We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
Image not available
GRUVLOKGrooved Pipe Couplings

GRUVLOK 2-1/2 in Grooved Rigid Coupling, Ductile Iron, EPDM Seal, 750 psi

The GRUVLOK Rigid Coupling is a 2 1/2 in x 2 1/2 in grooved pipe clamp with a bolted ductile iron body and EPDM seal, rated for a maximum operating pressure of 750 psi. 3G Electric interprets demand for this OEM part…

SKU 3G-OTH-460129

Brand
GRUVLOK
Item
2-1/2 in Grooved Rigid Coupling, Ductile Iron, EPDM Seal, 750 psi
Category
Grooved Pipe Couplings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

GRUVLOK
Manufacturer Part Number
390213608
Type
2 1/2 in x 2 1/2 in, EPDM Seal, 750 psi, Ductile Iron, Bolted
Maximum Operating Pressure
750 psi

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The GRUVLOK Rigid Coupling is a 2 1/2 in x 2 1/2 in grooved pipe clamp with a bolted ductile iron body and EPDM seal, rated for a maximum operating pressure of 750 psi. 3G Electric interprets demand for this OEM part (MPN 390213608) across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the GRUVLOK Rigid Coupling used for?

The GRUVLOK Rigid Coupling (MPN 390213608) is used to join grooved-end pipe in industrial fire protection, HVAC, and process piping systems. It provides a rigid, leak-resistant connection rated for up to 750 psi, suitable for high-pressure water, oil, and chemical lines.

What are the specifications of the GRUVLOK Rigid Coupling?

This GRUVLOK rigid coupling is a 2 1/2 in x 2 1/2 in grooved pipe clamp with a bolted ductile iron body and EPDM seal. Maximum operating pressure is 750 psi. The manufacturer part number is 390213608. It is designed for rigid, non-flexible pipe joints.

Where to buy the GRUVLOK Rigid Coupling worldwide?

3G Electric supplies the GRUVLOK Rigid Coupling (MPN 390213608) worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this OEM part.

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the EPDM gasket, place it over the pipe ends, then position the ductile iron housing halves and tighten the bolts evenly to the recommended torque. Always follow GRUVLOK installation guidelines.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from GRUVLOK

View all GRUVLOK parts →
This rigid bolted grooved pipe coupling connects 8-inch ductile iron pipe with an NBR seal, rated for a maximum operating pressure of 750 psi. With an overall length of 14 inches, it provides a secure, leak-resistant joint for industrial piping systems in water, oil, and gas applications
GRUVLOK
This rigid bolted grooved pipe coupling connects 8-inch ductile iron pipe with an NBR seal, rated for a maximum operating pressure of 750 psi. With an overall length of 14 inches, it provides a secure, leak-resistant joint for industrial piping systems in water, oil, and gas applications
This grooved pipe coupling joins 12-inch grooved-end pipes in high-pressure piping systems. It features a ductile iron body with an EPDM seal, rated for up to 800 psi. The grooved x grooved x grooved connections provide a secure, leak-resistant joint for industrial applications
GRUVLOK
This grooved pipe coupling joins 12-inch grooved-end pipes in high-pressure piping systems. It features a ductile iron body with an EPDM seal, rated for up to 800 psi. The grooved x grooved x grooved connections provide a secure, leak-resistant joint for industrial applications
This grooved pipe coupling is used to join grooved-end pipes in mechanical piping systems. Constructed from ductile iron with an EPDM seal, it provides a flexible connection rated for a maximum operating pressure of 300 psi at 150° F. The 3 in x 3 in size accommodates standard grooved pipe
GRUVLOK
This grooved pipe coupling is used to join grooved-end pipes in mechanical piping systems. Constructed from ductile iron with an EPDM seal, it provides a flexible connection rated for a maximum operating pressure of 300 psi at 150° F. The 3 in x 3 in size accommodates standard grooved pipe
This grooved pipe coupling joins 1-1/2 in grooved-end pipe in fire protection, HVAC, and industrial piping systems. Constructed of ductile iron with an EPDM seal, it provides a flexible, leak-tight connection rated for 300 psi at 150°F
GRUVLOK
This grooved pipe coupling joins 1-1/2 in grooved-end pipe in fire protection, HVAC, and industrial piping systems. Constructed of ductile iron with an EPDM seal, it provides a flexible, leak-tight connection rated for 300 psi at 150°F
This grooved pipe coupling joins pipes with grooved ends in mechanical piping systems. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi. The hinged design allows installation and maintenance without full disassembly. Fitting pipe size is 1 in x 1 in with an overall length of 4 in
GRUVLOK
This grooved pipe coupling joins pipes with grooved ends in mechanical piping systems. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi. The hinged design allows installation and maintenance without full disassembly. Fitting pipe size is 1 in x 1 in with an overall length of 4 in
This grooved pipe coupling is used to join grooved-end pipes in mechanical piping systems. It features a ductile iron housing with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150°F. Suitable for water, air, and other compatible media in commercial and industrial applications
GRUVLOK
This grooved pipe coupling is used to join grooved-end pipes in mechanical piping systems. It features a ductile iron housing with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150°F. Suitable for water, air, and other compatible media in commercial and industrial applications
This grooved pipe coupling is made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi. The hinged design allows quick installation and maintenance without full disassembly. It is used to join grooved-end pipes in fire protection, HVAC, and process piping systems
GRUVLOK
This grooved pipe coupling is made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi. The hinged design allows quick installation and maintenance without full disassembly. It is used to join grooved-end pipes in fire protection, HVAC, and process piping systems
This grooved pipe coupling is designed for joining grooved-end pipes in piping systems. It features a ductile iron body with an NBR seal and is rated for a maximum operating pressure of 300 psi. The Grooved x Grooved x Grooved connection allows for flexible and reliable joints in applications such as water, air, and non-corrosive fluid handling
GRUVLOK
This grooved pipe coupling is designed for joining grooved-end pipes in piping systems. It features a ductile iron body with an NBR seal and is rated for a maximum operating pressure of 300 psi. The Grooved x Grooved x Grooved connection allows for flexible and reliable joints in applications such as water, air, and non-corrosive fluid handling