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GRUVLOK Clamp Coupling: Clamp, 3 in x 2 1/2 in, Ductile Iron, EPDM Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Clamp, 3 in x 2 1/2 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling is a grooved pipe coupling in a 3 in x 2-1/2 in size, made of ductile iron with an EPDM seal, rated for 300 psi at 150° F (MPN 0390009389). 3G Electric interprets demand for this OEM part…

SKU 3G-OTH-468360

Brand
GRUVLOK
Item
Clamp Coupling: Clamp, 3 in x 2 1/2 in, Ductile Iron, EPDM Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390009389
Type
3 in x 2 1/2 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
3 in x 2-1/2 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 3 in x 2-1/2 in size, made of ductile iron with an EPDM seal, rated for 300 psi at 150° F (MPN 0390009389). 3G Electric interprets demand for this OEM part across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is a GRUVLOK clamp coupling used for?

A GRUVLOK clamp coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It provides a flexible, leak-tight connection rated for 300 psi at 150° F, using a ductile iron housing and EPDM seal.

What are the specifications of the GRUVLOK 0390009389 coupling?

The GRUVLOK 0390009389 is a 3 in x 2-1/2 in grooved clamp coupling made of ductile iron with an EPDM seal. It has a maximum operating pressure of 300 psi at 150° F. 3G Electric supplies this OEM part globally.

Where to buy GRUVLOK clamp couplings worldwide?

3G Electric supplies GRUVLOK clamp couplings worldwide. We handle full logistics and customs clearance to deliver this ductile iron coupling with EPDM seal, rated 300 psi at 150° F, to your facility. Contact us for availability and lead time.

How to install a GRUVLOK grooved pipe coupling?

To install a GRUVLOK coupling, align the grooved pipe ends, lubricate the EPDM gasket, and place it over the joint. Position the ductile iron housing over the gasket, insert bolts, and tighten evenly to the torque specified by the manufacturer.

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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GRUVLOK Clamp Coupling: 1 1/2 in x 1 1/2 in, EPDM Seal, 300 psi, Ductile Iron, Bolted, 4 7/8 in Lg (MPN 0390211498). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
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GRUVLOK Rigid Coupling: Rigid Bolted Clamp, 5 in x 5 in, Ductile Iron, EPDM Seal, 750 psi (MPN 390213214). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Fitting Pipe Size: 5 in x 5 in.
GRUVLOK Metal Pipe Straight: Straight, 8 in x 8 in, Ductile Iron, EPDM Seal, 750 psi @ 150°F (MPN 0390013571). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi @ 150°F; Fitting Pipe Size: 8 in x 8 in.
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GRUVLOK Metal Pipe Straight: Straight, 8 in x 8 in, Ductile Iron, EPDM Seal, 750 psi @ 150°F (MPN 0390013571). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi @ 150°F; Fitting Pipe Size: 8 in x 8 in.
GRUVLOK Clamp Coupling: Clamp, 6 in x 6 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390000404). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 6 in x 6 in.
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GRUVLOK Clamp Coupling: Clamp, 6 in x 6 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390000404). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 6 in x 6 in.
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GRUVLOK Rigid Coupling: Clamp, 8 in x 8 in, NBR Seal, 600 psi, Ductile Iron, Grooved x Grooved (MPN 390213666). Key specifications — Maximum Operating Pressure: 600 psi; Brand: GRUVLOK.
GRUVLOK Metal Pipe Straight: Straight, 4 in x 4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390003085). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 4 in x 4 in.
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GRUVLOK Metal Pipe Straight: Straight, 4 in x 4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390003085). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 4 in x 4 in.
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GRUVLOK Rigid Coupling: Clamp, 5 in x 5 in, EPDM Seal, 750 psi, Ductile Iron, Grooved x Grooved (MPN 390213614). Key specifications — Maximum Operating Pressure: 750 psi; Brand: GRUVLOK.