Direct-activated
Pressure Relief/Back/Sustaining Valve
Characteristic:
*When the inlet pressure directlyresponds to the pressure control
chamber to adjust setting pressure, theresponse is sensitive and
adjustment canbe very precise.
*The outlet pressure can be directly readform the gauge port
(PT1/8”).
*The valve’s body and cover areconnected with bolts and nuts
instead ofthread. This kind of design brings easyand tight seal.
*The valve is a diaphragm actuated Pressure ReliefValve. It opens automatically against theadjustable, preset spring loading whenever linepressure exceeds the setting of the spring. It isheld in a normally closed position by the force of the compression spring. Effective diaphragm areais large in relation to the seat area and the actiontherefore is positive, precise, and dependable.
List of parts and materials
1 Hand wheel ·······ABS
2 Nut···········SUS
3 Cover ········· SUS
4 Spring seat ······ SUS
5 Spring ········ SUS
6 Nut·········· SUS
7 Spring washer ····· SUS
8 Bolt ··········SUS
9 Nut···········SUS
10 Spring washer ·····SUS
11 Diaphragm ·······EPDM
12 Diaphragm plate ····SUS
13 Stem··········SUS
14 Packing·········EPDM
15 Piston ·········SUS
16 O-ring ·········EPDM
17 Bottom cover ······SUS
18 O-ring ·········EPDM
19 Body·········· SUS
Dimension
|
|
½” |
¾” |
1” |
1¼” |
1½” |
2” |
|
L |
78 |
88 |
88 |
122 |
122 |
160 |
|
H |
125 |
140 |
140 |
195 |
195 |
220 |
※ The rights is reserved to make changes in pattern, design or materials when deemed
necessary, without prior notice. ※ The drawings of designing, assembling or installing
needed our valve’s dimensions, should use our newest CAD files, which we have signed.
And if you used our old drawings for your designing, assembling or installing, we can
help you nothing.
Specification：
Size: ½” ~ 2”
Type: Direct Acting Diaphragm
Primarily Controlled By: Hydraulic pressure (upstream)
Purpose: To release inlet exceeding pressure over the maximum level preset
Connections: PF
Construction: All SUS304/316
Media available: Pure water, acid or alkaline liquid
Working temperature: 0 – 100 ℃
Inlet Pressure: 0 – 250 PSI
Adjustment range:
0 – 85 PSI
43 – 170 PSI
142 – 227 PSI
Additional ranges are available depending on your requirement.
When Ordering, Please Specify：
1、 Valve Model Number;
2、 Valve Size;
3、 Working Pressure;
4、 Adjustment Range.
