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GRUVLOK Clamp Coupling: Clamp, 8 in x 8 in, Ductile Iron, EPDM Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Clamp, 8 in x 8 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling is an 8 in x 8 in grooved pipe coupling made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150° F. 3G Electric interprets demand for this OEM part…

SKU 3G-OTH-468349

Brand
GRUVLOK
Item
Clamp Coupling: Clamp, 8 in x 8 in, Ductile Iron, EPDM Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390211225
Type
8 in x 8 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
8 in x 8 in
Maximum Operating Pressure
300 psi @ 150° F
View Full Spec Sheet

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

Product Description

The GRUVLOK Clamp Coupling is an 8 in x 8 in grooved pipe coupling made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150° F. 3G Electric interprets demand for this OEM part (MPN 0390211225) across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a GRUVLOK clamp coupling used for?

A GRUVLOK clamp coupling joins grooved-end pipes in industrial piping systems for water, oil, or chemical transfer. It provides a flexible, leak-resistant connection that accommodates thermal expansion and vibration, commonly used in HVAC, fire protection, and process plants.

What are the specifications of the GRUVLOK 0390211225 clamp coupling?

The GRUVLOK 0390211225 is an 8 in x 8 in grooved pipe coupling made of ductile iron with an EPDM seal. It is rated for a maximum operating pressure of 300 psi at 150° F. This OEM part is designed for 8-inch grooved-end pipe.

Where to buy a GRUVLOK 0390211225 clamp coupling worldwide?

3G Electric supplies the GRUVLOK 0390211225 clamp coupling to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to order this OEM part for your industrial piping needs.

How to install a GRUVLOK grooved pipe coupling?

To install a GRUVLOK grooved coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the EPDM gasket, place it over both pipe ends, then position the ductile iron housing over the gasket. Tighten bolts evenly to the recommended torque for 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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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 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 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.
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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.