Best Brass Relief Valves in 2026

1/4" NPT 165 PSI Industrial air compressor / tank pressure safety relief valve.

Also known as a "Pop Off" or "Blow Off" valve.

This relief valve is manufactured in the United States and is stamped with "UV" & "NB" symbols.

CASH ACME RELIEF VALVE: Cash Acme NCLX Combination Temperature and Pressure Relief Valves are designed for the protection of water heaters and storage tanks; incorporate an inert thermal element coating that provides effective isolation from mineral deposits (liming) and galvanic corrosion

DESIGN: The NCLX Series relief valves feature a cast bronze body, brass, and stainless steel internal parts, silicone seat disc, and stainless steel pressure spring

COMPACT: Pressure-reducing and regulating valves

2 Spool with Joystick Control, 11 GPM Flow, 3625 Max PSI

All spools are standard double acting with spring return to neutral position which are ideal for double acting cylinders

Used for open center systems (Pump to Tank Flow)

Relief pressure preset to 125 psi with flow rate of 116 cfm

1/4" male NPT threaded inlet connection

Brass construction and stainless steel spring for corrosion resistance

PLEASE NOTE: 1/4" MALE NPT THREADED INLET CONNECTION APPROX 0.54 INCHES OUTSIDE DIAMETER

Brass construction and stainless steel spring for corrosion resistance. The preset relief pressure is accurate to within +/- 3 percent and a silicon O-ring provides a leak-proof seal to within +/- 10 percent of the relief pressure.

250 degrees F maximum temperature for use in high temperature applications

Pressure relief valves are for protection against excessive pressure

3/4 in. male NPT x 1/2 in. female FPT

Lead free brass with stainless steel control springs

2 Spools Monoblock for double acting cylinders

13 GPM Flow (50L) pump-to-tank

OPEN CENTER 4-way 3 position Tandem Spring Center

💖[Hydraulic 1 Spool Valve] - Equipped with 1 spool and G1/2" type inlet/outletports. Maximum pressure of this hydraulic is 3600 PSI, and maximum flow can reach 11 GPM. Widely used in small tractors, tractor loaders,log diverters and other machinery.

💖[Spring Return] - All slide valves are equipped with spring return, which can be reset to the neutral position with a slight shaking, which is easy to operate and convenient.

💖[Double Acting] - Our hydraulic control valve is used to operate double-acting cylinders, which will be more convenient and practical when you use it.

Modified Item: No

Mpn: 23120-3/4-PP

Custom Bundle: No

Double Acting - 2 Spools monoblock for double acting cylinders.

Durable Quality - This hydraulic directional control valve comes with 2 spool, with cast iron construction for long-time use.

Features - Open Center 4-way 3 position Tandem Spring Center.

Widely Used: Comes with 2 spool and #8 BSPP in/out ports, with cast iron construction for long-time use

Double Acting: Hydraulic control valve for operating double acting cylinders.

Spring Return: All spools standard come with spring return, which can return to the neutral position.

Guards against excessive pressure in water, oil or air systems used in commercial, residential or industrial applications, including fire protection systems

All-brass construction features an NPT threaded male inlet and NPT threaded female (drain) outlet connections; a stainless-steel spring; a brass bonnet; a Buna-N disc and a Buna-N O-ring

Calibrated adjustment feature sets valve to the required relief pressure

【FITMENT】 - 100% Brand new, brand guarantee, bear any after-sales problems. Heater Control Valve .Replacing OE numbers are AA5Z-9U465-A

【QUALITY】 - Each Turbo Turbocharger Intercooler-Valve is manufactured to the same specifications as the factory actuators. Each actuator is constructed with precision machined parts and includes new oil seals for a leak free installation. Standard performance & durability TS16949 Certified Manufacturer.

【FUNCTION】 - Turbo Turbocharger Intercooler-Valve ，Turbo Turbocharger Cut Off Bypass Blow Off Valve fit

SPECIFICATIONS: This log splitter hydraulic flow control valve has a 2-spool, 3-way construction with a processing rate of 18 GPM, ¾” NPT inlet and outlet ports, ½” NPT work ports, and withstands 3625 PSI pressure. It weighs only 5 lb (2.26 kg).

POWER PACKED: With a processing rate of 18 GPM, the hydraulic valve log splitter is way more powerful and efficient than normally available options. This log splitter valve with one spool can split heavy, dense logs in minimal time.

HIGH TOLERANCE: This wood splitter valve control with a hydraulic relief valve tolerates pressure up to 3625 PSI. This prevents internal damage to the hydraulic valve handle even when it is being used to exert intense pressure.

247Garden CO2 Regulator w/Solenoid Valve 110V, Forged Brass Body, Nylon Washer, 4000 PSI Pressure Gauge, 0.5-15 SCFH Compatiable for Indoor Gardening & Hydroponics, Beer & Wine Kegs Brewing

Forged brass body and bonnet for maximum strength with 4000 PSI pressure gauge.

Safety relief valve is set for safe operation

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

SPECIFICATIONS: The Chief P40 manual Directional Control Valve for hydraulic systems has a 4 way, 3 pos tandem center with 10 GPM, maximum working pressure of 3625 PSI, temperature of 176°F, standard SAE 8/10 inlet/outlet ports. It weighs 9.4 lb.

