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

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

The GRUVLOK Flex Bolted 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 1,000 psi (MPN 0390004539). 3G Electric interprets…

SKU 3G-OTH-468353

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

GRUVLOK
Manufacturer Part Number
0390004539
Type
3 in x 3 in, Ductile Iron, EPDM Seal, 1,000 psi
Fitting Pipe Size
3 in x 3 in
Maximum Operating Pressure
1,000 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Flex Bolted 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 1,000 psi (MPN 0390004539). 3G Electric interprets demand for this OEM coupling across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is a GRUVLOK Flex Bolted Clamp Coupling used for?

A GRUVLOK Flex Bolted Clamp Coupling joins grooved-end pipes in industrial fire protection, HVAC, and process piping systems. It accommodates minor angular deflection and thermal expansion while maintaining a leak-tight seal at pressures up to 1,000 psi.

What are the specifications of the GRUVLOK 0390004539 coupling?

The GRUVLOK 0390004539 is a 3 in x 3 in flex bolted clamp coupling made of ductile iron with an EPDM seal. It has a maximum operating pressure of 1,000 psi and is designed for grooved pipe connections in commercial and industrial applications.

Where to buy GRUVLOK couplings in worldwide?

3G Electric supplies GRUVLOK couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver genuine OEM parts like the 0390004539 to any location, ensuring compliance with local import requirements.

How to install a GRUVLOK flex bolted coupling?

To install a GRUVLOK flex bolted coupling, ensure pipe ends are clean and grooved per manufacturer specifications. Place the gasket over the pipe ends, then position the coupling housing over the gasket. Tighten bolts evenly to the recommended torque to achieve 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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GRUVLOK Clamp Coupling: Rigid Bolted Clamp, 10 in x 10 in, Ductile Iron, EPDM Seal, 300 psi (MPN 0390060168). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi; Fitting Pipe Size: 10 in x 10 in.
GRUVLOK Clamp Coupling: Flex Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 1,000 psi (MPN 0390004471). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 1,000 psi; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
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GRUVLOK Clamp Coupling: Flex Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 1,000 psi (MPN 0390004471). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 1,000 psi; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
GRUVLOK Clamp Coupling: Hinged Clamp, 4 in x 4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390200103). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 4 in x 4 in.
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GRUVLOK Clamp Coupling: Hinged Clamp, 4 in x 4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390200103). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 4 in x 4 in.
GRUVLOK Metal Pipe Straight: Straight, 8 in x 8 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390003143). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 8 in x 8 in.
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GRUVLOK Metal Pipe Straight: Straight, 8 in x 8 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390003143). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 8 in x 8 in.
GRUVLOK Clamp Coupling: Clamp, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390002962). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
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