Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

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

GRUVLOK Rigid Coupling: Clamp, 8 in x 8 in, EPDM Seal, 600 psi, Ductile Iron

The GRUVLOK Rigid Coupling is an 8 in x 8 in grooved pipe clamp made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 600 psi. It connects grooved x grooved pipe ends for rigid mechanical…

SKU 3G-OTH-460135

Brand
GRUVLOK
Item
Rigid Coupling: Clamp, 8 in x 8 in, EPDM Seal, 600 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
390213618
Type
8 in x 8 in, EPDM Seal, 600 psi, Ductile Iron, Grooved x Grooved
Maximum Operating Pressure
600 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 an 8 in x 8 in grooved pipe clamp made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 600 psi. It connects grooved x grooved pipe ends for rigid mechanical joining in industrial piping systems.

Frequently Asked Questions

What is the GRUVLOK rigid coupling used for?

The GRUVLOK rigid coupling is used to mechanically join grooved-end pipes in industrial piping systems. It provides a rigid, leak-resistant connection for applications such as HVAC, fire protection, and process piping where secure, high-pressure joints are required.

What are the specifications of the GRUVLOK rigid coupling?

This GRUVLOK rigid coupling is an 8 in x 8 in clamp with a ductile iron body and EPDM seal. It is rated for a maximum operating pressure of 600 psi and connects grooved x grooved pipe ends. The manufacturer part number is 390213618.

Where to buy the GRUVLOK rigid coupling worldwide?

3G Electric supplies the GRUVLOK rigid coupling worldwide. As a global industrial sourcing partner, we handle full logistics and customs clearance to deliver this 8 in grooved pipe coupling to your site. Contact us for a quote and delivery lead time.

How to install a GRUVLOK rigid coupling?

To install a GRUVLOK rigid coupling, ensure pipe ends are clean and grooved. Lubricate the EPDM gasket and place it over one pipe end. Slide the coupling housing over the gasket, align with the second pipe, and tighten bolts evenly to the manufacturer's torque specification.

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: 5 in x 5 in, NBR Seal, 750 psi, Ductile Iron, Grooved x Grooved x Threaded (MPN 0390113280). Key specifications — Maximum Operating Pressure: 750 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 5 in x 5 in, NBR Seal, 750 psi, Ductile Iron, Grooved x Grooved x Threaded (MPN 0390113280). Key specifications — Maximum Operating Pressure: 750 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: Rigid Bolted, 6 in x 6 in, Ductile Iron, NBR Seal, 750 psi, 11 in Overall Lg (MPN 0390010304). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Fitting Pipe Size: 6 in x 6 in.
GRUVLOK
GRUVLOK Clamp Coupling: Rigid Bolted, 6 in x 6 in, Ductile Iron, NBR Seal, 750 psi, 11 in Overall Lg (MPN 0390010304). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Fitting Pipe Size: 6 in x 6 in.
GRUVLOK
GRUVLOK
GRUVLOK Rigid Coupling: Clamp, 8 in x 8 in, NBR Seal, 600 psi, Ductile Iron, Grooved x Grooved (MPN 390213866). Key specifications — Maximum Operating Pressure: 600 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: 6 in x 6 in, EPDM Seal, 300 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390209161). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 6 in x 6 in, EPDM Seal, 300 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390209161). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: 8 in x 8 in, EPDM Seal, 800 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390113410). Key specifications — Maximum Operating Pressure: 800 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 8 in x 8 in, EPDM Seal, 800 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390113410). Key specifications — Maximum Operating Pressure: 800 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: Clamp, 1 in x 1 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390211001). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 1 in x 1 in.
GRUVLOK
GRUVLOK Clamp Coupling: Clamp, 1 in x 1 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390211001). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 1 in x 1 in.
Clamp Coupling: 316 Stainless Steel, 12 in x 12 in, 18 53/64 in Lg, EPDM, 750 psi, Bolted (MPN 0390065320). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Movement Tolerance: Rigid; Fitting Pipe Size: 12 in x 12 in.
GRUVLOK
Clamp Coupling: 316 Stainless Steel, 12 in x 12 in, 18 53/64 in Lg, EPDM, 750 psi, Bolted (MPN 0390065320). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Movement Tolerance: Rigid; Fitting Pipe Size: 12 in x 12 in.
Clamp Coupling: 316 Stainless Steel, 8 in x 8 in, 13 35/64 in Lg, EPDM, 750 psi, Bolted (MPN 0390065316). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Movement Tolerance: Rigid; Fitting Pipe Size: 8 in x 8 in.
GRUVLOK
Clamp Coupling: 316 Stainless Steel, 8 in x 8 in, 13 35/64 in Lg, EPDM, 750 psi, Bolted (MPN 0390065316). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi; Movement Tolerance: Rigid; Fitting Pipe Size: 8 in x 8 in.