MEC MEH50/460 1/2” MNPT Hydrostatic Relief Valve 460 PSI Propane

Brand: MEC Marshall Excelsior|SKU: MEH50/460

Dimensions	8 × 8 × 8 in

$88.66

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	$88.66	0%
5–9	$84.23	5%
10+	$79.79	10%

Estimate for this quantity before shipping. Tax display follows store settings. Existing cart quantities can increase the tier. Only one offer applies; a coupon replaces automatic pricing. For 20+ units, contact support for a quote.

Available to order.

Bulk quantity & quote

Quantity needed

Enter the total quantity you need. We will confirm availability and a quote before you order.

Need a firm ship date? Availability may include supplier stock. Confirm availability before ordering for time-sensitive work.

MEC MEH50/460 1/2” MNPT Hydrostatic Relief Valve 460 PSI Propane

Specifications & product details

MEC Marshall Excelsior MEH50/460 1/2″ MNPT Hydrostatic Relief Valve – 460 PSI

Protect your propane or industrial piping system from excessive hydrostatic pressure with the genuine MEC Marshall Excelsior MEH50/460 Hydrostatic Relief Valve. This premium brass relief valve is factory preset to open at 460 PSI, helping safeguard piping, hoses, and equipment against pressure build-up caused by thermal expansion.

Manufactured by Marshall Excelsior Company (MEC), this valve is engineered for durability and dependable performance in propane, LP gas, and industrial fluid systems.

Features

Genuine MEC Marshall Excelsior product
Model: MEH50/460
Factory preset relief pressure: 460 PSI
Heavy-duty brass construction
1/2″ Male NPT connection
Corrosion-resistant design
Yellow protective cap
Precision manufactured for reliable operation
Long service life
Easy installation

Applications

Propane (LP Gas) systems
Hydrostatic pressure protection
Industrial gas piping
LPG transfer systems
Bulk storage tanks
Fuel gas distribution
Commercial gas equipment
Agricultural propane systems

Package Includes

(1) MEC MEH50/460 Hydrostatic Relief Valve
Protective cap installed

Product details

Part / SKU	MEH50/460

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

Availability may include our inventory and supplier sources. Listed stock does not by itself confirm immediate dispatch. Ask us to confirm a ship date before ordering for time-sensitive work.

Shipping methods and charges appear at checkout where available. Freight, oversized and specially handled items may require a quote. See our Shipping Policy for processing periods, restrictions and delivery information.