Engineered Controls SS8021U Hydrostatic Relief Valve 1/4″ MNPT Stainless 450 PSI

SKU: SS8021U

Weight	1.5 lbs
Dimensions	8 × 8 × 8 in

$122.35

In stock — available to order.

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Same-item volume pricing

Quantity	Unit price	Saving
1–4	$122.35	0%
5–9	$116.23	5%
10+	$110.12	10%

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Engineered Controls SS8021U Hydrostatic Relief Valve 1/4" MNPT Stainless 450 PSI

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	SS8021U

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 SS8021U External Hydrostatic Relief Valve is built for heavy-duty industrial safety in LP gas and anhydrous ammonia systems. Designed for areas where liquid may become trapped between shut-off valves, this valve quickly discharges at 450 PSI to prevent hazardous overpressure, then automatically reseats to maintain a leak-free seal.Key

Specifications

Set Pressure: 450 PSIHeight: 1-3/8″Connection: 1/4″ M NPTValve Body Material: Stainless SteelWrench Hex Section: 11/16″Benefits:Stainless steel construction for superior corrosion resistance in harsh environmentsBubble-tight seal ensures minimal product lossCompatible with vent piping attachment when requiredCompact design for easy installation in tight spacesIdeal for bulk plant piping, industrial LP systems, and ammonia transfer operationsThis hydrostatic relief valve meets rigorous industrial safety standards, ensuring long service life and dependable performance under high-pressure conditions.

Product details

Part / SKU	SS8021U

Package includes

Engineered Controls SS8021U Hydrostatic Relief Valve 1/4" MNPT Stainless 450 PSI

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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