Conrader SRV390 Stainless Steel Soft-Seat Safety Relief Valve — 1/2" NPT
| Specifications (As Configured) | |
|---|---|
 Vendor |
Conrader
|
 SKU |
SRV390-SS-25
|
The Conrader SRV390 is a high-flow soft-seat safety relief valve in all–stainless steel construction, protecting air compressors, receiver tanks, and compressed-air or gas systems from overpressure. The stainless body and elastomer soft seat deliver bubble-tight reseating and strong corrosion resistance, making this version ideal for washdown, marine, and chemically aggressive environments where brass would corrode.
Key specifications
- Model: Conrader SRV390 soft-seat (elastomer-sealed) safety relief valve
- Inlet connection: 1/2" NPT
- Set pressure range: 25–300 PSI, factory-set — select your setting below
- Construction: ASTM A582 stainless steel seat, cap, and piston; 17-7 stainless steel spring
- Seal: Silicone (−65 to 400°F)
- Flow factor (slope method): 1.55; flow capacity up to ~534 SCFM at 300 PSI
- Seat leakage: bubble-tight per API 527
- Operating temperature: −65 to 400°F
Certifications
Designed, manufactured, and certified under Conrader's ISO 9001 system to ASME Boiler & Pressure Vessel Code Section XIII, and registered for use in Canada (CSA B51 / CRN).
Typical applications
Reciprocating and rotary screw air compressors, larger air receiver tanks, compressed-gas systems, and OEM pneumatic equipment — particularly where a corrosion-resistant stainless valve with higher flow is required.
The Conrader SRV390 stainless steel soft-seat safety relief valve delivers ASME-certified overpressure protection in a 1/2" NPT body, with factory pressure settings from 25 to 300 PSI to match your system.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
We offer Financing Through Many Different Avenues:
- Affirm is great for smaller purchases. You can do this during checkout.
- Clicklease is a great option for Instant decisions up to 25k. NO Hard credit pull. No Time in Business Required. More information can be found out about it here: https://www.clicklease.com/partner/warthog-air-compressor-store
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
AirCompressorStore.com offers a complete selection of air compressors, parts and accessories designed to keep your equipment running reliably and efficiently. Whether you’re servicing a small shop compressor, maintaining an industrial air system, or replacing a worn component in a production environment, our parts are sourced from trusted manufacturers and built to meet the demands of real-world compressed air applications.
