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GRUVLOK 4 in x 2 1/2 in Grooved x Threaded Concentric Reducer, 3 in Length - Grooved Pipe Fittings
GRUVLOKGrooved Pipe Fittings

GRUVLOK 4 in x 2 1/2 in Grooved x Threaded Concentric Reducer, 3 in Length

The GRUVLOK Metal Pipe Elbow is a concentric reducer grooved pipe fitting, sized 4 in x 2 1/2 in with a Grooved x Threaded connection and 3 in length (MPN 0390138139). This component is designed for industrial piping…

SKU 3G-OTH-460589

Brand
GRUVLOK
Item
4 in x 2 1/2 in Grooved x Threaded Concentric Reducer, 3 in Length
Part Number
0390138139
Category
Grooved Pipe Fittings
Available to Order
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Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390138139
Type
4 in x 2 1/2 in, Grooved x Threaded
Lg
3 in

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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Metal Pipe Elbow is a concentric reducer grooved pipe fitting, sized 4 in x 2 1/2 in with a Grooved x Threaded connection and 3 in length (MPN 0390138139). This component is designed for industrial piping systems requiring a reduction in diameter while maintaining flow direction.

Frequently Asked Questions

What is a GRUVLOK concentric reducer used for?

A GRUVLOK concentric reducer connects pipes of different diameters in industrial piping systems, reducing flow from 4 in to 2 1/2 in while maintaining direction. It is commonly used in HVAC, fire protection, and process piping where grooved and threaded connections are required.

What are the specifications of the GRUVLOK 0390138139?

The GRUVLOK 0390138139 is a metal pipe elbow concentric reducer with a 4 in x 2 1/2 in size, grooved x threaded connection, and 3 in length. It is a grooved pipe fitting designed for reducing diameter in industrial piping systems.

Where to buy GRUVLOK pipe fittings in worldwide?

3G Electric supplies GRUVLOK pipe fittings worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver genuine GRUVLOK components like the 0390138139 concentric reducer to any location.

How to install a GRUVLOK grooved x threaded reducer?

Installation requires aligning the grooved end with a compatible coupling and tightening bolts to the manufacturer's torque spec. The threaded end should be sealed with pipe thread compound and hand-tightened plus one to two turns. Always follow GRUVLOK's published installation instructions for proper joint integrity.

Used in

Common applications for GRUVLOK
Fire protection systems — GRUVLOK grooved couplings and fittings for joining sprinkler pipe, such as the 6-inch coupling (SKU 46KK70) rated for 300 psi.
HVAC piping — GRUVLOK flexible couplings (e.g., SKU 408JM0) to accommodate thermal movement in chilled water and heating systems.
Process piping — GRUVLOK concentric reducer elbow (SKU 408GX7) for changing pipe direction and size in chemical and industrial processes.
Industrial piping — GRUVLOK high-pressure couplings (e.g., SKU 408HF6) rated to 1,000 psi for demanding applications.
Mechanical piping systems — GRUVLOK rigid couplings (e.g., SKU 60XP12) for joining large-diameter pipe in water distribution.
Plumbing systems — GRUVLOK NSF 61 approved couplings for potable water applications, ensuring compliance with health standards.
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GRUVLOK Products

3G Electric supplies GRUVLOK grooved pipe fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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