---
product_id: 651474720
title: "Brass, 1/4\" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM)"
brand: "pro-edge industrial pneumatics and controls"
price: "278.18 DT"
currency: TND
in_stock: true
reviews_count: 1
category: "Pro Edge Industrial Pneumatics And Controls"
url: https://www.desertcart.tn/products/651474720-brass-1-4-npt-soft-seat-safety-pressure-relief-valve
store_origin: TN
region: Tunisia
---

# 1/4" NPT brass threading -65°F to 400°F operating range 35 PSI preset pressure Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM)

**Brand:** pro-edge industrial pneumatics and controls
**Price:** 278.18 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Safety that’s always on point — protect your pressure with confidence!

## Quick Answers

- **What is this?** Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM) by pro-edge industrial pneumatics and controls
- **How much does it cost?** 278.18 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/651474720-brass-1-4-npt-soft-seat-safety-pressure-relief-valve)

## Best For

- pro-edge industrial pneumatics and controls enthusiasts

## Why This Product

- Trusted pro-edge industrial pneumatics and controls brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Preset Pressure:** Engineered for exact 35 PSI activation to safeguard your system without guesswork.
- • **Soft Seat Seal Technology:** Silicone/Viton elastomer seat delivers superior leak-tight performance under pressure.
- • **Durable Brass Construction:** Premium ASTM B16 brass body ensures long-lasting corrosion resistance and reliability.
- • **Wide Temperature Resilience:** Operates flawlessly from freezing -65°F to scorching 400°F environments.
- • **Made in the USA with Certified Quality:** Built to ASME and CSA B51 standards, guaranteeing trusted safety and compliance.

## Overview

This 1/4" NPT brass soft seat safety pressure relief valve is preset at 35 PSI with a 39 SCFM flow rate, designed to protect compressed air and gas systems from overpressure. Featuring a durable brass body, elastomer sealing (Silicone or Viton), and a wide operating temperature range from -65°F to 400°F, it meets ASME and CSA B51 certifications. Made in the USA, it offers reliable, non-adjustable pressure relief for professional-grade applications.

## Description

A soft seat safety relief valve typically uses an elastomer material, such as Silicone or Viton. The sealing material in the internals of the valve will depend on the compatibility of media flowing through the valve. This Safety Valve is NOT adjustable. This Safety Valve Is Preset at 35 PSI And Has a Flow Rate (SCFM) Of 39. Conrader safety valves are designed to protect unfired pressure vessels and systems from over pressure in compressed air and gas applications. The valves are not deemed "Lead Free". The soft seat safety valve (SRV-Series) has an elastomer seal. Set Pressure Tolerance: +2 psig up to and including 70 psig, +3% of set pressure greater than 70 psig. Operating Temperature Range: -65 degrees Fahrenheit to 400 degrees Fahrenheit. Materials of Construction: Seat, Cap, Piston: ASTM B16 Brass Spring: 17-7 Stainless Steel Seal: Silicone or Viton. Certifications: ASME Boiler & Pressure Vessel Code Section VIII Division 1 CSA B51 Boiler, Pressure, Vessel, and Pressure Piping Code

Review: Waste of money - This 35 psi blow off valve wouldn't even reach 5 psi before opening it was a complete waste of money

## Features

- This Brass Safety Valve Is Preset At 35 PSI And Has a Flow Rate (SCFM) Of 39
- This Safety Valve Is Made In The USA
- This Safety Valve Has An Operating Temperature Range of -65 Degrees Fahrenheit To 400 Degrees Fahrenheit
- Please Note 1/4" NPT Measures 0.540" Outside thread diameter in inches. See attached NPT Thread chart.
- Other Thread Sizes And PSI Options Are Available. Please Reach Out With Questions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B3Q8PPQ2 |
| Brand | PRO-EDGE INDUSTRIAL PNEUMATICS AND CONTROLS |
| Brand Name | PRO-EDGE INDUSTRIAL PNEUMATICS AND CONTROLS |
| Customer Reviews | 2.7 out of 5 stars 2 Reviews |
| Exterior Finish | Silicone |
| Exterior finish | Silicone |
| Inlet Connection Type | National Pipe Tapered |
| Inlet connection type | National Pipe Tapered |
| Item Dimensions | 18 x 18 x 44 millimeters |
| Item dimensions L x W x H | 18 x 18 x 44 millimeters |
| Manufacturer | Conrader |
| Manufacturer Part Number | SRV250-14 |
| Material | Brass |
| Material Type | Brass |
| Maximum Pressure | 35 Pound per Square Inch |
| Model Number | SRV250-14 |
| Number of Ports | 2 |
| Outlet Connection Size | 1/4" Inches |
| Outlet Connection Type | NPT THREAD |
| Outlet connection type | NPT THREAD |
| Specification Met | ASME |
| Unit Count | 1.0 Count |
| Valve Type | safety relief valve |

## Product Details

- **Brand:** PRO-EDGE INDUSTRIAL PNEUMATICS AND CONTROLS
- **Exterior finish:** Silicone
- **Inlet connection type:** National Pipe Tapered
- **Item dimensions L x W x H:** 18 x 18 x 44 millimeters
- **Material:** Brass

## Images

![Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM) - Image 1](https://m.media-amazon.com/images/I/61TRRmIQaZL.jpg)
![Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM) - Image 2](https://m.media-amazon.com/images/I/61TAjUouO9L.jpg)
![Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM) - Image 3](https://m.media-amazon.com/images/I/61Z5drsFHwL.jpg)
![Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM) - Image 4](https://m.media-amazon.com/images/I/71PWuUHlk1L.jpg)
![Brass, 1/4" NPT Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM) - Image 5](https://m.media-amazon.com/images/I/51BLSgZmLKL.jpg)

## Customer Reviews

### ⭐ Waste of money
*by M***N on 19 November 2025*

This 35 psi blow off valve wouldn't even reach 5 psi before opening it was a complete waste of money

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-14*