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GRUVLOK Clamp Coupling: Clamp, 3 in x 3 in, Ductile Iron, EPDM Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Clamp, 3 in x 3 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling is a 3 in x 3 in grooved pipe coupling made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150° F. This clamp-style coupling is designed for joining…

SKU 3G-OTH-468201

Brand
GRUVLOK
Item
Clamp Coupling: Clamp, 3 in x 3 in, Ductile Iron, EPDM Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390000305
Type
3 in x 3 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
3 in x 3 in
Maximum Operating Pressure
300 psi @ 150° F
View Full Spec Sheet

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

Product Description

The GRUVLOK Clamp Coupling is a 3 in x 3 in grooved pipe coupling made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150° F. This clamp-style coupling is designed for joining grooved-end pipe in industrial piping systems.

Frequently Asked Questions

What is a GRUVLOK clamp coupling used for?

A GRUVLOK clamp coupling joins grooved-end pipe in industrial piping systems for water, oil, or chemical transfer. It provides a leak-tight, flexible connection that accommodates thermal expansion and vibration, commonly used in HVAC, fire protection, and process plants.

What are the specifications of the GRUVLOK 0390000305 coupling?

The GRUVLOK 0390000305 is a 3 in x 3 in grooved clamp coupling made of ductile iron with an EPDM seal. It is rated for a maximum operating pressure of 300 psi at 150° F, designed for joining grooved-end pipe in industrial piping systems.

Where to buy GRUVLOK couplings worldwide?

3G Electric supplies GRUVLOK couplings worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine GRUVLOK parts like the 0390000305 clamp coupling to any international destination.

How to install a GRUVLOK grooved pipe coupling?

To install a GRUVLOK grooved coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the EPDM gasket, place it over the pipe ends, then position the ductile iron housing over the gasket and tighten the bolts evenly to the recommended torque.

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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