Sporlan 903031P Pressure Control

LAC-4-100 1/2"ODF 100# CONTROL

Sporlan 903031P Pressure Control Valve (Parker Sporlan LAC-4-100)

The Sporlan 903031P Pressure Control Valve, manufactured by Parker Sporlan, is a dependable LAC series low ambient pressure control valve designed to regulate refrigerant flow and maintain proper system pressure in refrigeration and air conditioning applications. The LAC-4-100 model is factory set, non-adjustable, and engineered to deliver consistent performance, making it an essential component for commercial and industrial HVACR systems.

This valve limits refrigerant flow from the condenser while regulating the bypass of hot gas around the condenser to the receiver during low ambient conditions. By maintaining proper liquid line pressure, it helps protect system components, improve efficiency, and ensure stable operation.

Key Features & Benefits

• Model: LAC-4-100

• Manufacturer: Parker Sporlan

• Part Number: 903031P

• Non-adjustable, factory-set design for reliable pressure control

• Brass body with copper ODF connections for durability and long service life

• Highly sensitive diaphragm for fast response to pressure changes

• Minimizes pressure drop to maximize system efficiency

• Factory tested to ensure leak-free performance

• Compact design for easy installation in space-constrained systems

Technical Specifications

• Valve Type: LAC-4

• Pressure Rating: 100 PSI

• Connection Size: 1/2" ODF (Outside Diameter Flare)

• Connection Style: 1/2" ODF

• Application Type: Pressure Control / Low Ambient Control

• Construction: Brass body with copper connections

Applications

• Industrial Refrigeration Systems

• Commercial Refrigeration: coolers, freezers, walk-in units

• Air Conditioning Systems with remote condensers

• Low ambient temperature applications requiring stable liquid line pressure

Product Overview

The Parker Sporlan LAC-4-100 Pressure Control Valve (903031P) is designed to deliver precise, dependable refrigerant pressure regulation in demanding environments. Its rugged construction, responsive diaphragm, and proven Sporlan engineering help prevent over-pressurization, reduce energy consumption, and extend system life. This makes it a trusted solution for HVACR professionals seeking efficiency, reliability, and long-term performance.