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GRUVLOK Clamp Coupling: Flex Hinged, 8 in x 8 in, Ductile Iron, NBR Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Flex Hinged, 8 in x 8 in, Ductile Iron, NBR Seal

The GRUVLOK Flex Hinged Clamp Coupling is a grooved pipe coupling in an 8 in x 8 in size, constructed of ductile iron with an NBR seal and rated for a maximum operating pressure of 300 psi. This product is part of…

SKU 3G-OTH-468251

Brand
GRUVLOK
Item
Clamp Coupling: Flex Hinged, 8 in x 8 in, Ductile Iron, NBR Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390200640
Type
8 in x 8 in, Ductile Iron, NBR Seal, 300 psi
Fitting Pipe Size
8 in x 8 in
Maximum Operating Pressure
300 psi
View Full Spec Sheet

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

Product Description

The GRUVLOK Flex Hinged Clamp Coupling is a grooved pipe coupling in an 8 in x 8 in size, constructed of ductile iron with an NBR seal and rated for a maximum operating pressure of 300 psi. This product is part of our broader industrial piping solutions, supported by specialist expertise in pumps and controls.

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 Flex Hinged Clamp Coupling used for?

A GRUVLOK Flex Hinged Clamp Coupling joins grooved-end pipes in industrial piping systems, allowing for angular deflection and easy maintenance. It is commonly used in HVAC, fire protection, and process piping where quick disassembly and alignment are needed.

What are the specifications of the GRUVLOK 0390200640 coupling?

The GRUVLOK 0390200640 is an 8 in x 8 in flex hinged clamp coupling made of ductile iron with an NBR seal. It has a maximum operating pressure of 300 psi and is designed for grooved pipe connections in demanding industrial applications.

Where to buy GRUVLOK pipe couplings in worldwide?

3G Electric supplies GRUVLOK pipe couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver genuine GRUVLOK components to support your piping system requirements.

How to install a GRUVLOK hinged clamp coupling?

To install a GRUVLOK hinged clamp coupling, ensure pipe ends are clean and grooved per manufacturer standards. Open the hinged clamp, position it over the joint, and tighten the bolts evenly to the recommended torque. Always follow GRUVLOK's installation instructions for proper sealing.

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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