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The BNX stainless steel pressure sustaining valve is cast with fully stainless steel. It opens or closes the main valve through the back pressure pilot valve installed on the main valve side. 

Features 

1. The main valve was controlled to open and close by a small back pressure pilot valve through the hydraulic balance principle. 

2. The back pressure pilot valve detects the primary water pressure; if the pressure is greater than the setting, the main valve can be opened. 

3. The pilot valve's control loop is designed with the slow-closing feature; when it is shut down, the main valve will close slowly to
    effectively prevent against the water hammer effect. 

4. The main valve is diaphragm-controlled. The diaphragm is large in area and hence requires minimal pressure for opening and closing.
    Only 0.3kg/cm² of water pressure is sufficient to open or close the valve. 

5. The diaphragm is made of EPDM water-resistant synthetic rubber and is in compliance with food and health regulations.
    The internal reinforcing nylon fiber contributes to an extended life span. 

 

BRB stainless steel pressure sustaining valve

Working conditions and features

Operating pressure: 0.3~16kg/ cm²

Applicable fluid: Water 

Working temperature: 0~80°C

Set pressure:  0.35~1.2 kg/cm²; 1.0~3.5 kg/cm²

       3.0~6.0 kg/cm²; 6.0~10 kg/cm²

Pre-setting pressure: 0.4 kg/cm²

 

Thread connector follows the JIS B 0203 specification

口徑

L

W

H

40A

114

92

92

50A

120

102

106

  Unit: mm

65mm~200mm

Working conditions and features

Operating pressure: 0.3~16kg/cm²

Applicable fluid: Water 

Working temperature: 0~80°C

Set pressure:  0.35~1.2 kg/cm²; 1.0~3.5 kg/cm²

       3.0~6.0 kg/cm²; 6.0~10 kg/cm²

Pre-setting: 0.4 kg/cm²

Maximum working pressure: 16 kg/cm²

Water pressure testing: Valve body is 1.5 times and valve seat is 1.1 times the maximum working pressure. (Follows JIS B2003 specification).

Air pressure test: Valve seat 6 kg/cm² (Follows JIS B2003 specification).

 

Flange end specification: JIS 10K, 16K, 20K

口徑

L

W

H

65A

260

164

222

80A

262

168

224

100A

332

208

252

150A

400

245

366

200A

480

320

438

 Unit: mm

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