We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

GRUVLOK Couplings: Rigid Bolted, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Couplings: Rigid Bolted, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal

The GRUVLOK Rigid Bolted Coupling is a grooved pipe coupling in a 2-1/2 in x 2-1/2 in size, constructed of ductile iron with an NBR seal and rated for a maximum operating pressure of 750 psi. 3G Electric interprets…

SKU 3G-OTH-468388

Brand
GRUVLOK
Item
Couplings: Rigid Bolted, 2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal
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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

GRUVLOK
Manufacturer Part Number
0390010221
Type
2 1/2 in x 2 1/2 in, Ductile Iron, NBR Seal, 750 psi
Fitting Pipe Size
2-1/2 in x 2-1/2 in
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 Bolted Coupling is a grooved pipe coupling in a 2-1/2 in x 2-1/2 in size, constructed of ductile iron with an NBR seal and rated for a maximum operating pressure of 750 psi. 3G Electric interprets this demand and delivers this genuine industrial component, backed by specialist depth in combustion, pumps and controls across 14 industrial departments — and we supply far more than is listed.

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 Rigid Bolted Coupling used for?

A GRUVLOK Rigid Bolted Coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It provides a rigid, leak-resistant connection rated for 750 psi, suitable for high-pressure water, air, and other non-corrosive services.

What are the specifications of the GRUVLOK 0390010221 coupling?

The GRUVLOK 0390010221 is a 2-1/2 in x 2-1/2 in rigid bolted coupling made of ductile iron with an NBR seal. It has a maximum operating pressure of 750 psi and is designed for grooved-end pipe. 3G Electric supplies this genuine GRUVLOK component worldwide.

Where to buy GRUVLOK couplings in worldwide?

3G Electric supplies GRUVLOK couplings, including the 0390010221 rigid bolted model, to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 2-1/2 in ductile iron coupling.

How to install a GRUVLOK rigid bolted coupling?

To install a GRUVLOK rigid bolted coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the NBR gasket, place it over one pipe end, then slide the coupling housing over both ends. Tighten bolts evenly to the recommended torque for a 750 psi rated 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from GRUVLOK

View all GRUVLOK parts
This grooved pipe coupling joins grooved-end pipe in piping systems. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150°F. Suitable for use in fire protection, HVAC, and industrial applications requiring a leak-resistant joint
GRUVLOK
This grooved pipe coupling joins grooved-end pipe in piping systems. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150°F. Suitable for use in fire protection, HVAC, and industrial applications requiring a leak-resistant joint
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