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

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

GRUVLOK Rigid Coupling: Clamp, 3 in x 3 in, EPDM Seal, 750 psi, Ductile Iron

The GRUVLOK Rigid Coupling is a 3 in x 3 in grooved pipe clamp with an EPDM seal, rated for a maximum operating pressure of 750 psi. Constructed from ductile iron with grooved x grooved connections, it is designed…

SKU 3G-OTH-460110

Brand
GRUVLOK
Item
Rigid Coupling: Clamp, 3 in x 3 in, EPDM Seal, 750 psi, Ductile Iron
Category
Grooved Pipe Couplings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

GRUVLOK
Manufacturer Part Number
390213610
Type
3 in x 3 in, EPDM Seal, 750 psi, Ductile Iron, Grooved x Grooved
Maximum Operating Pressure
750 psi
View Full Spec Sheet

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 3 in x 3 in grooved pipe clamp with an EPDM seal, rated for a maximum operating pressure of 750 psi. Constructed from ductile iron with grooved x grooved connections, it is designed for secure, rigid pipe joining in industrial systems.

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 coupling used for?

A GRUVLOK rigid coupling is used to join grooved-end pipes in industrial systems such as HVAC, fire protection, and process piping. It provides a secure, leak-resistant connection that resists axial movement, making it suitable for high-pressure applications up to 750 psi.

What are the specifications of the GRUVLOK rigid coupling 390213610?

The GRUVLOK rigid coupling model 390213610 is a 3 in x 3 in grooved pipe clamp with an EPDM seal, rated for a maximum operating pressure of 750 psi. It is constructed from ductile iron with grooved x grooved connections, designed for rigid pipe joining in industrial systems.

Where to buy GRUVLOK rigid couplings worldwide?

3G Electric supplies GRUVLOK rigid couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine GRUVLOK parts like the 390213610 coupling to customers across multiple industries, ensuring reliable delivery to your site.

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved per manufacturer specifications. Lubricate the EPDM gasket, place it over the pipe ends, then position the coupling housing over the gasket. Tighten bolts evenly to the recommended torque to achieve a rigid, leak-free joint rated for 750 psi.

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 →
GRUVLOK Clamp Coupling: Flex Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 600 psi (MPN 0390000222). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 600 psi; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
GRUVLOK
GRUVLOK Clamp Coupling: Flex Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 600 psi (MPN 0390000222). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 600 psi; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
GRUVLOK Clamp Coupling: Clamp, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390211027). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
GRUVLOK
GRUVLOK Clamp Coupling: Clamp, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390211027). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.
GRUVLOK
GRUVLOK
GRUVLOK Rigid Coupling: Clamp, 3 in x 3 in, NBR Seal, 750 psi, Ductile Iron, Grooved x Grooved (MPN 390213658). Key specifications — Maximum Operating Pressure: 750 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: Flex Bolted, 1 in x 1 in, Ductile Iron, NBR Seal, 600 psi (MPN 0390000743). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 600 psi; Fitting Pipe Size: 1 in x 1 in.
GRUVLOK
GRUVLOK Clamp Coupling: Flex Bolted, 1 in x 1 in, Ductile Iron, NBR Seal, 600 psi (MPN 0390000743). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 600 psi; Fitting Pipe Size: 1 in x 1 in.
GRUVLOK Clamp Coupling: 5 in x 4 in, EPDM Seal, 500 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390111789). Key specifications — Maximum Operating Pressure: 500 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 5 in x 4 in, EPDM Seal, 500 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390111789). Key specifications — Maximum Operating Pressure: 500 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: Bolted, 6 in x 4 in, Ductile Iron, NBR Seal, 500 psi, 11 5/8 in Overall Lg (MPN 0390008985). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 500 psi; Fitting Pipe Size: 6 in x 4 in.
GRUVLOK
GRUVLOK Clamp Coupling: Bolted, 6 in x 4 in, Ductile Iron, NBR Seal, 500 psi, 11 5/8 in Overall Lg (MPN 0390008985). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 500 psi; Fitting Pipe Size: 6 in x 4 in.
Clamp Coupling: 316 Stainless Steel, 3 in x 3 in, 6 1/2 in Lg, EPDM, 500 psi, Bolted (MPN 0390065210). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 500 psi; Standards: American National Standards; Movement Tolerance: Flexible; Fitting Pipe Size: 3 in x 3 in.
GRUVLOK
Clamp Coupling: 316 Stainless Steel, 3 in x 3 in, 6 1/2 in Lg, EPDM, 500 psi, Bolted (MPN 0390065210). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 500 psi; Standards: American National Standards; Movement Tolerance: Flexible; Fitting Pipe Size: 3 in x 3 in.
GRUVLOK Clamp Coupling: Rigid Bolted Clamp, 6 in x 6 in, Ductile Iron, EPDM Seal, 300 psi (MPN 0390060143). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi; Fitting Pipe Size: 6 in x 6 in.
GRUVLOK
GRUVLOK Clamp Coupling: Rigid Bolted Clamp, 6 in x 6 in, Ductile Iron, EPDM Seal, 300 psi (MPN 0390060143). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi; Fitting Pipe Size: 6 in x 6 in.