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GRUVLOK Clamp Coupling: 3 in x 2 1/2 in, NBR Seal, 500 psi, Ductile Iron, Bolted - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: 3 in x 2 1/2 in, NBR Seal, 500 psi, Ductile Iron, Bolted

The GRUVLOK 408HH3 Clamp Coupling is a 3 in x 2 1/2 in grooved pipe coupling with a bolted ductile iron design and NBR seal, rated for a maximum operating pressure of 500 psi and measuring 7 1/8 in in length (MPN…

SKU 3G-OTH-460065

Brand
GRUVLOK
Item
Clamp Coupling: 3 in x 2 1/2 in, NBR Seal, 500 psi, Ductile Iron, Bolted
Category
Grooved Pipe Couplings
Available to Order
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390111144
Type
NBR Seal, 500 psi, Ductile Iron, Bolted
Lg
7 1/8 in
Maximum Operating Pressure
500 psi
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK 408HH3 Clamp Coupling is a 3 in x 2 1/2 in grooved pipe coupling with a bolted ductile iron design and NBR seal, rated for a maximum operating pressure of 500 psi and measuring 7 1/8 in in length (MPN 0390111144). 3G Electric sources this genuine GRUVLOK component across 14 industrial departments, with specialist expertise in combustion, pumps and controls ensuring accurate specification and support.

Frequently Asked Questions

What is the GRUVLOK 408HH3 clamp coupling used for?

The GRUVLOK 408HH3 clamp coupling is used to join grooved-end pipes in industrial fire protection, HVAC, and process piping systems. Its bolted ductile iron design with NBR seal provides a reliable, leak-tight connection rated for up to 500 psi.

What are the specifications of the GRUVLOK 408HH3 clamp coupling?

The GRUVLOK 408HH3 is a 3 in x 2 1/2 in grooved pipe coupling with a bolted ductile iron body, NBR seal, and maximum operating pressure of 500 psi. It measures 7 1/8 in in length and carries MPN 0390111144.

Where to buy GRUVLOK 408HH3 clamp coupling worldwide?

3G Electric supplies the genuine GRUVLOK 408HH3 clamp coupling worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source this component across 14 departments, with specialist expertise in combustion, pumps and controls for accurate specification support.

How to install a GRUVLOK 408HH3 clamp coupling?

Installation requires aligning the coupling over two grooved pipe ends, ensuring the NBR seal is properly seated. Tighten the bolts evenly to the manufacturer’s torque specification. Always follow GRUVLOK’s published installation instructions for safe, leak-free operation at rated pressure.

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.

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