---
product_id: 3602793
title: "Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4\" Male NPT"
brand: "control devices"
price: "€ 33.29"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.fr/products/3602793-control-devices-cr25-100-cr25-cr-series-brass-pressure-relief
store_origin: FR
region: France
---

# 1/4" male NPT threaded inlet 0-100 psi adjustable range Brass & stainless steel corrosion resistance Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT

**Brand:** control devices
**Price:** € 33.29
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Master your pressure game with precision and durability!

## Quick Answers

- **What is this?** Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT by control devices
- **How much does it cost?** € 33.29 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/3602793-control-devices-cr25-100-cr25-cr-series-brass-pressure-relief)

## Best For

- control devices enthusiasts

## Why This Product

- Trusted control devices brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak-Proof Reliability:** Silicon O-ring guarantees a tight seal within 10% of set pressure, preventing costly leaks and downtime.
- • **Compact & Versatile Fit:** 1/4" male NPT threaded inlet fits seamlessly into a wide range of industrial and DIY applications.
- • **Smooth & Quiet Operation:** Engineered for silent, repeatable pressure relief—perfect for professional-grade air compressors and sensitive systems.
- • **Precision Pressure Control:** Micrometer-style nylon knob lets you dial in exact relief pressure from 0 to 100 psi for ultimate system safety.
- • **Durable Corrosion Resistance:** Brass body and stainless steel spring ensure long-lasting performance even in harsh environments up to 250°F.

## Overview

The Control Devices CR25-100 is a brass pressure relief valve featuring an adjustable 0-100 psi range, 1/4" male NPT inlet, and corrosion-resistant stainless steel spring. Designed for reliable, leak-proof pressure control in industrial and compressor applications, it offers smooth, quiet operation and precise adjustment via a micrometer-style knob.

## Description

This Control Devices CR25-100 pressure relief valve has a brass body, an adjustable relief pressure, a 1/4" male NPT threaded inlet connection, and a fluorocarbon O-ring. The valve's brass body, brass valve seat, and the stainless steel poppet resist corrosion and can be used in operating temperatures up to 250 degrees F. The valve can be adjusted to open between 0 and 100 psi using the micrometer-style nylon knob. This safety valve has an 6 standard cubic feet per minute (SCFM) flow rate and is suitable for low flow pressure relief applications such as in tankless air compressors.Relief valves remove excess pressure or vacuum from a system. The valve openings allow fluids or gases to escape to decrease pressure, and then close once the valve reaches the reseating pressure limit. They also relieve excess vacuum by opening to release a gas into the system and then closing after it reaches its low-pressure limit. Some relief valves have an adjustment mechanism to set the pressure where the valve opens, making it suitable for various applications. Relief valves are rated according to the volume of liquid or gas that can flow through them and the material that the valve is constructed from must be suitable for the fluid or gas, which may be corrosive or at an extreme temperature, in which it operates. Relief valves are used in a variety of applications, such as air compressors, petrochemical and chemical manufacturing, natural gas processing, and power generation.Control Devices manufactures valves and other flow control devices. The company, founded in 1963, is headquartered in Fenton, MO.

Review: Alternative to electric switch for tire compressor - I got this to add to my Viair 300 compressor which does not have any auto off switch. When changing tires, you need to be fairly quick about shutting it off at the pump or you risk burning it out. There are options to wire in a pressure switch or you can buy a pump with one built in. For a fraction of the price, I added this to a tee fitting and it works well to bleed off excess pressure without loading the pump. Time will tell, but so far so good.
Review: Smooth and repeatable - This is a well built pressure relief with an easy to adjust pressure set point. The scale you see is only a sticker and is questionable at best, but if you have a nice pressure gauge, you can dial in your set point really well. Opening and closing is smooth and quiet with overall functionality being excellent.

## Features

- Relief pressure adjustable from 0 to 100 psi
- 1/4" male NPT threaded inlet connection
- Brass construction and stainless steel spring for corrosion resistance
- Silicon O-ring provides leak-proof seal to within 10 percent of set pressure
- Micrometer-style nylon knob for pressure relief adjustment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007GDY3CU |
| Best Sellers Rank | #100,491 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #90 in Relief Valves |
| Brand | Control Devices |
| Date First Available | February 13, 2012 |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 0.25 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.39 ounces |
| Item model number | CR25-100 |
| Manufacturer | Control Devices |
| Material | Brass |
| Maximum Operating Pressure | 100 Pound per Square Inch |
| Number of Ports | 1 |
| Outlet Connection Size | 0.25 Inches |
| Outlet Connection Type | MNPT |
| Package Dimensions | 4.33 x 3.23 x 1.69 inches |
| Specification Met | UL, ULC |
| UPC | 372657518635 |

