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

GRUVLOK Clamp Coupling: Flex Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling: Flex Bolted is a grooved pipe coupling in a 1-1/4 in x 1-1/4 in size, constructed from ductile iron with an EPDM seal and rated for a maximum operating pressure of 1,000 psi (MPN…

SKU 3G-OTH-468159

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

GRUVLOK
Manufacturer Part Number
0390004471
Type
1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 1,000 psi
Fitting Pipe Size
1-1/4 in x 1-1/4 in
Maximum Operating Pressure
1,000 psi
View Full Spec Sheet

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

Product Description

The GRUVLOK Clamp Coupling: Flex Bolted is a grooved pipe coupling in a 1-1/4 in x 1-1/4 in size, constructed from ductile iron with an EPDM seal and rated for a maximum operating pressure of 1,000 psi (MPN 0390004471). 3G Electric interprets this demand and delivers the genuine GRUVLOK coupling across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is a GRUVLOK flex bolted clamp coupling used for?

A GRUVLOK flex bolted clamp coupling joins grooved-end pipes in industrial piping systems, allowing for limited angular deflection to accommodate thermal expansion or minor misalignment. It is commonly used in HVAC, fire protection, and process piping applications where a reliable, leak-tight connection is needed.

What are the specifications of the GRUVLOK 0390004471 coupling?

The GRUVLOK 0390004471 is a 1-1/4 in x 1-1/4 in flex bolted clamp coupling made of ductile iron with an EPDM seal. It has a maximum operating pressure of 1,000 psi. This grooved pipe coupling is designed for use with standard grooved-end pipe and fittings.

Where to buy GRUVLOK couplings worldwide?

3G Electric supplies genuine GRUVLOK couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver the exact GRUVLOK part you need, including the 0390004471 flex bolted clamp coupling, to any destination.

How to install a GRUVLOK flex bolted clamp coupling?

To install a GRUVLOK flex bolted clamp coupling, ensure pipe ends are clean and grooved per manufacturer specifications. Place the gasket over the pipe ends, then position the coupling housing over the gasket. Tighten the bolts evenly to the recommended torque to achieve a secure, leak-free 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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