三喜工業 List of Products and Services

We would like to introduce our "Flexible Ducts / Duct Hoses." The "Aldec 112 Aluminum Bellows Flexible Duct" is a lightweight and temperature-resistant product that features a steel wire spirally enclosed within a multi-layer laminate made of four layers of materials. In addition, we offer a wide variety of other products, including "Rigid Flex," "PVC Flexible Hose (Soft)," and "Toyoduct PV (PVC Duct)." 【Product Lineup (Partial)】 ■ Aluminum Compact Flex (S) ■ Aluminum Flex (W Type) ■ Iron Flex ■ Stainless Steel Flex *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our "Insulated Flexible Duct." The "Atcoflex SAF-030-42" improves strength by using three-directional glass fibers on the surface. It also incorporates flexible and strong steel wire as the inner material. Additionally, we offer "Silent Flex (N/S Type)" and "Compact Silent (N/S Type)." Please feel free to contact us for inquiries. 【Product Lineup】 ■ Atcoflex SAF-030-42 ■ Silent Flex (N/S Type) ■ Compact Silent (N/S Type) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

"Atokofureki" is a flexible duct manufactured by Atco Rubber Products in the United States, designed for long lengths with an untreated end, measuring approximately 7.6 meters. The use of three-directional glass fibers on the surface enhances its strength. Because it employs long-fiber glass, it can suppress dust during installation. The inner material consists of double-layered polyethylene terephthalate film, making it resistant to tearing, and its lightweight nature reduces the burden on the structure. 【Features】 ■ Available in sizes from φ100 to φ400 in increments of φ25 (other sizes φ450 and 500 are also available) ■ Obtained non-combustible material certification from the Ministry of Land, Infrastructure, Transport and Tourism (Certification Number: NM-4396-1) ■ Achieved formaldehyde emission grade F☆☆☆☆ *Uses plant-based adhesive for insulation material ■ Uses insulation material with a thermal resistance value (R-value) of 4.2 (calculated in U.S. customary units) ■ Utilizes flexible and strong steel wire in the inner material ■ Compressed and packaged in a polybag for easy transportation, minimizing waste on site Note: The above product may vary slightly in content depending on the branch or sales office, and may not be available at all locations. Please contact your local branch or sales office for details. *For more information, please refer to the materials. Feel free to contact us with any inquiries.

• Duct related equipment

"Arudek" is a high-performance wire aluminum flexible duct manufactured by Deck, based on European standards (EN13180), in Europe, where there is a strong awareness of environmental and safety issues. "Arudek 112" features high strength and rigidity (shape stability) due to the combination of 75μ thick aluminum alloy foil and polyester. "Arudek 270" excels in flexibility and enhances strength by using a two-layer structure of polyester. Even for use in ships, where very high safety standards are required, it has been recognized as compliant with MED (EC Marine Equipment Directive), earning high evaluations for product safety and manufacturer reliability. 【Features】 ■ Contributes to cost reduction ■ Flexibility + shape stability ■ Excellent durability and strength ■ Non-combustible material certification obtained *For more details, please refer to the PDF materials or feel free to contact us. Note: The above products may vary slightly in content depending on the branch or sales office, and there may be cases where they are not handled, so please contact each branch office for confirmation.

• Duct related equipment

We would like to introduce our handled products, "Insulation Materials / Thermal Insulation Materials." The "Duct Insulation Ace" is an industrial product processed with adhesive at our domestic factory, ensuring uniform quality. It does not release glass fibers or other particles, allowing for comfortable installation with lightweight equipment. Additionally, we offer a wide range of products including "Glass Wool," "ALK Roll Glass Wool," and "Heat Insulation Materials." Please feel free to contact us when you need assistance. 【Product Lineup】 ■ Glass Wool (GC Adhesive) ■ ALK Roll Glass Wool (Single-Sided ALK Adhesive) ■ MG Mighty Roll Rock Wool ■ Aluminum Craft Tape (With Adhesive) ■ Hexagonal Wire Mesh ■ Spindle Nails ■ Duct Insulation Ace (Product with Non-Combustible Certification from the Minister of Land, Infrastructure, Transport and Tourism) *For more details, please refer to the PDF materials or feel free to contact us.

