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
GRUVLOK Clamp Coupling: Clamp, 4 in x 4 in, Ductile Iron, EPDM Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Clamp, 4 in x 4 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling is a 4 in x 4 in grooved pipe coupling made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390211787). 3G Electric interprets this…

SKU 3G-OTH-468342

Brand
GRUVLOK
Item
Clamp Coupling: Clamp, 4 in x 4 in, Ductile Iron, EPDM Seal
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
0390211787
Type
4 in x 4 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
4 in x 4 in
Maximum Operating Pressure
300 psi @ 150° F
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 Clamp Coupling is a 4 in x 4 in grooved pipe coupling made of ductile iron with an EPDM seal, rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390211787). 3G Electric interprets this demand and delivers this genuine industrial coupling across 14 departments, with specialist depth in combustion, pumps and controls as an authorised distributor. We source, quote, and support the right solution — not an infinite warehouse.

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 flexible, leak-tight connection rated for 300 psi at 150° F. 3G Electric supplies this genuine ductile iron coupling with EPDM seal for worldwide delivery.

What are the specifications of the GRUVLOK 0390211787 coupling?

The GRUVLOK 0390211787 is a 4 in x 4 in grooved pipe coupling made of ductile iron with an EPDM seal. Its maximum operating pressure is 300 psi at 150° F. 3G Electric sources this genuine GRUVLOK part and supports global procurement with full logistics and customs handling.

Where to buy a GRUVLOK 4 in clamp coupling worldwide?

3G Electric supplies the genuine GRUVLOK 4 in clamp coupling (MPN 0390211787) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this ductile iron coupling rated for 300 psi at 150° F.

How to install a GRUVLOK grooved pipe coupling?

Installation requires aligning the coupling housing over the pipe grooves, lubricating the EPDM gasket, and tightening bolts evenly to the manufacturer's torque specification. Always follow GRUVLOK's published instructions. 3G Electric can provide technical support and genuine replacement parts for your project.

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, EPDM Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390095347). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 5 in x 5 in, EPDM Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390095347). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK
GRUVLOK Rigid Coupling: Rigid Bolted Clamp, 6 in x 6 in, Ductile Iron, EPDM Seal, 700 psi (MPN 390213416). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 700 psi; Fitting Pipe Size: 6 in x 6 in.
GRUVLOK Clamp Coupling: 3 in x 3 in, NBR Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390095925). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 3 in x 3 in, NBR Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390095925). Key specifications — Maximum Operating Pressure: 1,000 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: Clamp, 10 in x 10 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390013589). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 10 in x 10 in.
GRUVLOK
GRUVLOK Clamp Coupling: Clamp, 10 in x 10 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390013589). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 10 in x 10 in.
GRUVLOK Metal Pipe Straight: Straight, 5 in x 5 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390007425). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 5 in x 5 in.
GRUVLOK
GRUVLOK Metal Pipe Straight: Straight, 5 in x 5 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F (MPN 0390007425). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi @ 150° F; Fitting Pipe Size: 5 in x 5 in.
GRUVLOK Clamp Coupling: 6 in x 4 in, EPDM Seal, 500 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390111821). Key specifications — Maximum Operating Pressure: 500 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Clamp Coupling: 6 in x 4 in, EPDM Seal, 500 psi, Ductile Iron, Grooved x Grooved x Grooved (MPN 0390111821). Key specifications — Maximum Operating Pressure: 500 psi; Brand: GRUVLOK.
GRUVLOK Clamp Coupling: Rigid Bolted Clamp, 10 in x 10 in, Ductile Iron, EPDM Seal, 300 psi (MPN 0390060168). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi; Fitting Pipe Size: 10 in x 10 in.
GRUVLOK
GRUVLOK Clamp Coupling: Rigid Bolted Clamp, 10 in x 10 in, Ductile Iron, EPDM Seal, 300 psi (MPN 0390060168). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi; Fitting Pipe Size: 10 in x 10 in.
GRUVLOK Clamp Coupling: Flex Bolted, 1 1/4 in x 1 1/4 in, Ductile Iron, EPDM Seal, 1,000 psi (MPN 0390004471). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 1,000 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, 1,000 psi (MPN 0390004471). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 1,000 psi; Fitting Pipe Size: 1-1/4 in x 1-1/4 in.