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Engineered Controls LP Gas 1st Stage Regulator POL x 1/2″ FNPT MFG# LV3403TR9

SKU: LV3403TR9

$131.30

In stock

Same-item volume pricing
QuantityUnit priceSaving
1–4$131.300%
5–9$124.745%
10+$118.1710%

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Available to order: 30.

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REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

Start your regulator selection at the tank: the first stage supplies the intermediate pressure needed by a separate downstream regulator.

Product type First-stage LP gas regulators
Part / SKU LV3403TR9
Inlet connection Female POL
Outlet connection 1/2 in. female NPT
Factory delivery 10 PSIG
Bonnet vent Over outlet
Propane vapor capacity 1,500,000 BTU/hr; rating conditions: inlet 20 PSI above setting, delivery 20% below setting

What to check before ordering

  • Identify the required intermediate outlet pressure and the inlet conditions for this stage.
  • Compare the connected appliance load with the capacity published for the same inlet and delivery conditions.
  • Ask your gas installer to confirm the vent position, weather protection and commissioning checks before installation.

Service reminder: Include vent condition in routine service. Debris, insects, snow or water can obstruct it; any vent extension must follow the model instructions. Replace a regulator that has been submerged.

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

Engineered Controls Compact High Pressure First Stage LP Gas RegulatorMFG# LV3403TR9 | F. POL Inlet x 1/2″ FNPT Outlet | 10 PSIG | 1,500,000 BTU/hThe Engineered Controls LV3403TR9 is a compact, high-performance first stage regulator designed for use with ASME or DOT propane cylinders. With a factory delivery pressure of 10 PSIG and vapor capacity of 1,500,000 BTU/hr, this regulator is ideal for high-demand residential or light commercial LP gas systems.It features a female POL inlet and 1/2″ FNPT outlet, and its non-adjustable internal design ensures reliable performance and minimal maintenance. The bonnet vent is positioned over the outlet and is threaded 3/8″ FNPT for vent piping, allowing for safe underground installations without extra glue kits or adapters.This model meets NFPA 58 requirements with a built-in relief valve and travel stop, and incorporates RegO’s U.S.-made sealing system for dependable long-term use.Specs at a Glance:Inlet: F. POLOutlet: 1/2″ FNPTOrifice: 1/4″Vapor Capacity: 1,500,000 BTU/hrFactory Pressure: 10 PSIGBonnet Vent: Over Outlet (3/8″ FNPT thread)Body Color: Red (powder-coated)Regulator Type: First Stage, Non-AdjustableMounting: Compact – Ideal for tight installationsUse: Propane tanks, DOT cylinders, ASME vessels

Product details

Part / SKU LV3403TR9

Package includes

  • Engineered Controls LP Gas 1st Stage Regulator POL x 1/2" FNPT MFG# LV3403TR9

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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