• Duct related equipment

We would like to introduce the 'hoods' for kitchens that we handle. The thickness is 1.0t, and we can also manufacture stainless steel, steel plate, copper plate, glass plate, etc. We offer a lineup including "BOX type," "Hopper type," and "Double type" with enclosures. 【Lineup】 ■ Box type hood ■ Hopper type hood ■ Enclosed hopper type hood (double type) ■ Supply and exhaust type hood (side discharge, bottom discharge) *For more details, please refer to the PDF materials or feel free to contact us.

• Duct related equipment

We would like to introduce our kitchen exhaust hoods, "Santa Food," that we handle. They can be installed without special ordering to match the size of kitchen equipment in the store's kitchen. They are easy to transport and bring in, and assembly and installation on-site are straightforward. Additionally, they allow for safe and efficient exhaust. 【Lineup (partial)】 ■SPF-60 ■SPF-75 ■SPF-90 ■SPF-100 *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

The "One Shot Food SOC" is a high-performance product with low static pressure and low air volume. It can be easily disassembled, making it convenient for cleaning. Maintenance costs are also expected to be reduced. Additionally, the standard configuration includes a grease filter, Adams 5, fire volume damper, main unit, and steam head. 【Features】 ■ High-performance product with low static pressure and low air volume ■ Effective in reducing initial and running costs of air conditioning ■ Convenient for cleaning due to easy disassembly ■ Maintenance costs are expected to be reduced *For more details, please refer to the PDF materials or feel free to contact us.

• Duct related equipment

We would like to introduce our "Grease Filter." Our products have a grease removal rate of over 80% and a fat recovery rate of over 90%, with options such as "double-sided standalone type" and "single-sided double unit type." Additionally, we also offer "filters" for spare and replacement use. Please feel free to contact us when you need assistance. 【Product Lineup (Partial)】 ■ DC Type Double-Sided Standalone ■ DC Type Double-Sided Double Unit ■ DC Type Double-Sided Triple Unit ■ Filter (Spare/Replacement) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our "Low-Pressure Grease Filter." Our lineup includes the "Double-Sided Single Type," "Double-Sided Double Type," and "Double-Sided Triple Type." The grease removal rate is over 80%, and the oil recovery rate is over 96%. Please feel free to contact us when you need assistance. 【Partial Lineup】 ■ LL Type Double-Sided Single Type ■ LL Type Double-Sided Double Type ■ LL Type Double-Sided Triple Type ■ Filters (spare and replacement) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our "Grease Filter with Built-in Pressure Fan." We offer the "Double Check DC Type" and the "Low Static Pressure Double Check LL Type." Additionally, we have the "Weather Cover" available as an option. Please feel free to contact us when you need assistance. 【Product Lineup (Partial)】 ＜Double Check DC Type＞ ■DC-50HF ■DC-502HF ■DC-503HF ■WE-30NRD (Option) ■WE-35NRD (Option) ■WE-40NRD (Option) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

"Mistron®" is a simple structure grease separator for kitchen exhaust that keeps costs down and is easy to maintain. It not only lowers the temperature of exhaust due to mist but also prevents duct fires with the installation of a safety shower. In addition to safety features that suppress the spread of fire in case of an emergency, it significantly contributes to reducing the environmental impact on neighboring areas caused by exhaust. [Features] ■ Simple structure that keeps costs down and is easy to maintain ■ Lowers exhaust temperature due to mist ■ Prevents duct fires with the installation of a safety shower ■ Safety features that suppress the spread of fire in case of an emergency *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our low-pressure kitchen "Fireproof Air Volume Control Damper." It is made of stainless steel with a thickness of 1.5mm. The fuse activation temperature is 185°C. Additionally, we also offer a "Hood Insert Type FVS" that can be manufactured to match the opening size of the hood. 【Lineup (partial)】 ■HGL-1515 ■HGL-2015 ■HGL-2020 ■HGL-2025 ■HGL-3015 ■HGL-3020 *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our kitchen product, the "Food Light." We offer an LED type. The glass globes are available in clear and frost. Please feel free to contact us when you need assistance. 【Lineup】 ■ HLD-100C (Equivalent to 100W LED clear glass globe) ■ HLD-100F (Equivalent to 100W LED frost glass globe) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our "drain cock" products. Our lineup includes the "Type C" with a mounting hole diameter of 19mm, the "Type D" with a diameter of 21mm, and the "Type E" with a diameter of 18mm. Please feel free to contact us when you need assistance. 【Lineup】 ■ Type C (mounting hole diameter 19mm) ■ Type D (mounting hole diameter 21mm) ■ Type E (mounting hole diameter 18mm) ■ Type F (mounting hole diameter 21mm) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce the "Air Filters" that we handle. The "Filtron Filter" comes in both a washable type that can be regenerated through methods like water washing and a disposable type, while the "Scott Filter" offers varying densities and thicknesses depending on the application, allowing for flexible selection. In addition, we have a wide range of other filters available, including "Catalytic Filters," "Medium Efficiency Filters," and "Salt Damage Removal Filters." 【Features】 ■ Filtron Filter: Available in both washable and disposable types ■ Scott Filter: Density and thickness vary by application, allowing for free selection ■ Sarang Honeycomb: Made from chemical fibers woven into fabric, suitable for air outlets and fan coils ■ Cosmo Filter: High dust retention capacity and non-combustible *For more details, please refer to the PDF materials or feel free to contact us.

