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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling: Clamp, 4 in x 4 in, EPDM 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 EPDM seal, connecting grooved x grooved pipe ends. It is rated for a maximum operating pressure of 750 psi (MPN 390213612).

SKU 3G-OTH-460131

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

GRUVLOK
Manufacturer Part Number
390213612
Type
4 in x 4 in, EPDM 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 EPDM seal, connecting grooved x grooved pipe ends. It is rated for a maximum operating pressure of 750 psi (MPN 390213612).

Frequently Asked Questions

What is the GRUVLOK rigid coupling used for?

The GRUVLOK rigid coupling connects grooved-end pipe in industrial fire protection, HVAC, and process piping systems. Its ductile iron construction and EPDM seal handle pressures up to 750 psi, making it suitable for demanding water and air service applications.

What are the specifications of the GRUVLOK rigid coupling 390213612?

This GRUVLOK rigid coupling is a 4 in x 4 in grooved pipe clamp with a ductile iron body and EPDM seal. It connects grooved x grooved pipe ends and is rated for a maximum operating pressure of 750 psi. The manufacturer part number is 390213612.

Where to buy GRUVLOK rigid couplings worldwide?

3G Electric supplies GRUVLOK rigid couplings worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the 4 in x 4 in model (MPN 390213612).

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved per manufacturer specifications. Lubricate the EPDM gasket, place it over both pipe ends, then position the coupling housing and tighten bolts evenly to the recommended torque. Always follow GRUVLOK's published installation instructions.

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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