Ensure safe and controlled flow in your LP gas or bulk storage tank system with the Engineered Controls 3" Back Pressure Valve (MFG# A3196)—a heavy-duty industrial valve engineered for reliability and long service life.This valve is designed to protect container openings by ensuring flow is always directed into the vessel. Ideal for line applications where gas or liquid movement must be restricted to one direction, reducing the risk of backflow during filling or transfer operations.When paired with a compatible single-check filler valve, this back pressure valve forms a double-check filler configuration—perfect for commercial LP gas operations, bulk storage tanks, and industrial filling systems.Key Features3" NPT Connections – Female inlet, male outlet for universal compatibilityGenerous Internal Flow Channels – Provides low pressure drop even in high-volume applicationsHeavy-Duty Machined Steel Body – Built for demanding industrial LP environmentsSoft Synthetic Seat Disc – Ensures positive sealing and long service life4" Hex Flats – For easy wrench installation and service accessApplications✔ LP Gas Bulk Storage Tanks✔ Propane Delivery Systems✔ Industrial Filler Valve Setups✔ Backflow Protection in High-Volume Lines

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.