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

GRUVLOK Clamp Coupling: Flex Hinged, 3 in x 3 in, Ductile Iron, NBR Seal

The GRUVLOK Flex Hinged Clamp Coupling is a 3 in x 3 in grooved pipe coupling made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi. This coupling is designed for joining…

SKU 3G-OTH-468291

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

GRUVLOK
Manufacturer Part Number
0390200525
Type
3 in x 3 in, Ductile Iron, NBR Seal, 300 psi
Fitting Pipe Size
3 in x 3 in
Maximum Operating Pressure
300 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Flex Hinged Clamp Coupling is a 3 in x 3 in grooved pipe coupling made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi. This coupling is designed for joining grooved-end pipe in industrial piping systems.

Frequently Asked Questions

What is a GRUVLOK Flex Hinged Clamp Coupling used for?

A GRUVLOK Flex Hinged Clamp Coupling joins grooved-end pipe in industrial piping systems. It is commonly used in fire protection, HVAC, and process water applications where a flexible, hinged connection is needed for quick installation and maintenance.

What are the specifications of the GRUVLOK 0390200525 coupling?

The GRUVLOK 0390200525 is a 3 in x 3 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-end pipe in industrial systems.

Where to buy GRUVLOK couplings in worldwide?

3G Electric supplies GRUVLOK couplings worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order the GRUVLOK Flex Hinged Clamp Coupling for your piping project.

How to install a GRUVLOK flex hinged clamp coupling?

To install a GRUVLOK flex hinged clamp coupling, ensure pipe ends are grooved per manufacturer specifications. Open the hinged clamp, position it over the joint, and tighten the bolts evenly to the recommended torque. Always follow GRUVLOK installation guidelines 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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