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GRUVLOK Clamp Coupling: Rigid Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, NBR Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Rigid Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, NBR Seal

The GRUVLOK Clamp Coupling is a rigid bolted grooved pipe coupling, available in a 1-1/4 in x 1-1/4 in fitting pipe size. Constructed from ductile iron with an NBR seal, it is rated for a maximum operating pressure…

SKU 3G-OTH-468163

Brand
GRUVLOK
Item
Clamp Coupling: Rigid Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, NBR Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390212660
Type
1 1/4 in x 1 1/4 in, Ductile Iron, NBR Seal, 300 psi
Fitting Pipe Size
1-1/4 in x 1-1/4 in
Maximum Operating Pressure
300 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 rigid bolted grooved pipe coupling, available in a 1-1/4 in x 1-1/4 in fitting pipe size. Constructed from ductile iron with an NBR seal, it is rated for a maximum operating pressure of 300 psi (MPN 0390212660).

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 and other compatible fluids.

What are the specifications of the GRUVLOK 0390212660 coupling?

The GRUVLOK 0390212660 is a 1-1/4 in x 1-1/4 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 couplings and handles full logistics, customs clearance, and delivery to worldwide destinations. As a global industrial sourcing partner, we provide genuine GRUVLOK parts like the 0390212660 rigid coupling for your project needs.

How to install a GRUVLOK rigid coupling on grooved pipe?

To install a GRUVLOK rigid coupling, align the grooved pipe ends, place the gasket over both grooves, then position the coupling housing over the gasket. Insert bolts and tighten evenly to the manufacturer's torque specification. Always follow GRUVLOK's installation instructions for proper sealing.

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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