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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling: Clamp, 4 in x 4 in, NBR Seal, 750 psi, Ductile Iron

The GRUVLOK Rigid Coupling is a 4 in x 4 in grooved pipe clamp made of ductile iron with an NBR seal, rated for a maximum operating pressure of 750 psi. It connects grooved x grooved pipe ends for rigid mechanical…

SKU 3G-OTH-460133

Brand
GRUVLOK
Item
Rigid Coupling: Clamp, 4 in x 4 in, NBR Seal, 750 psi, Ductile Iron
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
390213860
Type
4 in x 4 in, NBR Seal, 750 psi, Ductile Iron, Grooved x Grooved
Maximum Operating Pressure
750 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Rigid Coupling is a 4 in x 4 in grooved pipe clamp made of ductile iron with an NBR seal, rated for a maximum operating pressure of 750 psi. It connects grooved x grooved pipe ends for rigid mechanical joining in industrial piping systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a GRUVLOK rigid coupling used for?

A GRUVLOK rigid coupling is used to join grooved-end pipe in industrial piping systems, providing a leak-tight, mechanically rigid connection. It is commonly applied in HVAC, fire protection, and process water lines where secure, high-pressure joints are required.

What are the specifications of the GRUVLOK rigid coupling 390213860?

The GRUVLOK rigid coupling model 390213860 is a 4 in x 4 in clamp with a ductile iron body and NBR seal. It is rated for a maximum operating pressure of 750 psi and connects grooved x grooved pipe ends for rigid mechanical joining.

Where to buy GRUVLOK rigid couplings worldwide?

3G Electric supplies GRUVLOK rigid couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver genuine GRUVLOK parts to support your piping system requirements anywhere.

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and properly grooved. Lubricate the gasket and place it over the pipe ends, then position the coupling housing over the gasket. Tighten bolts evenly to the manufacturer's torque specification for a secure, leak-free joint.

Used in

Common applications for GRUVLOK
Fire-protection systems — GRUVLOK ductile iron butterfly valves (e.g., SKU 3DVX7) for water-based sprinkler and standpipe networks.
Chemical processing — GRUVLOK carbon steel butterfly valve with 316 stainless steel disc (SKU 60WR76) for handling corrosive media.
General water distribution — GRUVLOK ductile iron butterfly valve with EPDM seat (SKU 60WR98) for municipal or industrial water lines.
HVAC piping — GRUVLOK grooved-end butterfly valves for chilled water or hot water systems requiring quick installation.
Industrial process control — GRUVLOK lever-operated butterfly valve (SKU 60WR82) for throttling or isolation in chemical media applications.

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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