---
product_id: 733484155
title: "Brass, 1/4\" NPT Industrial Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM)"
brand: "pro-edge industrial pneumatics and controls"
price: "€ 22.18"
currency: EUR
in_stock: true
reviews_count: 3
category: "Pro Edge Industrial Pneumatics And Controls"
url: https://www.desertcart.sk/products/733484155-brass-1-4-npt-industrial-soft-seat-safety-pressure-relief
store_origin: SK
region: Slovakia
---

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

**Brand:** pro-edge industrial pneumatics and controls
**Price:** € 22.18
**Availability:** ✅ In Stock

## Summary

> 🛡️ Secure your system with precision-crafted pressure relief!

## Quick Answers

- **What is this?** Brass, 1/4" NPT Industrial 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?** € 22.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/733484155-brass-1-4-npt-industrial-soft-seat-safety-pressure-relief)

## 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

- • **Soft Seat Seal Technology:** Elastomer seal (Silicone/Viton) guarantees leak-tight reliability
- • **Premium Brass Construction:** Durable ASTM B16 brass body ensures long-lasting performance
- • **Precision-Engineered Safety:** Preset at 35 PSI for reliable overpressure protection
- • **Wide Temperature Resilience:** Operates flawlessly from -65°F to 400°F, built for extremes
- • **Certified Industrial Standard:** Meets ASME & CSA B51 codes for trusted safety compliance

## Overview

This 1/4" NPT brass 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. Made in the USA with premium brass and elastomer soft seat seals, it operates reliably across a wide temperature range (-65°F to 400°F) and meets rigorous ASME and CSA safety standards.

## 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
Review: It works well

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #116,673 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #102 in Relief Valves |
| Brand | PRO-EDGE INDUSTRIAL PNEUMATICS AND CONTROLS |
| Customer Reviews | 3.6 3.6 out of 5 stars (6) |
| Date First Available | June 2, 2022 |
| Exterior Finish | Silicone |
| Finish | Brass |
| Inlet Connection Type | National Pipe Tapered |
| Installation Method | Screw-In |
| Item Package Quantity | 1 |
| Item Weight | 2.46 ounces |
| Item dimensions L x W x H | 0.69 x 0.69 x 1.75 inches |
| Item model number | SRV250-14 |
| Manufacturer | Conrader |
| Material | Brass |
| Maximum Operating Pressure | 35 Pound per Square Inch |
| Number of Ports | 2 |
| Outlet Connection Size | 1/4" Inches |
| Outlet Connection Type | NPT THREAD |
| Part Number | SRV250-14 |
| Product Dimensions | 0.69 x 0.69 x 1.75 inches |
| Size | 1/4 inches |
| Specification Met | ASME |
| Style | 35 PSI / 39 SCFM |

## 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:** 0.69 x 0.69 x 1.75 inches
- **Material:** Brass
- **Maximum Operating Pressure:** 35 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 1/4" Inches
- **Outlet Connection Type:** NPT THREAD
- **Specification Met:** ASME

## Images

![Brass, 1/4" NPT Industrial 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)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

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

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

### ⭐⭐⭐⭐⭐ Review
*by G***. on December 13, 2025*

It works well

### ⭐⭐⭐⭐⭐ Review
*by T***E on January 11, 2024*

Accurately made, easy to install. Tks.

## Frequently Bought Together

- Brass, 1/4" NPT Industrial Soft Seat Safety Pressure Relief Valve, Made In The USA (35 PSI / 39 SCFM)
- MEASUREMAN 2-1/2inch Dial Size, Liquid Filled Pressure Gauge, 0-60psi/kpa, 304 Stainless Steel Case, 1/4inNPT Lower Mount
- SENCTRL 0-30 PSI Glycerin Liquid Filled Low Pressure Gauge, 2.5" Dial Size, 1/4 NPT, Stainless Steel Case, Lower Mount, for Water Oil Air Pressure Test

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/733484155-brass-1-4-npt-industrial-soft-seat-safety-pressure-relief](https://www.desertcart.sk/products/733484155-brass-1-4-npt-industrial-soft-seat-safety-pressure-relief)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-17*