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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling, 6 in x 6 in, Ductile Iron, NBR Seal, 700 psi

The GRUVLOK Rigid Coupling is a rigid bolted-clamp grooved pipe coupling, available in a 6 in x 6 in ductile-iron configuration with an NBR seal and a maximum operating pressure of 700 psi (MPN 390213264). 3G…

SKU 3G-OTH-468312

Brand
GRUVLOK
Item
Rigid Coupling, 6 in x 6 in, Ductile Iron, NBR Seal, 700 psi
Part Number
390213264
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
390213264
Type
6 in x 6 in, Ductile Iron, NBR Seal, 700 psi
Fitting Pipe Size
6 in x 6 in
Maximum Operating Pressure
700 psi

Technical Documents

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

Product Description

The GRUVLOK Rigid Coupling is a rigid bolted-clamp grooved pipe coupling, available in a 6 in x 6 in ductile-iron configuration with an NBR seal and a maximum operating pressure of 700 psi (MPN 390213264). 3G Electric interprets this demand and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is a GRUVLOK rigid coupling used for?

A GRUVLOK rigid coupling joins grooved-end pipe in fire-protection, HVAC, and industrial piping systems. It provides a leak-tight, mechanically locked connection that resists axial movement, making it suitable for high-pressure applications up to 700 psi.

What are the specifications of the GRUVLOK rigid coupling 390213264?

This GRUVLOK rigid coupling (MPN 390213264) is a 6 in x 6 in ductile-iron rigid bolted clamp with an NBR seal. It has a maximum operating pressure of 700 psi and is designed for grooved pipe connections in demanding industrial environments.

Where to buy GRUVLOK rigid couplings worldwide?

3G Electric supplies GRUVLOK rigid couplings worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we interpret your demand and deliver the right part — including this 6 in x 6 in ductile-iron coupling — to your site, anywhere.

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the NBR gasket, place it over one pipe end, then slide the coupling housing over both ends. Tighten bolts evenly to the recommended torque for a rigid, leak-free joint.

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 couplings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
GRUVLOK
GRUVLOK
Rigid bolted-clamp grooved pipe coupling for joining grooved-end pipe. Constructed of ductile iron with an NBR seal. Rated for maximum operating pressure of 700 psi. Suitable for use in fire protection, HVAC, and industrial piping systems
GRUVLOK
GRUVLOK
This rigid bolted-clamp grooved pipe coupling is made of ductile iron with an NBR seal. It is rated for a maximum operating pressure of 600 psi and is used to join grooved-end pipe in fire protection, HVAC, and industrial piping systems
GRUVLOK
GRUVLOK
This rigid coupling joins grooved-end pipe in industrial piping systems for water, oil, and other fluids. It provides a leak-tight, mechanically rigid connection that resists axial movement. The ductile iron body with NBR seal is rated for a maximum operating pressure of 700 psi
GRUVLOK
GRUVLOK
This rigid bolted-clamp grooved pipe coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. Constructed of ductile iron with an NBR seal, it provides a leak-tight, mechanically locked connection that resists axial movement. Rated for a maximum operating pressure of 750 psi
GRUVLOK
GRUVLOK
This rigid bolted-clamp grooved pipe coupling is constructed from ductile iron with an NBR seal. It is rated for a maximum operating pressure of 600 psi and is used to join grooved-end pipe in piping systems requiring a leak-tight, mechanically locked connection
GRUVLOK
GRUVLOK
This rigid grooved pipe coupling joins grooved-end pipes in fluid handling systems. It features a ductile iron body and an NBR seal, rated for a maximum operating pressure of 700 psi. The coupling provides a leak-tight, rigid joint for applications such as fire protection, HVAC, and process piping

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