Bronze Check Valve | Type D

Definition and Application
This type of valve is used to return water back to the pipe and distribution network. The operation of this valve is based on changes in water pressure on each side. It is possible that the returned water may contaminate the water in the urban network due to contamination and raises some health problems. Also, it is possible that hot water swing check valve does not function in the internal network equipment well and eventually, hot water enters the meter and eventually dysfunctions the said meter.
The place for used
It is installed inside the meter box and connection pannel after the meter before the gate valve.
Key points
At the time of installation, one should be care about the direction of flash itched on the meter. The valve should be installed horizontally on the ground.
Work Temperature and Pressure
Work Temperature: 2-35 degrees centigrade / Work Pressure: 10 Atmosphere (10pn)
SN
V-15321

Component Parts and Material | ||||
Part Name | Material | ASTM Standard | EN Standard | Symbol |
Body | Bronze | ASTM B62/C83600 | EN1982/CC491K | CuSn5Zn5Pb5-C |
Disk | ||||
Nut | ||||
Hinge pin | Brass | ASTM B455/C38500 ASTM B455/C38000 | EN12164/CW614N EN12164/CW617N | CuZn39Pb3 CuZn38Pb2 |

Body Dimension | Outlet Thread (Female) | Inlet Thread (Male) | |||||||||
SizeInch | L(mm) | H(mm) | D(mm) | L2(mm) | L3(mm) | D2(mm) | Gears per Inch | L1(mm) | D1(mm) | Gears per Inch | |
½ | 66 | 25 | 13-15 | 9 | 14.3-15.9 | 18.6 | 14 | 14.3 | 20.9 | 14 | |
¾ | 73 | 35.5 | 19-20 | 10.5 | 15.9-17.5 | 24.2 | 14 | 15.9 | 25.8 | 14 | |
1 | 79 | 50 | 25-26 | 11.5 | 19.1-20.6 | 30.4 | 14 | 19.1 | 32.9 | 14 |
