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GRUVLOK Metal Pipe Straight: Concentric Reducer, 3 1/2 in x 3 in, Ductile Iron - Grooved Pipe Fittings
GRUVLOKGrooved Pipe Fittings

GRUVLOK Metal Pipe Straight: Concentric Reducer, 3 1/2 in x 3 in, Ductile Iron

The GRUVLOK Metal Pipe Straight: Concentric Reducer (SKU 60XR21) is a grooved pipe fitting in ductile iron, sized 3-1/2 in x 3 in, with a maximum operating pressure of 300 psi @ 150° F. 3G Electric interprets demand…

SKU 3G-OTH-460902

Brand
GRUVLOK
Item
Metal Pipe Straight: Concentric Reducer, 3 1/2 in x 3 in, Ductile Iron
Category
Grooved Pipe Fittings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390028546
Type
3 1/2 in x 3 in, Ductile Iron, 300 psi @ 150° F
Fitting Pipe Size
3-1/2 in x 3 in
Maximum Operating Pressure
300 psi @ 150° F
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Metal Pipe Straight: Concentric Reducer (SKU 60XR21) is a grooved pipe fitting in ductile iron, sized 3-1/2 in x 3 in, with a maximum operating pressure of 300 psi @ 150° F. 3G Electric interprets demand and delivers this genuine industrial component across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is a GRUVLOK concentric reducer used for?

A GRUVLOK concentric reducer connects pipes of different diameters in grooved piping systems, typically in fire protection, HVAC, or industrial process lines. It reduces flow from a 3-1/2 in to a 3 in line while maintaining a pressure rating of 300 psi @ 150° F.

What are the specifications of the GRUVLOK 60XR21 concentric reducer?

The GRUVLOK 60XR21 is a ductile iron concentric reducer with fitting pipe size 3-1/2 in x 3 in. It has a maximum operating pressure of 300 psi @ 150° F. The manufacturer part number is 0390028546. 3G Electric supplies this genuine GRUVLOK component globally.

Where to buy a GRUVLOK concentric reducer worldwide?

3G Electric supplies the GRUVLOK concentric reducer (SKU 60XR21) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this ductile iron fitting rated at 300 psi @ 150° F.

How to install a GRUVLOK grooved concentric reducer?

Installation follows standard grooved coupling procedures: lubricate the gasket, place it over the pipe ends, and tighten bolts evenly to the manufacturer's torque specification. Ensure pipe ends are clean and properly aligned. Always consult the GRUVLOK installation manual for pressure ratings and bolt torque values.

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 fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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