Product introduction
Micro-resistance ball type check valve’s disc is a ball coated with rubber and dependant on the line pressure the ball can roll in the chute in the body to open or close the valve without any noise and water-hammering and with good sealing capability.The flow rate is much with little resisting force and little pressure loss.It can be installed vertically or horizontally and widely used at the outlet of pump in cold water’s,hot water’s,industry’s and sewage’s pipeline system.
Main technical parameters
Nominal pressure: 1.0-1.6
Nominal diameter: 50-1000mm
Service:water and weak corrosive fluid
Working temperature:0-80
Flanged end: GB/T17241.6 GB9113
Inspection and test: GB/T 13927 API 598
Typical installation diagram
Material
|
part
|
body
|
disc
|
spring
|
seat
|
|
Material
|
Cast iron ductile cast iron,cast steel
|
Cast copper,stainless steel
|
Stainless steel
|
Copper,steel
|
Main dimensions unit:mm
|
DN
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
450
|
500
|
600
|
700
|
800
|
900
|
1000
|
|
L
|
203
|
216
|
241
|
292
|
330
|
356
|
495
|
622
|
698
|
781
|
914
|
978
|
978
|
1295
|
1448
|
1600
|
1760
|
1900
|
|
H
|
180
|
210
|
225
|
245
|
280
|
320
|
380
|
450
|
470
|
500
|
|
|
|
|
|
|
|
|
|
H1
|
|
|
|
|
|
|
510
|
570
|
640
|
715
|
815
|
825
|
980
|
1155
|
1260
|
1350
|
1660
|
1700
|
|
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