| Customization: | Available |
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| Customized: | Customized |
| Certification: | RoHS, ISO9001, CE |
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Wood and solid fuel stove damper bulb and capillary thermostat
Type WQD
Applications:
This thermostat is an automatic control of wood, pellets, coal or anthracite fired solid fuel appliances like room heaters, boilers, stoves, central heating units.
Its modulating action provides economy in fuel consumption.
Main features:
Operation principle: It controls the combustion by throttling the primary air intake to the fire. A flat damper plate at the end of the control arm is moved relative to the air intake port of the appliance in response to variations of temperature at the bulb.
It is actuated by the expansion of liquid in the bulb, through capillary tubing to a diaphragm located in the body.
Body:Zinc plated steel
Shaft: Dia. 6mm, with 4.8mm flat, with 270° angular rotation.
Fixing: By means of the backside bracket, for dia 4mm screws, distance 42 to 48mm (Front mounting by 2 screws M4, 28mm distance available on request)
Temperature Ranges:
-Room Air Control 4/40°C (40/105°F). Damper displacement between 4 and 40°C (40/105°F), with a 170mm length arm: 12.5mm
-Hot water 30/90°C (85/195°F)). Damper displacement between 30 and 90°C (85/195°F), with a 170mm length arm: 9.5mm
-Flue temperature 50/300°C (120/570°F). Damper displacement between 50 and 300°C (120/570°F), with a 170mm length arm: 9.5mm
Other temperature ranges and displacement available on request (MOQ apply)
Damper plates
Damper plates are available in circular form in dia. 80mm and dia. 120mm. (Rectangular forms on request).They are spring mounted to permit self-alignment of the plate in the closed position.
Damper plate position can be adjusted from 150 to 170mm on the arm.
Damper plates are fitted with a temperature resistant silicone gasket. Special arm length and damper plates may be made on request to suit application (MOQ apply).
Sensor dimensions:
Bulb and capillary are made stainless steel.
Bulb standard dia. 3, 6 or 8mm. (Depends of temperature ranges)
Standard capillary length 300 mm or 1500 mm
Main references with 170mm arm
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Damper disc diameter |
Capillary length |
Temperature ranges (°C) |
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4-40 (bulb dia. 6mm) |
4-40 (bulb dia. 8mm) |
30-90 (bulb dia. 6mm) |
50-300 (bulb dia 3 mm) |
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80 mm |
300 mm |
WQD0440AC60080G0 |
WQD0440AC80080G0 |
WQD3090AC60080G0 |
WQD50C0AC30080G0 |
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80 mm |
1500 mm |
WQD0440AO60080G0 |
WQD0440AO80080G0 |
WQD3090AO60080G0 |
WQD50C0AO30080G0 |
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120 mm |
300 mm |
WQD0440AC600C0G0 |
WQD0440AC800C0G0 |
WQD3090AC600C0G0 |
WQD50C0AC300C0G0 |
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120 mm |
1500 mm |
WQD0440AO600C0G0 |
WQD0440AO800C0G0 |
WQD3090AO600C0G0 |
WQD50C0AO300C0G0 |
Printed knobs
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4-40°C |
30-90°C |
50-300°C |
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66MM0060040402FB |
66MM0060300901FB |
66MM0060503001FB |
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0-10 |
40-104°F |
5-195 °F |
120-570°F |
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66MM006000102FB |
66MM0060040402FY |
66MM0060300901FY |
66MM0060503001FY |
Many other printed knobs available, see our catalogue #1
Established in China since 2000, with French technology and investment, our company is proud to have more than 60 years experience in manufacturing electromechanical components and 30 years experience in manufacturing safety component for Spas, swimming pools and hot tubs. This experience, combined with high tech equipment and high tech raw materials let us develop the new components needed by rapid expansion of Asian and Chinese market.
In our new factory, on more than 8000 square meters production lines, we have two manufacturing divisions:
Division one is producing components:
Thermostats, energy regulators pressure switches, level switches, flow switches, fire detection fusible links, heating elements and ceramic connection blocks.
Division two is producing complete assemblies and sub assemblies on customer specifications:
Swimming pools heaters, heat pumps backup heaters, spas heaters, small water heaters, immersion heaters, aluminum foils heaters, baseboard and convection heaters sub assemblies
Our R&D team develops new products upon customer specification, taking care of international safety standard (UL, CE, etc.).
We produce our own stamping, bending, plastic injection, zinc alloy injection, and machining.
We are equipped with up to date automatic and CNC TIG welding and laser welding equipment and ultrasonic welding checking.
We have our own climatic room, corrosion testing loops, salt spray testing, and more than 30 specific equipments for products life testing.
Our income quality control laboratory is equipped to check raw material (plastics, metals) physical characteristics and dimensions.
Our finished product control laboratory has more than 200 machines to calibrate and check temperature, pressure, level and flow controls.
From the raw material to the finished product we control every production step. Meet your control equipment demand rapidly and safely is our consistent promises.
Basic Information
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Product/Service Sell): |
Flow switches, level switch,pressure switch, thermostat,heating elements, back up heaters for heat pumps |
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Number of Employees: |
200 to 300 People |
Trade & Market
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Main Markets: |
North America |
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Total Annual Sales Volume: |
US$2.5 Million - US$5 Million |
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Export Percentage: |
60% |
Factory Information
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Factory Size (Sq.meters): |
10,000 square meters |
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Factory Location: |
Datian Cunkou, Fuwan industrial zone,Gaoming of Foshan, Guangdong province,China. |
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Number of Production Lines: |
15 |
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Number of R&D Staff: |
5-10 |
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Number of QC Staff: |
more than 15 People |
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Management Certification: |
ISO9001/14001 |
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Contract Manufacturing: |
Customized products on request (MOQ apply), OEM developments welcome. |
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