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

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

The GRUVLOK Clamp Coupling is a rigid bolted grooved pipe coupling, available 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 300 psi (MPN…

SKU 3G-OTH-468191

Brand
GRUVLOK
Item
Clamp Coupling: 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
0390212728
Type
2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal, 300 psi
Fitting Pipe Size
2-1/2 in x 2-1/2 in
Maximum Operating Pressure
300 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, available 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 300 psi (MPN 0390212728).

Frequently Asked Questions

What is a GRUVLOK rigid bolted clamp coupling used for?

A GRUVLOK rigid bolted clamp coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It provides a leak-tight, mechanically rigid connection rated for 300 psi, suitable for water, oil, and other non-corrosive fluids.

What are the specifications of the GRUVLOK 0390212728 coupling?

The GRUVLOK 0390212728 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 300 psi and is designed for grooved pipe connections in commercial and industrial applications.

Where to buy GRUVLOK couplings for worldwide delivery?

3G Electric supplies GRUVLOK rigid bolted clamp couplings and handles full logistics, customs clearance, and delivery to worldwide destinations. As a global industrial sourcing partner, we provide genuine GRUVLOK parts without requiring a local distributor.

How to install a GRUVLOK rigid coupling on grooved pipe?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the NBR gasket, place it over both pipe ends, then position the coupling housing and tighten bolts evenly to the recommended torque. Always follow GRUVLOK installation instructions.

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: Clamp, 14 in x 14 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390013605). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 14 in x 14 in.
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GRUVLOK Clamp Coupling: Clamp, 14 in x 14 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390013605). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 14 in x 14 in.
GRUVLOK Clamp Coupling: Clamp, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal, 300 psi @ 150° F (MPN 0390003663). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 2-1/2 in x 2-1/2 in.
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GRUVLOK Clamp Coupling: Clamp, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal, 300 psi @ 150° F (MPN 0390003663). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 2-1/2 in x 2-1/2 in.
GRUVLOK Clamp Coupling: Clamp, 2 in x 2 in, Ductile Iron, NBR Seal, 300 psi @ 150° F (MPN 0390003648). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 2 in x 2 in.
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GRUVLOK Couplings: 3 in x 3 in, EPDM Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390113404). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
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GRUVLOK Couplings: 3 in x 3 in, EPDM Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390113404). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
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