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

GRUVLOK Clamp Coupling: Clamp, 1 1/2 in x 1 1/2 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling is a grooved pipe coupling in a 1-1/2 in x 1-1/2 in size, constructed from ductile iron with an EPDM seal. It is rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390002988).

SKU 3G-OTH-468278

Brand
GRUVLOK
Item
Clamp Coupling: Clamp, 1 1/2 in x 1 1/2 in, Ductile Iron, EPDM Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390002988
Type
1 1/2 in x 1 1/2 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
1-1/2 in x 1-1/2 in
Maximum Operating Pressure
300 psi @ 150° F
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Clamp Coupling is a grooved pipe coupling in a 1-1/2 in x 1-1/2 in size, constructed from ductile iron with an EPDM seal. It is rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390002988).

Frequently Asked Questions

What is a GRUVLOK clamp coupling used for?

A GRUVLOK clamp coupling joins grooved-end pipes in fire protection, HVAC, and industrial piping systems. It provides a rigid or flexible connection rated for 300 psi at 150° F, using a ductile-iron housing and EPDM seal for reliable sealing in water and dilute chemical services.

What are the specifications of the GRUVLOK 0390002988 coupling?

The GRUVLOK 0390002988 is a 1-1/2 in x 1-1/2 in grooved clamp coupling made of ductile iron with an EPDM seal. It has a maximum operating pressure of 300 psi at 150° F. This coupling is designed for use with standard grooved pipe in commercial and industrial applications.

Where to buy GRUVLOK couplings worldwide?

3G Electric supplies GRUVLOK clamp couplings worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the 0390002988 or other GRUVLOK grooved pipe couplings.

How to install a GRUVLOK grooved pipe coupling?

To install a GRUVLOK coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the EPDM gasket and place it over both pipe ends. Position the ductile-iron clamp halves over the gasket, then tighten bolts evenly to the torque recommended by GRUVLOK. Always follow the manufacturer's 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, 2 in x 2 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390010007). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 2 in x 2 in.
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