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

3G Electric
GRUVLOK Grooved Pipe Coupling, 6 in, EPDM Seal, 1000 psi, Ductile Iron - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Grooved Pipe Coupling, 6 in, EPDM Seal, 1000 psi, Ductile Iron

The GRUVLOK Clamp Coupling (MPN 0390113408) is a 6 in x 6 in grooved pipe coupling with an EPDM seal, ductile iron construction, and grooved x grooved x grooved connections, rated for a maximum operating pressure of…

SKU 3G-OTH-460075

Brand
GRUVLOK
Item
Grooved Pipe Coupling, 6 in, EPDM Seal, 1000 psi, Ductile Iron
Part Number
0390113408
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.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

GRUVLOK
Manufacturer Part Number
0390113408
Type
EPDM Seal, 1,000 psi, Ductile Iron, Grooved x Grooved x Grooved
Standards
ASTM A536; ASTM A563; ASTM D2000; SAE J429
Catalog Page
N/A
Assembly Type
Bolted
Includes Seal
Yes
Seal Material
EPDM
Connector Type
Coupling
Finish/Coating
Zinc Galvanized
For Media Type
Acids; Air; Chemicals
Material Grade
A536 65-45-12; Grade A
Overall Length
12-23/32 in
Deflection Angle
1.09 °
Color Code Stripe
Green; Red
Country of Origin
USA (subject to change)
Movement Tolerance
Flexible
Fitting Side A Type
Grooved
Fitting Side B Type
Grooved
Fitting Side C Type
Grooved
Product Description
Grooved zinc-galvanized steel pipe couplings clamp around the ends of grooved pipes to create a secure connection.
Branch 2 Thread Size
0
Compatible Seal Type
Grade EP
Pipe Fitting Material
Ductile Iron
Maximum Operating Pressure
1,000 psi
Pipe End Separation - Maximum
1/4 in
Pipe End Separation - Minimum
0 in
Fitting Side A Outside Diameter
6-5/8 in
Fitting Side B Outside Diameter
6-5/8 in
Fitting Side A Nominal Pipe Size
6 in
Fitting Side B Nominal Pipe Size
6 in

Technical Documents

(1)
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 (MPN 0390113408) is a 6 in x 6 in grooved pipe coupling with an EPDM seal, ductile iron construction, and grooved x grooved x grooved connections, rated for a maximum operating pressure of 1,000 psi. 3G Electric interprets demand for this OEM product and delivers it across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

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. Its ductile iron body and EPDM seal handle pressures up to 1,000 psi, making it suitable for water, air, and moderate chemical service where quick mechanical assembly is needed.

What are the specifications of the GRUVLOK 0390113408 coupling?

The GRUVLOK 0390113408 is a 6 in x 6 in grooved pipe coupling with a ductile iron body, EPDM seal, and grooved x grooved x grooved connections. It has a maximum operating pressure of 1,000 psi and is designed for reliable joint integrity in commercial and industrial applications.

Where to buy GRUVLOK couplings worldwide?

3G Electric supplies GRUVLOK couplings worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source this OEM product and deliver it to your site, ensuring compliance with local import requirements.

How to install a GRUVLOK grooved coupling?

Installation requires clean, lubricated gaskets and proper alignment of grooved pipe ends. Slide the coupling housing over the joint, insert the gasket, and tighten bolts evenly to the manufacturer's torque specification. Always verify pressure rating and pipe compatibility before assembly.

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.
Not sure this is the right part? Photo-identify it

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 join two sections of 6-inch grooved-end pipe. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150° F. Suitable for industrial piping systems requiring a rigid or flexible connection
GRUVLOK
This grooved pipe coupling is used to join two sections of 6-inch grooved-end pipe. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150° F. Suitable for industrial piping systems requiring a rigid or flexible connection
This grooved pipe coupling is used to join two 8-inch pipes in fire protection, HVAC, and process piping systems. It is made of ductile iron with an EPDM seal and rated for a maximum operating pressure of 300 psi at 150°F
GRUVLOK
This grooved pipe coupling is used to join two 8-inch pipes in fire protection, HVAC, and process piping systems. It is made of ductile iron with an EPDM seal and rated for a maximum operating pressure of 300 psi at 150°F
This grooved pipe coupling joins 10-inch grooved-end pipes in fire protection, HVAC, and industrial piping systems. The ductile iron body with EPDM seal provides a maximum operating pressure of 800 psi. The flex bolted design allows limited angular deflection to accommodate thermal expansion and vibration
GRUVLOK
This grooved pipe coupling joins 10-inch grooved-end pipes in fire protection, HVAC, and industrial piping systems. The ductile iron body with EPDM seal provides a maximum operating pressure of 800 psi. The flex bolted design allows limited angular deflection to accommodate thermal expansion and vibration
Grooved pipe coupling for joining grooved-end pipes in fire protection, HVAC, and process piping systems. Constructed of ductile iron with an EPDM seal, rated for 300 psi at 150°F. Suitable for rigid or flexible connections
GRUVLOK
Grooved pipe coupling for joining grooved-end pipes in fire protection, HVAC, and process piping systems. Constructed of ductile iron with an EPDM seal, rated for 300 psi at 150°F. Suitable for rigid or flexible connections
This grooved pipe coupling joins grooved-end pipes in industrial piping systems. It features a ductile iron body with an EPDM seal and a grooved x grooved x grooved connection. Rated for a maximum operating pressure of 800 psi
GRUVLOK
This grooved pipe coupling joins grooved-end pipes in industrial piping systems. It features a ductile iron body with an EPDM seal and a grooved x grooved x grooved connection. Rated for a maximum operating pressure of 800 psi
GRUVLOK
GRUVLOK
This rigid bolted-clamp grooved pipe coupling is constructed from ductile iron with an NBR seal. It is rated for a maximum operating pressure of 600 psi and is used to join grooved-end pipe in piping systems requiring a leak-tight, mechanically locked connection
This grooved pipe coupling joins grooved-end pipe in piping systems. It features a ductile iron housing with an EPDM seal and is rated for a maximum operating pressure of 300 psi at 150°F. The coupling provides a flexible, leak-tight connection for applications such as fire protection, HVAC, and industrial piping
GRUVLOK
This grooved pipe coupling joins grooved-end pipe in piping systems. It features a ductile iron housing with an EPDM seal and is rated for a maximum operating pressure of 300 psi at 150°F. The coupling provides a flexible, leak-tight connection for applications such as fire protection, HVAC, and industrial piping
This grooved pipe coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It allows limited angular deflection to accommodate thermal expansion and minor misalignment. Constructed of ductile iron with an NBR seal, rated for a maximum operating pressure of 1,000 psi
GRUVLOK
This grooved pipe coupling joins grooved-end pipe in fire protection, HVAC, and industrial piping systems. It allows limited angular deflection to accommodate thermal expansion and minor misalignment. Constructed of ductile iron with an NBR seal, rated for a maximum operating pressure of 1,000 psi

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first