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GRUVLOK Couplings: Rigid Bolted, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Couplings: Rigid Bolted, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal

The GRUVLOK Rigid Bolted Coupling is a grooved pipe coupling in a 2-1/2 in x 2-1/2 in size, constructed of ductile iron with an NBR seal and rated for a maximum operating pressure of 750 psi. 3G Electric interprets…

SKU 3G-OTH-468388

Brand
GRUVLOK
Item
Couplings: Rigid Bolted, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390010221
Type
2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal, 750 psi
Fitting Pipe Size
2-1/2 in x 2-1/2 in
Maximum Operating Pressure
750 psi
View Full Spec Sheet

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

Product Description

The GRUVLOK Rigid Bolted Coupling is a grooved pipe coupling in a 2-1/2 in x 2-1/2 in size, constructed of ductile iron with an NBR seal and rated for a maximum operating pressure of 750 psi. 3G Electric interprets this demand and delivers this genuine industrial component, backed by specialist depth in combustion, pumps and controls across 14 industrial departments — and we supply far more than is listed.

Frequently Asked Questions

What is a GRUVLOK Rigid Bolted Coupling used for?

A GRUVLOK Rigid Bolted Coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It provides a rigid, leak-resistant connection rated for 750 psi, suitable for high-pressure water, air, and other non-corrosive services.

What are the specifications of the GRUVLOK 0390010221 coupling?

The GRUVLOK 0390010221 is a 2-1/2 in x 2-1/2 in rigid bolted coupling made of ductile iron with an NBR seal. It has a maximum operating pressure of 750 psi and is designed for grooved-end pipe. 3G Electric supplies this genuine GRUVLOK component worldwide.

Where to buy GRUVLOK couplings in worldwide?

3G Electric supplies GRUVLOK couplings, including the 0390010221 rigid bolted model, to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 2-1/2 in ductile iron coupling.

How to install a GRUVLOK rigid bolted coupling?

To install a GRUVLOK rigid bolted coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the NBR gasket, place it over one pipe end, then slide the coupling housing over both ends. Tighten bolts evenly to the recommended torque for a 750 psi rated joint.

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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