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GRUVLOK Clamp Coupling: Bolted, 3 in x 3 in, Ductile Iron, NBR Seal, 600 psi - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Bolted, 3 in x 3 in, Ductile Iron, NBR Seal, 600 psi

The GRUVLOK Clamp Coupling is a bolted grooved pipe coupling designed for 3 in x 3 in pipe connections. It features a ductile iron construction with an NBR seal and a maximum operating pressure of 600 psi, with an…

SKU 3G-OTH-468273

Brand
GRUVLOK
Item
Clamp Coupling: Bolted, 3 in x 3 in, Ductile Iron, NBR Seal, 600 psi
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390007581
Type
3 in x 3 in, Ductile Iron, NBR Seal, 600 psi
Overall Lg
8 1/8 in
Fitting Pipe Size
3 in x 3 in
Maximum Operating Pressure
600 psi
View Full Spec Sheet

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

Product Description

The GRUVLOK Clamp Coupling is a bolted grooved pipe coupling designed for 3 in x 3 in pipe connections. It features a ductile iron construction with an NBR seal and a maximum operating pressure of 600 psi, with an overall length of 8 1/8 in.

Frequently Asked Questions

What is a GRUVLOK clamp coupling used for?

A GRUVLOK clamp coupling joins grooved-end pipes in industrial fire protection, HVAC, and process piping systems. It provides a rigid or flexible connection rated up to 600 psi, using a ductile iron housing and NBR seal for reliable sealing in water and light oil applications.

What are the specifications of the GRUVLOK 0390007581 coupling?

This GRUVLOK bolted clamp coupling fits 3 in x 3 in pipe, has a ductile iron body with an NBR seal, and a maximum operating pressure of 600 psi. Overall length is 8 1/8 in. It is designed for grooved pipe connections in commercial and industrial systems.

Where to buy GRUVLOK couplings worldwide?

3G Electric supplies GRUVLOK clamp couplings worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the 0390007581 model or other GRUVLOK grooved pipe fittings.

How to install a GRUVLOK bolted coupling?

Installation requires aligning the grooved pipe ends, placing the gasket over the joint, and positioning the coupling housing over the gasket. Tighten the bolts evenly to the torque specified by GRUVLOK. Always follow the manufacturer's instructions and use proper safety equipment.

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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GRUVLOK Clamp Coupling: 4 in x 4 in, EPDM Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390113406). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
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GRUVLOK Rigid Coupling: Rigid Bolted Clamp, 4 in x 4 in, Ductile Iron, NBR Seal, 750 psi (MPN 390213460). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Fitting Pipe Size: 4 in x 4 in.
GRUVLOK Metal Pipe Straight: Straight, 6 in x 6 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390007433). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 6 in x 6 in.
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