Operation
Uni-LOK "RVH1" Series Relief Valves
are designed for upsteam pressure overcoms
the force exerted by the spring, the poppet
opens, allowing flow throuth the valve.
During rellef, flow through the valve increases
proportionately as the inlet pressure increases.
Creaking pressure is only sensitive to inlet
pressure and is not affected by outlet pressure.
To increase the cracking pressure of the valve,
the spring must be compressed by simply turing
the adjustment cap clockwise.
General Information
Maximum Working Pressure 6000 psing (422kg/㎠)
Cracking Pressures from 200 psig to 1500 psig(14kg/㎠
to 105kg/㎠) to atmosphere.
Maximum Outlet Pressure 2450 psig (172kg/㎠)
should not exceed inlet pressure.
Operating Temperature Range -23℃ to 200℃ (-10°F
to 392°F)
Material : 316 Stainless Steel Construction. |
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| Table of Dimensions. |
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| Part
No. |
Oriflce |
Connection Size |
Dimension (mm) |
| in |
mm |
Inlet |
Outlet |
H |
B |
C |
L |
| RVH1-04T-04T |
0.140 |
3.6 |
1/4 OD |
1/4 OD |
105.0 |
36.5 |
40.6 |
51.5 |
| RVH1-04M-04T |
1/4 M NPT |
1/4 OD |
98.5 |
30.2 |
40.6 |
51.5 |
| RVH1-04M-04F |
1/4 M NPT |
1/4 M NPT |
98.5 |
30.2 |
29.7 |
40.6 |
| RVH1-M06T-M06T |
6mm OD |
6mm OD |
105.0 |
36.5 |
40.6 |
51.5 |
| RVH1-M08T-M08T |
8mm OD |
8mm OD |
105.0 |
36.5 |
40.6 |
51.5 |
|
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Ordering Information
Select the Spring Designator from the chart
bellow
that correponds to the desired Cracking Pressure
Range. |
| |
| Normal Cracking Roessure |
Spring Designator |
Color Code |
| 200 - 300 psig |
A |
Blue |
| 350 - 750 psig |
B |
Yellow |
| 750 - 1500 psig |
C |
Purple |
| 1500 - 2500 psig |
D |
Orange |
| 2500 - 3000 psig |
E |
Brown |
| 3000 - 4000 psig |
F |
White |
| 4000 - 5000 psig |
G |
Red |
| 5000 - 6000 psig |
H |
Green |
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