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Engineered Controls 1st Stage Regulator 1/4″ x 1/2″ NPT LV3403TRV9 1.5M BTU LPG

SKU: LV3403TRV9

$104.40

In stock

Same-item volume pricing
QuantityUnit priceSaving
1–4$104.400%
5–9$99.185%
10+$93.9610%

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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 LV3403TRV9
Inlet connection 1/4 in. female NPT
Outlet connection 1/2 in. female NPT
Factory delivery 10 PSIG
Bonnet vent Opposite gauge port
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

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Overview

Engineered Controls Compact High Pressure First Stage Regulator – MFG# LV3403TRV9This LV3403TRV9 compact first stage regulator by Engineered Controls is ideal for reducing tank pressure to an intermediate 10 PSI in propane (LPG) systems. It’s factory-set and non-adjustable, making it perfect for residential and light commercial propane installations using ASME or DOT containers.

Featuring a compact body, this regulator delivers a maximum of 1,500,000 BTU/hr through 1/4" F. NPT inlet and 1/2" F. NPT outlet ports. The 9 o'clock bonnet vent position ensures proper venting orientation and allows compatibility with wall or post-mounted applications.🔧

Specifications

  • Inlet: 1/4" F. NPTOutlet: 1/2" F. NPTOrifice: 1/4"
  • Factory Set
  • Pressure: 10 PSIVapor
  • Capacity: 1.5M BTU/hrBonnet Vent: 9 o'clock position
  • Material: Cast Aluminum
  • Color: Red✅

Ideal For

  • DOT cylinder fillingTwo-stage propane systemsRego 7901TB shut-off valves or second-stage regulators

Product details

Part / SKU LV3403TRV9

Package includes

  • Engineered Controls 1st Stage Regulator 1/4" x 1/2" NPT LV3403TRV9 1.5M BTU LPG

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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