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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling: Rigid Bolted Clamp, 4 in x 4 in, Ductile Iron, EPDM Seal

The GRUVLOK Rigid Coupling is a rigid bolted-clamp grooved pipe coupling in a 4 in x 4 in size, constructed of ductile iron with an EPDM seal and rated for a maximum operating pressure of 750 psi. 3G Electric…

SKU 3G-OTH-468316

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

GRUVLOK
Manufacturer Part Number
390213212
Type
4 in x 4 in, Ductile Iron, EPDM Seal, 750 psi
Fitting Pipe Size
4 in x 4 in
Maximum Operating Pressure
750 psi
View Full Spec Sheet

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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 in a 4 in x 4 in size, constructed of ductile iron with an EPDM seal and rated for a maximum operating pressure of 750 psi. 3G Electric interprets this demand and sources the genuine GRUVLOK part (MPN 390213212) across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

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 rated for 750 psi. 3G Electric sources this genuine GRUVLOK part (MPN 390213212) for worldwide delivery across 14 industrial departments.

What are the specifications of the GRUVLOK rigid coupling 390213212?

The GRUVLOK rigid coupling (MPN 390213212) is a 4 in x 4 in rigid bolted clamp made of ductile iron with an EPDM seal. It has a maximum operating pressure of 750 psi. 3G Electric supplies this genuine GRUVLOK coupling for industrial piping applications worldwide.

Where to buy a GRUVLOK rigid coupling 4 in worldwide?

3G Electric supplies the genuine GRUVLOK rigid coupling (MPN 390213212) worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source across 14 departments including combustion, pumps, and controls. Contact us for availability and lead time.

How to install a GRUVLOK rigid coupling?

Install a GRUVLOK rigid coupling by ensuring pipe ends are clean and grooved per manufacturer specs. Lubricate the EPDM gasket, place it over the pipe end, and slide the coupling housing over the gasket. Tighten bolts evenly to the recommended torque. 3G Electric supplies this genuine GRUVLOK part for reliable connections.

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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