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

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

The GRUVLOK Clamp Coupling is a rigid bolted grooved pipe coupling in an 8 in x 8 in size, constructed from ductile iron with an NBR seal and rated for a maximum operating pressure of 600 psi (MPN 0390013720). 3G…

SKU 3G-OTH-468304

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

GRUVLOK
Manufacturer Part Number
0390013720
Type
8 in x 8 in, Ductile Iron, NBR Seal, 600 psi
Fitting Pipe Size
8 in x 8 in
Maximum Operating Pressure
600 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Clamp Coupling is a rigid bolted grooved pipe coupling in an 8 in x 8 in size, constructed from ductile iron with an NBR seal and rated for a maximum operating pressure of 600 psi (MPN 0390013720). 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments — with specialist depth in combustion, pumps and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the GRUVLOK 8 in x 8 in rigid bolted clamp coupling used for?

This GRUVLOK rigid bolted clamp coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. Its ductile iron body and NBR seal handle pressures up to 600 psi, making it suitable for water, oil, and other non-corrosive fluid services.

What are the specifications of the GRUVLOK clamp coupling MPN 0390013720?

The GRUVLOK clamp coupling is an 8 in x 8 in rigid bolted type, made of ductile iron with an NBR seal. It has a maximum operating pressure of 600 psi and a fitting pipe size of 8 in. The manufacturer part number is 0390013720.

Where to buy the GRUVLOK 8 in clamp coupling worldwide?

3G Electric supplies the GRUVLOK 8 in rigid bolted clamp coupling worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine component to your site. Contact us for availability and lead time.

How to install a GRUVLOK rigid bolted coupling?

Installation requires clean, properly grooved pipe ends. Lubricate the NBR gasket and position it over both pipe ends. Place the coupling housing over the gasket, insert bolts, and tighten evenly to the torque specified by GRUVLOK. Always follow the manufacturer's instructions for pressure ratings.

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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