Engineered Controls 375 PSI 1/4″ M NPT Hydrostatic Relief Valve Brass DOT

SKU: 3127K

Weight	1.5 lbs
Dimensions	8 × 8 × 8 in

$56.47

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Quantity	Unit price	Saving
1–4	$56.47	0%
5–9	$53.65	5%
10+	$50.82	10%

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Engineered Controls 375 PSI 1/4" M NPT Hydrostatic Relief Valve Brass DOT

Specifications & product details

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

Where liquid can become trapped in a piping section, hydrostatic relief selection depends on that section’s service and pressure requirements.

Product type	Hydrostatic relief valves
Part / SKU	3127K

What to check before ordering

Compare the valve’s medium, pressure setting and connection with the protected section.
Have the system designer establish the installation point and discharge arrangement.
Use the replacement and fitting instructions supplied for the exact valve model.

Service reminder: Order for the equipment being protected. A hydrostatic line-relief valve is not a substitute for the tank’s relief valve.

Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.

Product help & manufacturer resources

Explore this product guide · Shop this product group · Ask Regions Supply about this part

Overview

Engineered Controls Hydrostatic Relief Valve – 375 PSI | 1/4" M. NPT | Brass | MFG# 3127KThis professional-grade external hydrostatic relief valve is designed for use on DOT cylinders, as well as ASME-rated above-ground and underground storage tanks. Its brass construction and 1/4" M. NPT male thread make it an ideal fit for LP gas, propane, or natural gas systems requiring supplementary overpressure protection.✅

Key Features

375 PSIG set pressure with pop-action discharge to minimize product loss.
Bubble-tight seal using a resilient seat disc ensures leak-free performance.
Automatic reset after pressure normalization for continuous safety.
Constructed from non-corrosive machined brass.
Height: 1-31/32" | Hex
Size: 7/8"🛠

Applications

Hydrostatic pressure relief on DOT cylinders.
Secondary overpressure protection on LP & propane containers ONLY.Installed on systems where working components are outside the tank, making them accessible yet needing protection from damage.
This valve is an excellent fit for industrial gas installations, mobile propane services, or backup safety systems for underground LPG tanks.

Product details

Part / SKU	3127K

Package includes

Engineered Controls 375 PSI 1/4" M NPT Hydrostatic Relief Valve Brass DOT

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

Compatibility & part-number help

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Shipping & availability

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