Superlok Instrumentation SRV Relief Valves
An SRV Relief Valve is a compact and adjustable valve designed to release pressure in a hydraulic system to prevent overloading. Its cracking pressure, or the pressure at which it starts to release fluid, can be externally adjusted to meet specific needs. Additionally, a lock wire feature ensures that the pressure setting remains secure once adjusted. Each valve undergoes rigorous testing at the factory to ensure reliability. The set pressure, or the upstream pressure at which flow begins, is repeatable within a 5% margin at room temperature. With a maximum working pressure of 300psi for SRVL and 6000psi for SRVH, this valve offers versatility and effectiveness in pressure management. If different cracking pressures are required, a spring kit (part no: RVL-SG) can be utilized.
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SRVH-S, High Pressure, Tube Connections
SRVH-MF, Male & Female NPT Connections
SRVL-S, Low Pressure, Tube Connections
Shop SRV Relief Valves
Click on the model number in the chart below to view that item. Options show below are most common and readily available.
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SRVH High Pressure Relief Valves
| Product SKU | Material | Pressure Rating | Connection Size & Type | Adjustment Type | Valve Operation | Pressure Range | Lead Time | Price |
|---|---|---|---|---|---|---|---|---|
| SRVH-MF-4N-S316 | 316 Stainless Steel | 6000 | 1/4" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $107.69 |
| SRVH-MF-4N-KZ-S316 | 316 Stainless Steel | 6000 | 1/4" NPT, Male x Female, Kalrez O-Ring | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $283.99 |
| SRVH-MF-4N-N-S316 | 316 Stainless Steel | 6000 | 1/4" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $107.69 |
| SRVH-MF-6N-S316 | 316 Stainless Steel | 6000 | 3/8" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $152.31 |
| SRVH-MF-8N-S316 | 316 Stainless Steel | 6000 | 1/2" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $156.92 |
| SRVH-MF-8N-N-S316 | 316 Stainless Steel | 6000 | 1/2" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $156.92 |
| SRVH-MS-4N-4-S316 | 316 Stainless Steel | 6000 | 1/4" NPT, Male x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $113.85 |
| SRVH-MS-8N-8-S316 | 316 Stainless Steel | 6000 | 1/2" NPT, Male x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $158.46 |
| SRVH-S-4-S316 | 316 Stainless Steel | 6000 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | Same Day | $115.38 |
| SRVH-S-4-E-S316 | 316 Stainless Steel | 6000 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $115.38 |
| SRVH-S-4-G-S316 | 316 Stainless Steel | 6000 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | 5000 to 6000psi rated (Green Spring) | 1-2 Weeks | $146.77 |
| SRVH-S-4-N-S316 | 316 Stainless Steel | 6000 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $115.38 |
| SRVH-S-4-Y-S316 | 316 Stainless Steel | 6000 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | 225 to 750psi rated (Yellow Spring) | 1-2 Weeks | $146.77 |
| SRVH-S-6-S316 | 316 Stainless Steel | 6000 | 3/8" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | Same Day | $146.15 |
| SRVH-S-6-N-S316 | 316 Stainless Steel | 6000 | 3/8" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $146.15 |
| SRVH-S-8-S316 | 316 Stainless Steel | 6000 | 1/2" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $160.00 |
| SRVH-S-8-N-S316 | 316 Stainless Steel | 6000 | 1/2" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $160.00 |
SRVL Low Pressure Relief Valves
| Product SKU | Material | Pressure Rating | Connection Size & Type | Adjustment Type | Valve Operation | Pressure Range | Lead Time | Price |
|---|---|---|---|---|---|---|---|---|
| SRVL-MF-4N-S316 | 316 Stainless Steel | 300 | 1/4" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Pressure | Same Day | $153.99 |
| SRVL-MF-4N-KZ-S316 | 316 Stainless Steel | 300 | 1/4" NPT, Male x Female, Kalrez O-Ring | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $268.99 |
| SRVL-MF-4N-N-S316 | 316 Stainless Steel | 300 | 1/4" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $153.99 |
| SRVL-MF-8N-S316 | 316 Stainless Steel | 300 | 1/2" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $182.99 |
| SRVL-MF-8N-N-S316 | 316 Stainless Steel | 300 | 1/2" NPT, Male x Female | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $182.99 |
| SRVL-MS-4N-4-S316 | 316 Stainless Steel | 300 | 1/4" NPT, Male x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $161.99 |
| SRVL-S-4-S316 | 316 Stainless Steel | 300 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $161.99 |
| SRVL-S-6-S316 | 316 Stainless Steel | 300 | 3/8" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $181.99 |
| SRVL-S-6-N-S316 | 316 Stainless Steel | 300 | 1/4" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $181.99 |
| SRVL-S-8-S316 | 316 Stainless Steel | 300 | 1/2" Tube x Tube | Adjusting Nut | Direct-Acting | No Spring | 1-2 Weeks | $197.99 |
Spare & Related Parts
Technical Specs