• Duct related equipment

We would like to introduce our "Filter Casing." We offer both "Square Connection Type" and "Round Connection Type." They can be manufactured using materials such as galvanized steel, stainless steel, and Galvalume steel. Please feel free to contact us when you need assistance. 【Product Lineup】 ■ Square Connection Type ■ Round Connection Type *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

The "KCU" is a deodorization unit for kitchen exhaust that does not require a heat source or water source. It self-regenerates through catalytic decomposition and adsorption-desorption effects, ensuring a long lifespan. Constructed from inorganic materials, it is non-combustible and features a high-performance adsorbent combined with a room-temperature active catalyst, making it a high-performance product. 【Features】 ■ High Performance: Combines high-performance adsorbent and room-temperature active catalyst ■ Long Lifespan: Self-regenerates through catalytic decomposition and adsorption-desorption effects ■ Non-combustible: Made from inorganic materials ■ Low Pressure Loss: Standard 40Pa ■ No heat source or water source required *For more details, please refer to the PDF document or feel free to contact us.

• Ventilation and smoke exhaust equipment

We would like to introduce our "Corner Damper." Our lineup includes the "VD," which allows for manual adjustment of the airflow within the duct, as well as the "MD," which is motor-driven for adjustment, and the "CD," which prevents backflow of air. Additionally, we offer a "Smoke Exhaust Vent" that opens in conjunction with smoke detectors or manual release devices during a fire, allowing smoke to be expelled outside. 【Partial Lineup】 ■VD ■FD ■SFD (manual reset / automatic reset) ■PFD (manual reset / automatic reset) ■MD (without motor / with motor) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our "Round Damper." The "VD" series includes manual lever types, worm gear types, and rotary types in its lineup. Additionally, the "FD" series offers corrosion-resistant specifications. Furthermore, we also have the "PFD (Automatic Reset Type)," which maintains the damper in an open state using the force of a spring within the cylinder and automatically closes in emergencies due to gas pressurization and the melting of a temperature fuse. 【Partial Lineup】 <VD (Airflow Control Damper)> ■ Manual lever type ■ Press guide type ■ Worm gear type ■ FG type ■ Manual lever type with high airtightness, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce the various components for dampers that we handle. Our lineup includes items such as "airflow control damper actuators," "bevel gearboxes," and "joints." Additionally, we also offer related equipment for damper manufacturing, such as "temperature fuses" and "bush shafts and bearing cases." 【Partial Lineup】 <Inspection Ports> ■Square Type ■Round Type ■Airflow Control Damper Actuator ■Bevel Gearbox ■Joint ■Universal Joint *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce our "Sealing Diffuser." We offer a lineup that includes the commonly used multi-layer cone-shaped outlets for heating, cooling, or ventilation, such as the "C2 type (round)" and the straight-structured "E2 type (square)." In addition, we also have a variety of "Ceiling Contamination Prevention Outlets," so please feel free to contact us when you need assistance. 【Partial Lineup】 ■C2 type (round) ■E2 type (square) ■Ceiling Contamination Prevention C type (round) ■Ceiling Contamination Prevention E type (square) ■SED *For more details, please refer to the PDF materials or feel free to contact us.

