GRUVLOK Clamp Coupling: Clamp, 4 in x 4 in, Ductile Iron, NBR Seal
The GRUVLOK Clamp Coupling is a 4 in x 4 in grooved pipe coupling made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390003721). 3G Electric interprets this…
SKU 3G-OTH-468218
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.
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Product Description
The GRUVLOK Clamp Coupling is a 4 in x 4 in grooved pipe coupling made of ductile iron with an NBR seal, rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390003721). 3G Electric interprets this demand, sources the genuine GRUVLOK component, and supports your project 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. It provides a flexible, leak-tight connection rated for 300 psi at 150 °F, using a ductile-iron housing and NBR seal.
What are the specifications of the GRUVLOK 0390003721 clamp coupling?
The GRUVLOK 0390003721 is a 4 in x 4 in grooved pipe coupling made of ductile iron with an NBR seal. Its maximum operating pressure is 300 psi at 150 °F. It is designed for 4-inch grooved pipe and supplied by 3G Electric.
Where to buy GRUVLOK clamp couplings worldwide?
3G Electric supplies genuine GRUVLOK clamp couplings worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to order the 4 in x 4 in model (MPN 0390003721) for your industrial project.
How to install a GRUVLOK grooved pipe coupling?
To install a GRUVLOK coupling, ensure pipe ends are clean and grooved per manufacturer specs. Lubricate the NBR gasket, place it over both pipe ends, then position the ductile-iron housing over the gasket. Tighten bolts evenly to the recommended torque.
Used in
Common applications for GRUVLOKGRUVLOK 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.
