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GRUVLOKGrooved Pipe Couplings

GRUVLOK Grooved Pipe Coupling

The GRUVLOK Rigid Coupling is a grooved pipe clamp coupling, 6 in x 6 in, with an NBR seal and ductile iron construction. It connects grooved x grooved pipe ends and is rated for a maximum operating pressure of 700…

SKU 3G-OTH-460118

Brand
GRUVLOK
Item
Grooved Pipe Coupling
Part Number
390213664
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
390213664
Type
6 in x 6 in, NBR Seal, 700 psi, Ductile Iron, Grooved x Grooved
Maximum Operating Pressure
700 psi

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

Product Description

The GRUVLOK Rigid Coupling is a grooved pipe clamp coupling, 6 in x 6 in, with an NBR seal and ductile iron construction. It connects grooved x grooved pipe ends and is rated for a maximum operating pressure of 700 psi (MPN 390213664).

Frequently Asked Questions

What is the GRUVLOK rigid coupling used for?

The GRUVLOK rigid coupling connects grooved-end pipe in industrial fire protection, HVAC, and process piping systems. Its ductile iron construction and NBR seal handle pressures up to 700 psi, providing a leak-tight, rigid joint for reliable fluid handling.

What are the specifications of the GRUVLOK rigid coupling 390213664?

This GRUVLOK rigid coupling is 6 in x 6 in with a grooved x grooved connection, NBR seal, and ductile iron body. Maximum operating pressure is 700 psi. It is designed for rigid pipe joining in commercial and industrial applications.

Where to buy the GRUVLOK rigid coupling 390213664 worldwide?

3G Electric supplies the GRUVLOK rigid coupling 390213664 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this grooved pipe coupling.

How to install a GRUVLOK rigid coupling?

Installation requires clean, properly grooved pipe ends. Lubricate the NBR gasket, place it over one pipe end, then slide the coupling housing over both ends. Tighten bolts evenly to the manufacturer's torque specification. Always follow GRUVLOK's published instructions for pressure ratings.

Used in

Common applications for GRUVLOK
Fire protection systems — GRUVLOK grooved couplings and fittings for joining sprinkler pipe, such as the 6-inch coupling (SKU 46KK70) rated for 300 psi.
HVAC piping — GRUVLOK flexible couplings (e.g., SKU 408JM0) to accommodate thermal movement in chilled water and heating systems.
Process piping — GRUVLOK concentric reducer elbow (SKU 408GX7) for changing pipe direction and size in chemical and industrial processes.
Industrial piping — GRUVLOK high-pressure couplings (e.g., SKU 408HF6) rated to 1,000 psi for demanding applications.
Mechanical piping systems — GRUVLOK rigid couplings (e.g., SKU 60XP12) for joining large-diameter pipe in water distribution.
Plumbing systems — GRUVLOK NSF 61 approved couplings for potable water applications, ensuring compliance with health standards.
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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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Compatible alternatives & equivalents

Cross-referenced by specification & description
GRUVLOK
GRUVLOK
This rigid coupling joins grooved-end pipe in industrial piping systems for water, oil, and other fluids. It provides a leak-tight, mechanically rigid connection that resists axial movement. The ductile iron body with NBR seal is rated for a maximum operating pressure of 700 psi
GRUVLOK
GRUVLOK
This rigid coupling joins grooved-end pipes in industrial piping systems. It features a ductile iron body with an NBR seal, rated for 600 psi maximum operating pressure. The grooved x grooved connection provides a leak-tight, mechanically strong joint suitable for HVAC, fire protection, and process piping applications
GRUVLOK
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This rigid grooved pipe coupling is designed for joining grooved-end pipes in industrial piping systems. It features a ductile iron construction with an NBR seal, rated for a maximum operating pressure of 750 psi. The coupling provides a secure, leak-resistant connection suitable for applications such as HVAC, fire protection, and process piping
GRUVLOK
GRUVLOK
This rigid bolted-clamp grooved pipe coupling is made of ductile iron with an NBR seal. It is designed for joining grooved-end pipe in fire-protection, HVAC, and industrial piping systems, providing a leak-tight, mechanically locked connection that resists axial movement at pressures up to 700 psi
GRUVLOK
GRUVLOK
Rigid bolted-clamp grooved pipe coupling for joining grooved-end pipe. Constructed of ductile iron with an NBR seal. Rated for maximum operating pressure of 700 psi. Suitable for use in fire protection, HVAC, and industrial piping systems

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Grooved pipe coupling for joining grooved-end pipes in fire protection, HVAC, and process piping systems. Constructed of ductile iron with an EPDM seal, rated for 300 psi at 150°F. Suitable for rigid or flexible connections
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