## Product Details

- **Brand:** Control Devices
- **Exterior Finish:** Stainless Steel
- **Inlet Connection Size:** 0.25 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Material:** Brass
- **Maximum Operating Pressure:** 100 Pound per Square Inch
- **Number of Ports:** 1
- **Outlet Connection Size:** 0.25 Inches
- **Outlet Connection Type:** MNPT
- **Specification Met:** UL, ULC

## Images

![Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT - Image 1](https://m.media-amazon.com/images/I/313HRKRepqL.jpg)
![Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT - Image 2](https://m.media-amazon.com/images/I/31qC7-I7c1L.jpg)
![Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT - Image 3](https://m.media-amazon.com/images/I/713OhItuiqL.jpg)
![Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT - Image 4](https://m.media-amazon.com/images/I/71zWihqvH-L.jpg)

## Questions & Answers

**Q: Anyone else have the problem where it releases all the pressure instead of resealing?**
A: Reseating is not an issue for me, but setting a reasonably accurate and consistent pressure is a problem. The release pressure varies significantly (when used as a pressure relief valve for tyre inflation).

**Q: Anyone had issues where it vents no matter what the pressure is set at? I'm testing it for a spunding valve with an inlet pressure of 15psi**
A: I just got one to to make a spunding valve for beer.  Mine leaks a little at all pressures.  I connected to a keg and my gauge was reading 15 PSI.  It gradually lost pressure.  Gas coming out the small holes.  I suspect I will have to return this one and hope the next one works.

**Q: How does this work in the 2-4 PSI range?**
A: Not great I think you better off getting something with narrower range device like 0-10 psi

**Q: Is the reseat pressure adjustable on this as well, I'm needing it to crack at 100psi and reseat at 85-90psi, No lower. other don't reseat till 60psi**
A: The reseat is not adjustable. It will reseat on its on around those pressures but it is not a controllable parameter.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Alternative to electric switch for tire compressor
*by S***. on February 18, 2025*

I got this to add to my Viair 300 compressor which does not have any auto off switch. When changing tires, you need to be fairly quick about shutting it off at the pump or you risk burning it out. There are options to wire in a pressure switch or you can buy a pump with one built in. For a fraction of the price, I added this to a tee fitting and it works well to bleed off excess pressure without loading the pump. Time will tell, but so far so good.

### ⭐⭐⭐⭐⭐ Smooth and repeatable
*by D***D on September 20, 2024*

This is a well built pressure relief with an easy to adjust pressure set point. The scale you see is only a sticker and is questionable at best, but if you have a nice pressure gauge, you can dial in your set point really well. Opening and closing is smooth and quiet with overall functionality being excellent.

### ⭐⭐⭐⭐ it works pretty cool so far for what I use it for
*by J***A on March 16, 2016*

It relieves a fair amount of pressure. I believe more expensive valves relieve more pressure if that is what you need. Overall, it works pretty cool so far for what I use it for. Ignore the numbers used for measuring on this item. It's only there to make the item more attractive to buy. I had to buy a nut for mine in order to install it, which wasn't very hard. I use mine along with a pressure gauge on a homemade low pressure 55 gal steel sterilizing/pasteurizing drum. I never allow the tank to exceed 2 psi. I use this item basically to begin relieving pressure when the pressure reaches 1-1.5 psi. I adjust it according to my pressure gauge. It is most useful to me really in that it is an alarm for me to turn the propane down or open more wide the main relief valve. And I'm sure it helps prevent the psi from exceeding the point that it is set at. I do believe that if I turned the propane all the way up that this pressure relief valve would not be able to prevent my tank from exceeding the 2 psi that I am able to set it at. This is not a proven fact because I have not tested it. I'm just judging by the amount of pressure that this valve actually relieves. It relieves enough pressure that I don't try to find a better relief valve. But if I wanted to be perfectly safe i would wish for a valve that relieves more pressure so that to be sure that it would be impossible to exceed the 2 psi mark that I can set it at using this valve.

## Frequently Bought Together

- Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT
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- Anderson Metals 56101-04 Brass Pipe Fitting, Barstock Tee, 1/4" x 1/4" x 1/4" NPT Female Pipe

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-31*