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

GRUVLOK Grooved Pipe Coupling - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Grooved Pipe Coupling

The GRUVLOK Clamp Coupling is a grooved pipe coupling in a 2-1/2 in x 2-1/2 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 0390000289).

SKU 3G-OTH-468189

Brand
GRUVLOK
Item
Grooved Pipe Coupling
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
0390000289
Type
2 1/2 in x 2 1/2 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
2-1/2 in x 2-1/2 in
Maximum Operating Pressure
300 psi @ 150° F

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 Clamp Coupling is a grooved pipe coupling in a 2-1/2 in x 2-1/2 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 0390000289).

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 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 0390000289 coupling?

The GRUVLOK 0390000289 is a 2-1/2 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. This model is designed for grooved pipe systems requiring a durable, leak-resistant joint.

Where to buy GRUVLOK clamp 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 0390000289 or other GRUVLOK grooved pipe coupling sizes.

How to install a GRUVLOK grooved pipe coupling?

Installation requires clean, properly grooved pipe ends. Lubricate the EPDM gasket and place it over both pipe ends. Position the ductile-iron clamp housing over the gasket, insert bolts, and tighten evenly to the torque specified by GRUVLOK. Always follow the manufacturer's instructions for pressure ratings and bolt torque.

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 grooved pipe coupling is used to connect grooved-end pipes in industrial piping systems. It features a ductile iron body and an NBR seal, rated for a maximum operating pressure of 500 psi. The coupling accommodates a 4 in x 3 in configuration with grooved x grooved x grooved connections
GRUVLOK
This grooved pipe coupling is used to connect grooved-end pipes in industrial piping systems. It features a ductile iron body and an NBR seal, rated for a maximum operating pressure of 500 psi. The coupling accommodates a 4 in x 3 in configuration with grooved x grooved x grooved connections
Bolted grooved pipe coupling for joining grooved-end pipes. Constructed of ductile iron with an NBR seal. Rated for maximum operating pressure of 500 psi. Overall length 7 1/8 in. Suitable for water, air, and other non-corrosive media in piping systems
GRUVLOK
Bolted grooved pipe coupling for joining grooved-end pipes. Constructed of ductile iron with an NBR seal. Rated for maximum operating pressure of 500 psi. Overall length 7 1/8 in. Suitable for water, air, and other non-corrosive media in piping systems
This grooved pipe coupling joins grooved-end pipes in fire protection, HVAC, and process piping systems. It accommodates minor angular deflection and thermal expansion while maintaining a leak-tight seal at pressures up to 1,000 psi
GRUVLOK
This grooved pipe coupling joins grooved-end pipes in fire protection, HVAC, and process piping systems. It accommodates minor angular deflection and thermal expansion while maintaining a leak-tight seal at pressures up to 1,000 psi
This grooved pipe coupling is used to join 6-inch ductile iron pipes in fire protection, HVAC, and process piping systems. It features a rigid, leak-resistant connection rated for 750 psi at 150°F, with an EPDM seal suitable for water and certain chemical services
GRUVLOK
This grooved pipe coupling is used to join 6-inch ductile iron pipes in fire protection, HVAC, and process piping systems. It features a rigid, leak-resistant connection rated for 750 psi at 150°F, with an EPDM seal suitable for water and certain chemical services
This bolted grooved pipe coupling connects 3-inch grooved-end pipes. It features a ductile iron housing with an NBR seal and is rated for a maximum operating pressure of 600 psi. The overall length is 8 1/8 in. Typical applications include fire protection, HVAC, and process piping systems
GRUVLOK
This bolted grooved pipe coupling connects 3-inch grooved-end pipes. It features a ductile iron housing with an NBR seal and is rated for a maximum operating pressure of 600 psi. The overall length is 8 1/8 in. Typical applications include fire protection, HVAC, and process piping systems
This grooved pipe coupling joins 2 in x 2 in pipe in industrial piping systems. It features a bolted design with EPDM gasket, flexible movement tolerance, and a maximum operating pressure of 500 psi. Length is 4 31/32 in. Meets American National Standards
GRUVLOK
This grooved pipe coupling joins 2 in x 2 in pipe in industrial piping systems. It features a bolted design with EPDM gasket, flexible movement tolerance, and a maximum operating pressure of 500 psi. Length is 4 31/32 in. Meets American National Standards
This grooved pipe coupling joins pipes of equal diameter in industrial piping systems. It features a bolted design with EPDM gasket, rated for 450 psi maximum operating pressure, and provides flexible movement tolerance to accommodate thermal expansion or vibration. Suitable for use in fire protection, HVAC, and process piping applications
GRUVLOK
This grooved pipe coupling joins pipes of equal diameter in industrial piping systems. It features a bolted design with EPDM gasket, rated for 450 psi maximum operating pressure, and provides flexible movement tolerance to accommodate thermal expansion or vibration. Suitable for use in fire protection, HVAC, and process piping applications
This grooved pipe coupling is designed for joining grooved-end pipes in mechanical piping systems. Constructed of ductile iron with an NBR seal, it is rated for a maximum operating pressure of 1,000 psi. Suitable for water, air, and light oil services in fire protection, HVAC, and industrial applications
GRUVLOK
This grooved pipe coupling is designed for joining grooved-end pipes in mechanical piping systems. Constructed of ductile iron with an NBR seal, it is rated for a maximum operating pressure of 1,000 psi. Suitable for water, air, and light oil services in fire protection, HVAC, and industrial applications