• Air conditioning equipment

We would like to introduce the linear air outlets (line-type outlets) that we handle. The "BL type" is a linear air outlet that utilizes a vortex and is installed at building entrances, elevator halls, perimeters, etc., and is used as an air curtain. The "CL type" is a simple elongated line-shaped outlet that has low resistance, minimizes static pressure loss and generated noise, and allows for a longer reach. It is installed at building entrances, lobbies, etc., and is used as an air curtain. 【Features of BL Type】 - A line-type outlet that controls airflow by utilizing vortices. - The structure of the outlet is simple, and it has an ideal nozzle-shaped cross-section, resulting in low static pressure loss and reduced noise generation. - By rotating the dials at both ends, vertical, horizontal, and diagonal airflow can be easily set. - The connection type at the joint allows for a sense of unity even in longer dimensions. *For more details, please refer to the PDF document or feel free to contact us.

• Air conditioning equipment

We would like to introduce our "Universal Type Air Outlet." The blades (vertical [V] and horizontal [H]) are movable, allowing for easy adjustment of the diffusion range and reach distance. The model with a shutter (S) enables airflow adjustment. We offer a rich lineup including the "H (V) type," "VH (HV) type with double frame filter," and "condensation prevention type (with ND cover)." 【Partial Lineup】 ■ H (V) type ■ HS (VS) type ■ VH (HV) type ■ VHS (HVS) type ■ H (V) type with double frame filter *For more details, please refer to the PDF document or feel free to contact us.

• Air conditioning equipment

We would like to introduce our "Grill-Type Air Inlet." Primarily used as an air inlet, the blades (vertical [V] and horizontal [H]) are fixed, and models with a shutter (S) allow for airflow adjustment. We offer a variety of products including the "GV (GH) Type with Double Frame Filter," "Punching Type Air Inlet," and lightweight, condensation-resistant "Foamed PVC Air Outlets and Inlets." 【Product Lineup (Partial)】 ■ GV (GH) Type ■ GVS (GHS) Type ■ GV (GH) Type with Double Frame Filter ■ GVS (GHS) Type with Double Frame Filter ■ Punching Type Air Inlet *For more details, please refer to the PDF document or feel free to contact us.

• Air conditioning equipment

We would like to introduce the "nozzles" that we handle. Starting with the "Nozzle Type Air Outlet (MKG Type)" suitable for places that require a long reach, we also offer the sleekly designed "Nozzle Type Air Outlet (MKG-W Type)" and the easily operable "Pancake Louver Type (PK Type)." Additionally, for condensation prevention, we have options such as covers with condensation prevention features, heaters, and flocking processing. 【Product Lineup】 ■ Nozzle Type Air Outlet (MKG Type) ■ Nozzle Type Air Outlet (MKG-W Type) ■ Pancake Louver Type (PK Type) ■ Turbo Nozzle (Universal Type) ■ Butterfly Shutter *For more details, please refer to the PDF document or feel free to contact us.

• Air conditioning equipment

We would like to introduce the "ventilation ducts" that we handle. Starting with the "wall-mounted ventilation duct (deep hood)," we offer a wide range including "wall-mounted round ventilation ducts" and "indoor round ventilation ducts." In addition, we also handle large-diameter and extra-large-diameter "weather covers." Custom sizes are also available, so please feel free to contact us. 【Product Lineup】 ■ Wall-mounted ventilation duct (deep hood) ■ Wall-mounted round ventilation duct (round hood) ■ Wall-mounted round ventilation duct ■ Indoor round ventilation duct ■ Weather cover (standard product) *For more details, please refer to the PDF document or feel free to contact us.

