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E-mail
jkfamen021@126.com
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Phone
15221970002
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Address
560 Baoxiang Road, Jiading District, Shanghai
Blair Valve Co., Ltd., USA
jkfamen021@126.com
15221970002
560 Baoxiang Road, Jiading District, Shanghai

| Product Name: | Imported corrugated pipe cage double seat regulating valve | Product Model: | Buhrer |
| Drive mode: | Pneumatic, electric | Connection form: | Flanges, welding |
| Structural form: | Balanced type | Sealing structure: | PTFE,PPL, Wave tube seal |
| Pressure range: | 150~1500LB | Nominal diameter: | DN25-500 |
| Common materials: | WCB, 304316, alloy steel, etc | Technical Consultation: |
ImportpneumaticOverview of bellows cage double seat regulating valve:
The bellows cage double seat regulating valve is a pressure balanced regulating valve with a compact valve body structure, S-shaped fluid channel, low pressure drop loss, large flow rate, and wide adjustable range The upper valve cover adopts a corrugated pipe sealing structure, which can completely eliminate the possibility of process medium leaking outward from the clearance of the valve stem movement. This is one of the significant features of the corrugated pipe sealing valve Due to the deformability and outstanding aging resistance of bellows components, this type of regulating valve completely overcomes the weaknesses of packing aging and temperature difference sensitivity that usually exist in packing seal valves Secondly, adopting a double sealing structure of corrugated tube and packing ensures better safety and reliability Therefore, it has been widely used in automatic control systems for rare and special media such as highly toxic, highly corrosive, and radioactive substances
The regulating valve is equipped with a multi spring thin film actuator, which has a compact structure and high output force
Standard specifications:
Nominal diameter: DN25-500
Nominal pressure: ANSI 125LB~1500LB
Connection form: flange, welding
Applicable temperature: -101~+649 ℃
Main performance:
Leakage rate:
Metal valve seat: meets the standard ANSI Bl6.104 Grade VI, less than 0.5% of the rated Cv;
PTFE valve seat: standard compliant with ANSI Bl6.104 Class VI, 10-7 below rated Cv
Return difference: 5% (without locator); 3% (with locator)
Linear: ± 11% (without locator); ± 3% (with locator)
Note: Standard V-shaped polytetrafluoroethylene packing is used
Adjustable range: 50:1