Blackmer 453077 LGL1 1/4″ Relief Valve for Propane LP Gas Systems

SKU: 453077

Weight	2 lbs
Dimensions	8 × 8 × 8 in

$173.56

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	$173.56	0%
5–9	$164.88	5%
10+	$156.20	10%

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Blackmer 453077 LGL1 1/4″ Relief Valve for Propane LP Gas Systems

Specifications & product details

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

For pump or compressor service parts, the equipment model and revision are the starting point for a reliable match.

Product type	Pump and compressor service parts
Part / SKU	453077

What to check before ordering

Compare the complete host-equipment identification with the applicable parts drawing.
Check the material and seal configuration, and whether the listing supplies one part, a kit or a rotating assembly.
Use the matching service instructions for clearances, seal work and reassembly checks.

Service reminder: A shared diagram or family name does not establish fit across every model. Confirm the individual part reference for your equipment.

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

Blackmer installation, operation and maintenance manuals

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Overview

Blackmer OEM 1/4″ Relief Valve – MFG# 453077 (Model LGL1)This Blackmer 453077 LGL1 1/4″ Relief Valve is a genuine OEM component designed for use in industrial propane, LP gas, and natural gas systems. Built to Blackmer’s strict manufacturing standards, this valve provides dependable over-pressure protection in fuel transfer and pumping applications.

The compact, precision-machined design allows for easy integration into existing systems while maintaining reliable pressure control. Ideal for use in commercial and industrial gas handling equipment where safety and performance are critical.

Key Features & Benefits

OEM Blackmer replacement part1/4″ NPT connection for industry-standard compatibility
Designed for propane, LP gas, and industrial gas systems
Precision-machined for consistent performanceHelps protect pumps, piping, and equipment from over-pressure conditionsCommon

Applications

Propane & LP gas transfer systems
Industrial fuel handling equipmentGas pumping and pressure management systemsIf you’re maintaining or servicing Blackmer equipment, this relief valve ensures proper system protection and long-term reliability.

Product details

Part / SKU	453077

Package includes

Blackmer 453077 LGL1 1/4″ Relief Valve for Propane LP Gas Systems

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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