• Air conditioning equipment

The "KPC Series" is a plasma automatic cutting system that achieves both lightweight design and high-speed movement through a dual-axis belt drive system. By combining it with the automatic programming software for sheet layout, "DUCTCAM Completo10," it delivers the highest level of duct cutting performance. Additionally, the XY-axis support uses a roller guide system, which allows for low sliding friction without lubrication, resulting in reduced acceleration and deceleration times, thereby achieving high speed and high rigidity. 【Features】 ■ Cutting speed up to 10m/min ■ Convenient functions focused on operability - Manual cut mode - Cutting speed change function on the NC side - Ability to select the machine origin position from four XY coordinates, etc. ■ Machine structure supporting high-speed and high-precision movement ■ Water-cooled plasma generator: D-8000 is standard equipment (renewal is also possible) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

The "Corner Lock SKR-4" is a lightweight and highly efficient duct corner riveting machine that achieves a more robust rivet through improvements in the riveting section. By removing unnecessary parts from the exterior, it features a simple and high-quality design that makes it easy to carry. (The air cylinder section is made of aluminum.) 【Features】 ■ Fits perfectly into the recess of our corner pieces ■ No misalignment of corner pieces, resulting in a clean finish ■ No impact noise during riveting, and the air exhaust sound is very quiet, allowing for comfortable operation ■ Equipped with a safety cover to enhance safety during operation ■ A loaner machine is available for maintenance ★ For details on the improvements, please refer to the basic information section or the PDF document. Note: This product may vary slightly in content depending on the branch or sales office, and it may not be available at all locations, so please contact your local branch or sales office for more details.

• Duct related equipment

The "CP-7160/CP-7165" is a low-vibration air hammer recommended for the Mitsui Haze tightening and flange return during duct fabrication. Achieving low vibration through a new design, it features a lightweight construction that improves work efficiency. The air adjustment function allows for adjustments according to the thickness of the material. The "CP-7160" is the standard type, while the "CP-7165" is the powerful type. 【Features】 ■ Achieves low vibration through new design ■ Lightweight design increases work efficiency ■ Air adjustment function allows for adjustments based on material thickness ■ Powerful for processing thick plates (CP-7165) *For more details, please refer to the PDF document or feel free to contact us.

• Duct related equipment

We would like to introduce the "power tools" that we handle. Our lineup includes a wide variety of products such as the "cordless impact driver," "cordless hammer drill," "gas nailer," and "cordless disc grinder." In addition, we also offer "chip saw cutters," "cordless rotary hand saws," "cordless shears," and "nibblers." 【Partial Lineup】 ■ Cordless Impact Driver ■ Cordless Hammer Drill ■ Gas Nailer ■ Cordless Disc Grinder ■ Cordless All-Thread Cutter *For more details, please refer to the PDF document or feel free to contact us.

• Work tools

We would like to introduce the "power tool accessories" that we handle. Our lineup includes a wide variety of products such as "circular saw blades (replacement blades)", "cutting wheels", "titanium metalworking drills", "step drills", and "double-headed plus bits". In addition, we also offer "hexagon sockets" and "core drills for ALC". Please feel free to contact us when you need assistance. 【Partial Lineup】 ■ Circular saw blades (replacement blades) ■ Cutting wheels ■ Titanium metalworking drills ■ Step drills ■ Anchor drill ADX-SDS (4 edges) *For more details, please refer to the PDF document or feel free to contact us.

• Work tools

This is a replacement blade for spiral ducts and metalworking chip saw cutters. We offer two types to suit your needs! Please check the specifications and give them a try! 【Smart Saw Thinner SST-110-32 Agile Silver】 With a fluororesin coating and thin blade design, it offers speedy and sharp cutting performance! The special resin-filled laser slits reduce vibration and noise! Model number: SST-110-32 Outer diameter: 110mm Blade thickness: 1.6mm Inner diameter: 20mm Number of teeth: 32p Quantity: 1 piece Applications: Zinc spiral ducts, thin steel plates, steel materials, etc. Compatible power tools: Dust-proof cutters, dust-proof circular saws, spiral cutters 【Smart Saw SSS-110-32 Durable Gold】 Outstanding durability! Fluororesin coating! The special resin-filled laser slits reduce vibration and noise! Model number: SSS-110-32 Outer diameter: 110mm Blade thickness: 1.8mm Inner diameter: 20mm Number of teeth: 32p Quantity: 1 piece Applications: Zinc spiral ducts, thin steel plates, steel materials, etc. Compatible power tools: Dust-proof cutters, dust-proof circular saws, spiral cutters *For more details, please refer to the materials or feel free to contact us.

