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GRUVLOK Clamp Coupling: Flex Hinged, 4 in x 4 in, Ductile Iron, NBR Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Flex Hinged, 4 in x 4 in, Ductile Iron, NBR Seal

The GRUVLOK Clamp Coupling: Flex Hinged is a 4 in x 4 in grooved pipe coupling made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi (MPN 0390200566). 3G Electric interprets…

SKU 3G-OTH-468389

Brand
GRUVLOK
Item
Clamp Coupling: Flex Hinged, 4 in x 4 in, Ductile Iron, NBR Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390200566
Type
4 in x 4 in, Ductile Iron, NBR Seal, 300 psi
Fitting Pipe Size
4 in x 4 in
Maximum Operating Pressure
300 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Clamp Coupling: Flex Hinged is a 4 in x 4 in grooved pipe coupling made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi (MPN 0390200566). 3G Electric interprets customer demand and delivers this genuine industrial coupling across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like GRUVLOK, Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump and FBR.

Frequently Asked Questions

What is the GRUVLOK Flex Hinged Clamp Coupling used for?

The GRUVLOK Flex Hinged Clamp Coupling is used to join grooved-end pipes in industrial fire protection, HVAC, and process piping systems. Its hinged design allows quick installation and maintenance without full disassembly, saving time in tight spaces.

What are the specifications of the GRUVLOK 0390200566 coupling?

The GRUVLOK 0390200566 is a 4 in x 4 in ductile iron flex hinged clamp coupling with an NBR seal, rated for a maximum operating pressure of 300 psi. It is designed for grooved pipe systems and is supplied by 3G Electric.

Where to buy GRUVLOK 0390200566 worldwide?

3G Electric supplies the GRUVLOK 0390200566 flex hinged clamp coupling worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine coupling to your facility, regardless of location.

How to install a GRUVLOK flex hinged clamp coupling?

To install a GRUVLOK flex hinged clamp coupling, align the coupling over the grooved pipe ends, close the hinge, and tighten the bolts evenly to the manufacturer's torque specification. Always verify the NBR seal is properly seated and the pipe ends are clean before assembly.

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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