Engineered Controls 3127P Hydrostatic Relief Valve 1/4″ M NPT Brass 300 PSI LP G

SKU: 3127P

Weight	1.5 lbs
Dimensions	8 × 8 × 8 in

$56.74

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$56.74	0%
5–9	$53.90	5%
10+	$51.07	10%

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Engineered Controls 3127P Hydrostatic Relief Valve 1/4" M NPT Brass 300 PSI LP G

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	3127P

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

The Engineered Controls MFG# 3127P External Hydrostatic Relief Valve is specifically engineered for safety in propane, LP gas, natural gas ONLY systems. With a 1/4" M NPT connection and 300 PSI start-to-discharge rating, this precision-machined brass valve protects piping and shut-off valves from the dangers of trapped liquid, preventing overpressure conditions.

Key Benefits:Reliable Safety: Designed to automatically reseat firmly after discharge.

Bubble-Tight Seal: Resilient seat disc ensures no leakage under normal conditions.

Durable Construction: High-quality brass body for corrosion resistance and long service life.

Versatile Use: Fits pipelines, hoses, or RegO shut-off valve side boss applications.

Gas Compatibility: Suitable for LP gas, natural gas ONLY

Applications

Perfect for industrial bulk plant operations, propane transport systems, and stationary LP gas storage where piping protection is critical. Commonly installed between shut-off valves or in vent piping configurations.

Product details

Part / SKU	3127P

Package includes

Engineered Controls 3127P Hydrostatic Relief Valve 1/4" M NPT Brass 300 PSI LP G

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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