• Work tools

The "Smart Saw" is a spiral duct and metalworking chip saw with outstanding durability. The outer diameter is 110mm, and the blade thickness is 1.8mm. It features a fluororesin coating and special resin-filled laser slits that reduce vibration and noise. [Features] ■ Outstanding durability ■ Fluororesin coating ■ Vibration and noise reduction through special resin-filled laser slits *For more details, please refer to the PDF document or feel free to contact us.

• Work tools

This is a replacement blade for spiral duct and metalworking chip saw cutters. (Metalworking, 110φ) Model number: SST-110-32 Quantity: 5 pieces Outer diameter: 110mm Blade thickness: 1.6mm Inner diameter: 20mm Number of teeth: 32p Maximum operating speed: 13,000 r.p.m Usage: Zinc spiral duct angle steel, etc. Applicable power tools: Dust-proof cutter, dust-proof circular saw, spiral cutter

• Work tools

We would like to introduce the "Laser Level" that we handle. Starting with the "MLP-3" with an accuracy of ±1mm within 5m, we also have a rich lineup including the "BTL1000G Sumi-dashi Meijin," "RD2," and "LTC-TP520Z Ultra High Brightness Red Line." In addition, we have many other products available, such as the "MG-41A Receiver with High Brightness Red Line," so please feel free to contact us when you need assistance. 【Partial Lineup】 ■MLP-3 ■BTL1000G Sumi-dashi Meijin ■RD2 ■LTC-TP520Z Ultra High Brightness Red Line ■LTK-G350P Ultra High Brightness Green Line *For more details, please refer to the PDF document or feel free to contact us.

• Work tools

We would like to introduce the "hand tools" that we handle. Our lineup includes the "Yanagi blade," "Bessey universal scissors D-165," "ink pot," "rail support," "rail clapper," "groove chisel," and many more. In addition, we also offer "wide stapler and staples for insulation flex," "angle cutter," and more, so please feel free to contact us when you need assistance. 【Partial Lineup】 ■ Yanagi blade ■ Egui ■ Matomo ■ Gripper ■ Bessey universal scissors D-165 *For more details, please refer to the PDF materials or feel free to contact us.

• Work tools

We would like to introduce the "safety equipment" that our company handles. We offer a wide range of products including "safety harness twin lanyards," "safety shoes," "helmets," "work gloves," "air-conditioned clothing," "safety goggles," and "dust masks." Please feel free to contact us when you need assistance. 【Product Lineup (Partial)】 ■ Safety harness twin lanyard ■ Safety harness full harness ■ Safety shoes ■ Helmets ■ Work gloves *For more details, please refer to the PDF document or feel free to contact us.

• Safety and consumables

We would like to introduce the "protective films/sheets/tapes" that we handle. The colors of the "protective film" are blue and transparent, and the sizes available are 0.06t×625×100m, 0.06t×1020×100m, and 0.06t×1250×100m. Additionally, the "protective sheets" include "flame-retardant sheets" and "blue sheets," while the "anti-slip tape" comes in a size of 50mm width × 18m, with colors available in black, glow-in-the-dark, orange, yellow, green, and transparent. 【Product Lineup】 ■ Protective Film ■ Polyethylene Sheet ■ Protective Sheet ■ Anti-Slip Tape *For more details, please refer to the PDF document or feel free to contact us.

• Safety and consumables

Here is an introduction to the specifications of ducts. The classification of ducts is as follows: "Low-pressure ducts" have a positive pressure of 500 or less and a negative pressure within -500. "High-pressure 1 ducts" exceed a positive pressure of 500 but are 1,000 or less, and have a negative pressure exceeding -500 but within -1,000. "High-pressure 2 ducts" exceed a positive pressure of 1,000 but are 2,500 or less, and have a negative pressure exceeding -1,000 but within -2,000. Additionally, we provide information on "the thickness of straight pipes for spiral ducts," "the thickness of joints for spiral ducts," and "joining materials" in a PDF document, so please refer to it for more details. 【Duct Classification】 ■ Low-pressure duct ・Positive pressure: 500 or less / Negative pressure: within -500 ■ High-pressure 1 duct ・Positive pressure: exceeding 500 but 1,000 or less / Negative pressure: exceeding -500 but within -1,000 ■ High-pressure 2 duct ・Positive pressure: exceeding 1,000 but 2,500 or less / Negative pressure: exceeding -1,000 but within -2,000 *For more details, please refer to the PDF document or feel free to contact us.

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