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APPLICATIONS
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Marotta’s “no
oscillation” relief valve is particularly well
suited to applications where relief valve
oscillation at high pressures is a safety hazard
or is detrimental to other system components.
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OPERATING
DESCRIPTION
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The
key to the smooth operation of the PRV95 is
“upstream control”. Unlike other direct
acting, relief valves, the PRV95 has a
pressure-sensing disc on the poppet upstream of
the seat that controls the valve position. By
placing this control surface in an area of
relatively constant fluid density, the PRV95
provides highly stable control throughout its
operating range.
The PRV95 uses a unique seat that adds to its
“no impact” characteristics. The valve seat
seals against the outer radius of the poppet,
providing a larger and more contamination
tolerant sealing surface than a typical “point
contact” valve seat. |
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VALVE SPECIFICATIONS
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| Model Number |
PRV95 |
| Pressure Range |
0-10,000 psig (0-689 bar) |
| Proof Pressure |
1.5
times maximum expected operating
pressure |
| Burst Pressure |
2.5
times maximum expected operating
pressure |
| End Connections |
As
required |
| Cv |
0.245 |
| ESEOD |
Up
to 1.25 in (32 mm) |
| Body Material |
Stainless
Steel |
| Trim |
Stainless
Steel |
| Seal Material |
Fluorocarbon
(Viton®) |
| Seat Material |
Vespel®
SP-1 |
| Note:
The listed performance data represents
specific program requirements and not
the design limitations of the device. |
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