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Yuhuan B.T.BEST Air-Valve Co., Ltd
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 No.19  Guangyang Road,  Qinggang,  Yuhuan,  Zhejiang,  China (Zip:318606)  
Tel: +86-576-87117695
Fax:+86-576-87108458
URL: www.btbvalve.com
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Pneumatic Angle Seat Valve FAQ
() Pneumatic Angle Seat Valve FAQ

Model:
Categories: Angle Seat Valve FAQ
Description:
The B.T.BEST pneumatic angle seat valves are made of stainless steel, brass and aluminum alloy, which widely used in fluid control industry, such as Filling System, Beer brewing, Chemical Industry, Rubber Machinery, Food Industry, Textile Industry, Vacuum Washing Machine, High-temperature Cleaning Equipments and so on. It is applicable to water, up to 200℃ steam, Iiquid, neutral gas, slight corrosive gas and liquid. 
 
Balve Material
Valve Material
Valve body   Features
Material Material reference Widely used, not suitable for corrosive medium
Brass 2.0402 Mainly used for corrosive medium
S.S.304 AISI 304 Mainly used for corrosive medium
S.S.316 AISI 316  
Actuator Material
S.S.304 AISI304 Suitable for high temperature and corrosive medium
Aluminum alloy AISI304 Mainly used for high temperature medium
Engineering plastic PAG-GF30 Suitable for normal temperature around 0-130℃
Seal
Material Temperature Features
NBR -10℃ ~ +80℃ Suitable for most neutral medium, such as air, water etc
FPM -20℃ ~ +180℃ Suitable for acid radical and oily medium, not suitable for hot water or steam
PTFE -180℃ ~ +200℃ Suitable for corrosive medium

Instructions for Installation and Application of Pneumatic Valves
Installation Notice:
1. Make sure that the model and parameter of the pneumatic valve are in accordance with the site installation and technical requirement.
2. Make sure the valve cylinder and position indicator without damage.
3. Clean the pipe of the pneumatic valve. If any matter inside the medium, please also install the filter valve in the front of the valve pipe.
4. Install as per direction of the arrow on the valve body; Connect the valve mouth to the pipe and make sure the connection is well sealed.
5. If the pneumatic valves are equipped with electric valve, please insure that the connection is well sealed.
6. Avoid to heat the packing of the pneumatic valve while connected by welding.

Notices of installation of pneumatic valve and electric valve:
1. Keep the fluid and gas clean to prevent blocking electric valve or piston.
2. Don’t touch the coil while solenoid valve works and gets hot.
3. Don’t take off the coil while the solenoid valve works, to protect against electrical hazard.
4. Don’t hit the coil, soleniod pipe and the connecting part to cause any damage.
5. Don’t cover the coil while electric valve works to prevent over-heating and destroying.
6. The actual aupply voltage of the solenoid valve should not exceed the tolerance.
7. The working pressure, woking temperature, viscidity of the medium should not exceed the specified scope.

Maintenance:
1. Before disassembling the pneumatic valve, drain the fluid inside the cylinder and the medium pressure of valve. Thoroughly clean the medium if it involves flammability and explosibility with high temperaure and high pressure or it is toxic or corrosive.
2. Step of Disassemble pneumatic valve:
    A. Disassembly of cylinder: Take off the locking ring, lift the cylinder and take it out. The piston, spring, position indicator and stem are visible.
    B. Disassembly of valve body:Ioosen with spanner at the end of the valve cover.
    C. Disassembly of seals:Disassemble the valve body, and the seals are at the end of the stem; remove the screw that fasten the seals.
4. Then assemble the valve step by step refer to the step of disassembling.
5. The parts such as seals, locking ring and spring should be assembled correctly. Tighten the connection properly, do not damage the film and valve seat.
6. The maintained valve must pass the pressure and leakage test, and then it can be put into use.
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