Tel: 15351513002
Phone: 15351513006
Phone: 0515-89118577
0515-89118677
0515-89118277
Fax: 0515-8911 8000
E-mail：jtongcn 126.com
Website: www.jtongcn.cn
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
DRVZ and H42X silent check valves are composed of valve body, valve seat, guide body, valve disc, bearing shell, and spring and other parts. The internal flow channel adopts a streamlined design, with low pressure loss and short opening and closing stroke of the valve disc. When the pump is stopped, it can be quickly closed to prevent huge water hammer sound and form a silent effect. This valve is mainly used for water supply, drainage, fire protection, and HVAC systems. It can be installed at the outlet of the water pump to prevent medium backflow and water hammer damage to the pump.
Main technical parameters
nominal pressure | 1.0 | 1.6 | 2.5 |
| Working pressure | 1.0 | 1.6 | 2.5 |
Seal test pressure | 1.1 | 1.76 | 2.75 |
Shell Test Pressure | 1.5 | 2.4 | 3.75 |
Applicable Medium | 水 | ||
medium temperature | X＜80℃， T≤150℃， H≤200℃ | ||
Material for main parts
Part name | material |
Valve body, flow guide body | Cast iron, cast steel |
Valve seat, bearing shell, valve disc, shaft | Bronze or stainless steel |
spring | stainless steel |
Main overall dimensions
Nominal Diameter | L |
50 | 120 |
65 | 150 |
80 | 180 |
100 | 240 |
125 | 300 |
150 | 350 |
200 | 450 |
250 | 500 |
300 | 550 |
350 | 572 |
400 | 600 |
450 | 650 |
500 | 700 |
Flange connection size: Iron valves shall comply with GB4216.4 (5) -84 standard, and steel valves shall comply with GB/T9113.1-2000 (RF) standard.
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006
