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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling: Clamp, 8 in x 8 in, EPDM 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 EPDM seal, rated for a maximum operating pressure of 600 psi. It connects grooved x grooved pipe ends in industrial piping…

SKU 3G-OTH-460116

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

GRUVLOK
Manufacturer Part Number
390213818
Type
8 in x 8 in, EPDM 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 EPDM seal, rated for a maximum operating pressure of 600 psi. It connects grooved x grooved pipe ends in industrial piping systems.

Frequently Asked Questions

What is a GRUVLOK rigid coupling used for?

A GRUVLOK rigid coupling connects grooved-end pipe in industrial piping systems for water, oil, and chemical services. It provides a leak-tight, mechanically strong joint rated to 600 psi, suitable for HVAC, fire protection, and process lines.

What are the specifications of the GRUVLOK rigid coupling 390213818?

This GRUVLOK rigid coupling is 8 in x 8 in, ductile iron with an EPDM seal, grooved x grooved connection, and a maximum operating pressure of 600 psi. The manufacturer part number is 390213818.

Where to buy GRUVLOK rigid couplings worldwide?

3G Electric supplies GRUVLOK rigid couplings worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 8 in ductile iron coupling with EPDM seal.

How to install a GRUVLOK rigid coupling?

Align the grooved pipe ends, lubricate the EPDM gasket, and place it over the joint. Position the coupling housing over the gasket, insert bolts, and tighten nuts evenly to the manufacturer's torque specification. Do not exceed 600 psi operating pressure.

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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