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GRUVLOKGrooved Pipe Couplings

GRUVLOK Rigid Coupling: Clamp, 2 1/2 in x 2 1/2 in, NBR Seal, 750 psi, Ductile Iron

The GRUVLOK Rigid Coupling is a 2 1/2 in x 2 1/2 in grooved pipe clamp made of ductile iron with an NBR seal, bolted design, and a maximum operating pressure of 750 psi. 3G Electric interprets this demand and…

SKU 3G-OTH-460128

Brand
GRUVLOK
Item
Rigid Coupling: Clamp, 2 1/2 in x 2 1/2 in, NBR Seal, 750 psi, Ductile Iron
Category
Grooved Pipe Couplings
Available to Order
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Technical Specifications

GRUVLOK
Manufacturer Part Number
390213656
Type
2 1/2 in x 2 1/2 in, NBR Seal, 750 psi, Ductile Iron, Bolted
Maximum Operating Pressure
750 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Rigid Coupling is a 2 1/2 in x 2 1/2 in grooved pipe clamp made of ductile iron with an NBR seal, bolted design, and a maximum operating pressure of 750 psi. 3G Electric interprets this demand and delivers the genuine GRUVLOK part (MPN 390213656) across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the GRUVLOK Rigid Coupling used for?

The GRUVLOK Rigid Coupling (MPN 390213656) is used to join grooved-end pipe in fire protection, HVAC, and industrial piping systems. It provides a rigid, leak-proof connection rated for 750 psi, suitable for high-pressure water, oil, and chemical lines.

What are the specifications of the GRUVLOK Rigid Coupling?

This GRUVLOK coupling is a 2 1/2 in x 2 1/2 in bolted clamp made of ductile iron with an NBR seal. Maximum operating pressure is 750 psi. It is designed for grooved pipe and carries MPN 390213656.

Where to buy GRUVLOK Rigid Coupling worldwide?

3G Electric supplies the genuine GRUVLOK Rigid Coupling (MPN 390213656) worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this ductile iron, 750 psi grooved coupling.

How to install a GRUVLOK Rigid Coupling?

To install a GRUVLOK Rigid Coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the NBR gasket, place it over the pipe ends, then position the ductile iron housing and tighten bolts evenly to the recommended torque. Do not exceed 750 psi.

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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