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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling: Clamp, 8 in x 8 in, NBR Seal, 600 psi, Ductile Iron

The GRUVLOK Rigid Coupling is an 8 in x 8 in grooved pipe clamp made of ductile iron with an NBR seal, designed for grooved x grooved connections. It has a maximum operating pressure of 600 psi (MPN 390213866).

SKU 3G-OTH-460115

Brand
GRUVLOK
Item
Rigid Coupling: Clamp, 8 in x 8 in, NBR Seal, 600 psi, Ductile Iron
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
390213866
Type
8 in x 8 in, NBR Seal, 600 psi, Ductile Iron, Grooved x Grooved
Maximum Operating Pressure
600 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Rigid Coupling is an 8 in x 8 in grooved pipe clamp made of ductile iron with an NBR seal, designed for grooved x grooved connections. It has a maximum operating pressure of 600 psi (MPN 390213866).

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 the GRUVLOK rigid coupling used for?

The GRUVLOK rigid coupling is used to join grooved-end pipes in industrial piping systems, providing a leak-tight, mechanically strong connection. It is commonly applied in HVAC, fire protection, and process piping where reliable sealing and pressure retention up to 600 psi are required.

What are the specifications of the GRUVLOK rigid coupling 390213866?

This GRUVLOK rigid coupling is an 8 in x 8 in clamp with a ductile iron body and NBR seal, designed for grooved x grooved connections. It has a maximum operating pressure of 600 psi. The manufacturer part number is 390213866.

Where to buy GRUVLOK rigid couplings worldwide?

3G Electric supplies GRUVLOK rigid couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine GRUVLOK parts like the 390213866 coupling to customers across multiple industries.

How to install a GRUVLOK rigid coupling?

Installation requires aligning the grooved pipe ends, placing the coupling gasket over the joint, and tightening the bolts evenly to the manufacturer's torque specification. Always verify pipe-end preparation and lubricate the gasket as recommended. For specific torque values, consult the GRUVLOK installation manual.

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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