FAST ACTING: Our 4 way hydraulic control valve has 4 ports that facilitate super fast extension and retraction of double-acting hydraulic cylinders, producing sufficient pressure required in a wide range of applications.

PRECISE: This directional control valve hydraulic has a two spool construction equipped with lands and undercuts. The precision machined construction allows the spools to open and close fluid flow paths effortlessly with high accuracy every time.

This Brass Safety Valve Is Preset At 110 PSI And Has a Flow Rate (SCFM) Of 100

This Safety Valve Is Made In The USA

This Safety Valve Has An Operating Temperature Range of -65 Degrees Fahrenheit To 400 Degrees Fahrenheit

Nominal flow: 13gpm (60L/min); Relief valve: Adjustable; Center system: Open; A, B ports: 1/2 BSPP; P, T, N port: 1/2 BSPP.

High-Efficiency: The relief valve range is up to 3600 PSI and the maximum flow is up to 13 GPM.

Inner check valve: The check valve inside the valve body is to insure the hydraulic oil not to be returned.

High Efficiency: The relief valve range is up to 3000 PSI and the maximum flow is up to 25 GPM.

Inner check valve: The check valve inside the valve body is to insure the hydraulic oil not to be returned.

Inner relief valve: The relief valve inside the valve body is able to adjust the hydraulic system working pressure.

Durable Quality - The hydraulic directional control valve is of cast iron structure, which is not easy to be damaged and has a long service life

High Efficiency - The relief valve range is up to 3600 PSI and the maximum flow is up to 21 GPM.

Double Acting - Hydraulic control valve for operating double acting cylinders.

1/2" Pressure Relief Valve

Perfect For Thermal Expansion Relief

Calibrated Adjustments From 25 To 175 Psi

<b>Price For:</b> Each <b>Inlet Type</b>: MNPT <b>Temp. Range</b>: 0 Degrees to 180 Degrees F <b>Outlet Size</b>: 1/2" <b>Spring Material</b>: Stainless Steel <b>Overall Height</b>: 3" <b>Disc Material</b>: Buna-N <b>Application</b>: Fire Protection Systems <b>Pressure Range</b>: 50 to 175 psi <b>Overall Length</b>: 1-5/8" <b>Body Material</b>: Brass <b>Standards</b>: ANSI Z21.22 <b>Outlet Type</b>: FNPT <b>Test Lever</b>: No <b>Factory Set Pressure</b>: 175 psi

<b>Inlet Size</b>: 3/4" <b>Seat Material</b>: Buna-N <b>Item</b>: Calibrated Adjustable Relief Valve <b>Item</b>: Calibrated Adjustable Relief Valve <b>Pressure Range</b>: 50 to 175 psi <b>Standards</b>: ANSI Z21.22 <b>Country of Origin (subject to change)</b>: United States

HIGH PRESSURE RESISTANCE: This pressure reducer can withstand pressure of 1.6Mpa , suit for many situation, can be widely used.

NO BYPASS PIPE NEEDED: No bypass pipe required, and the distribution pipe is simple, which can save a lot of space and distribution cost.

WIDE APPLICATIONS: This relief valve can be installed in front of most tap water equipment, can be used for home, buildings, factories, widely used.

5 Spool, 21 GPM Flow, 3625 Max PSI

All spools are standard double acting with spring return to neutral position which are ideal for double acting cylinders

Used for open center systems (Pump to Tank Flow)

[APPLICATION] Designed for open center system, and suitable for log splitters, tractors loaders, tanks, small tractors, and etc.

[FUNCTION] Used to raise and lower the laoder, and dump and retract the bucket. The hydraulic lever supports automatic reset.

[PROPERTIES] The P & T Ports feature 7/8-14 UNF (SAE #10) oil ports, while A & B Ports feature 3/4-14 UNF (SAE #8) oil ports.

1/8" BRASS SAFETY RELIEF VALVE FOR COMPRESSED AIR SYSTEMS, 75 PSI AND 37 CFM

ALSO KNOWN AS A "BLOW OFF" OR "POP OFF" VALVE

THIS VALVE IS MADE IN THE USA AND IS STAMPED WITH "UV" AND "NB" SYMBOLS

Exquisite workmanship, safe and reliable, stable performance, is an excellent sprayer accessories.

All finishes are non‑ and safe to use, easy to install and disassemble, and have a long service life.

The old or damaged valve can be replaced perfectly, and the working efficiency of sprayer can be improved.

Preset at 150 PSI And Has a Flow Rate (SCFM) Of 129

This Safety Valve Is Made In The USA

This Safety Valve Has An Operating Temperature Range of -65 Degrees Fahrenheit To 400 Degrees Fahrenheit

Durable Quality - The hydraulic directional control valve is of high tensile strength cast iron monolithic construction, durable for long service life, stable and reliable performance.

Peculiarity - Equipped with 2 spools 25 GPM hydraulic control valve has the characteristics of small volume, large flow and stable operation. Come with 2 spools and 1/2 BSPP type ring inlet/outlet port.

Inner Check - Hydraulic control valves are used to operate double acting cylinders. All standard spools are spring-returned and can be reset to the neutral position. The check valve inside the valve body is to ensure the hydraulic oil not to be returned.