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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, made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 750 psi. 3G Electric interprets this…

SKU 3G-OTH-468318

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
390213412
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, made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 750 psi. 3G Electric interprets this demand and delivers this genuine industrial component across 14 departments — and far more — with specialist trust anchored in combustion, pumps and controls as an authorised distributor for brands like GRUVLOK, Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump and FBR.

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 joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It provides a leak-tight, bolted connection rated for 750 psi, using a ductile-iron housing and EPDM seal for reliable performance in water and light chemical service.

What are the specifications of the GRUVLOK rigid coupling 390213412?

The GRUVLOK rigid coupling model 390213412 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 and is designed for grooved pipe connections in industrial and commercial systems.

Where to buy a GRUVLOK rigid coupling worldwide?

3G Electric supplies the genuine GRUVLOK rigid coupling 390213412 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this component to your site. Contact us for pricing and lead time.

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved per manufacturer specifications. Place the gasket over both pipe ends, then position the coupling housing over the gasket. Insert bolts and tighten evenly to the recommended torque 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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