We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

GRUVLOK Grooved Concentric Reducer - Grooved Pipe Fittings
GRUVLOKGrooved Pipe Fittings

GRUVLOK Grooved Concentric Reducer

The GRUVLOK Metal Pipe Straight: Concentric Reducer (SKU 3G-OTH-460850) is a grooved pipe fitting in ductile iron, sized 2 in x 1-1/4 in, with a maximum operating pressure of 300 psi @ 150° F. 3G Electric sources…

SKU 3G-OTH-460850

Brand
GRUVLOK
Item
Grooved Concentric Reducer
Category
Grooved Pipe Fittings
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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

GRUVLOK
Manufacturer Part Number
0390028348
Type
2 in x 1 1/4 in, Ductile Iron, 300 psi @ 150° F
Fitting Pipe Size
2 in x 1-1/4 in
Maximum Operating Pressure
300 psi @ 150° F

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 Metal Pipe Straight: Concentric Reducer (SKU 3G-OTH-460850) is a grooved pipe fitting in ductile iron, sized 2 in x 1-1/4 in, with a maximum operating pressure of 300 psi @ 150° F. 3G Electric sources this OEM part (MPN 0390028348) across 14 industrial departments, with specialist depth in combustion, pumps and controls.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a GRUVLOK concentric reducer used for?

A GRUVLOK concentric reducer connects two pipes of different diameters in a grooved piping system, reducing flow from a 2 in to a 1-1/4 in line. It is commonly used in fire protection, HVAC, and industrial process piping where ductile iron fittings rated to 300 psi @ 150° F are required.

What are the specifications of the GRUVLOK 0390028348 concentric reducer?

The GRUVLOK 0390028348 is a ductile iron concentric reducer with a fitting pipe size of 2 in x 1-1/4 in. It has a maximum operating pressure of 300 psi @ 150° F and carries MPN 0390028348. This grooved fitting is designed for mechanical joining of steel or iron pipe.

Where to buy a GRUVLOK 0390028348 concentric reducer worldwide?

3G Electric supplies the GRUVLOK 0390028348 concentric reducer (MPN 0390028348) to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance for international delivery. Contact us to order this ductile iron fitting for your piping project.

How to install a GRUVLOK grooved concentric reducer?

Installation follows standard grooved-pipe practices: lubricate the gasket, place it over the pipe end, insert the reducer, and secure with coupling housing and bolts. Tighten bolts evenly to the manufacturer's torque specification. Always verify pipe-end preparation and gasket compatibility for the 300 psi @ 150° F rating.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Grooved pipe fitting for connecting pipes of different diameters while maintaining a flat bottom to prevent air pockets. Suitable for use in HVAC, fire protection, and process piping systems. Constructed of ductile iron with a maximum operating pressure of 300 psi at 150° F
GRUVLOK
Grooved pipe fitting for connecting pipes of different diameters while maintaining a flat bottom to prevent air pockets. Suitable for use in HVAC, fire protection, and process piping systems. Constructed of ductile iron with a maximum operating pressure of 300 psi at 150° F
Straight grooved pipe fitting for connecting pipes in commercial and industrial piping systems. Made of ductile iron with a 3 in x 2-1/2 in size, rated for maximum operating pressure of 300 psi at 150°F. Suitable for applications such as fire protection, HVAC, and process water
GRUVLOK
Straight grooved pipe fitting for connecting pipes in commercial and industrial piping systems. Made of ductile iron with a 3 in x 2-1/2 in size, rated for maximum operating pressure of 300 psi at 150°F. Suitable for applications such as fire protection, HVAC, and process water
Grooved concentric reducer for transitioning between pipe sizes in grooved piping systems. Reduces from 2 1/2 in to 1 in with grooved ends for mechanical coupling. Length: 2 1/2 in. Used in commercial and industrial applications for water, oil, or gas services
GRUVLOK
Grooved concentric reducer for transitioning between pipe sizes in grooved piping systems. Reduces from 2 1/2 in to 1 in with grooved ends for mechanical coupling. Length: 2 1/2 in. Used in commercial and industrial applications for water, oil, or gas services
This concentric reducer connects a 6-inch grooved pipe to a 5-inch grooved pipe, enabling a smooth reduction in diameter. It is used in industrial piping systems for water, HVAC, and process lines where reliable, leak-free connections are required
GRUVLOK
This concentric reducer connects a 6-inch grooved pipe to a 5-inch grooved pipe, enabling a smooth reduction in diameter. It is used in industrial piping systems for water, HVAC, and process lines where reliable, leak-free connections are required
GRUVLOK
GRUVLOK
This outlet pipe clamp is a tee-type fitting for grooved piping systems, used to create a branch connection in fire protection, HVAC, or industrial process lines. Constructed of ductile iron with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150°F. The fitting joins three pipes at a tee junction, providing a leak-resistant seal under pressure
This 45° grooved pipe elbow is used to change flow direction in piping systems. It connects 10-inch grooved-end pipes and is suitable for commercial and industrial applications such as fire protection, HVAC, and process lines
GRUVLOK
This 45° grooved pipe elbow is used to change flow direction in piping systems. It connects 10-inch grooved-end pipes and is suitable for commercial and industrial applications such as fire protection, HVAC, and process lines

More from GRUVLOK

View all GRUVLOK parts
This 45° grooved pipe elbow is used to change flow direction in industrial piping systems. It is designed for use with grooved-end pipe and couplings in applications such as fire protection, HVAC, and process piping
GRUVLOK
This 45° grooved pipe elbow is used to change flow direction in industrial piping systems. It is designed for use with grooved-end pipe and couplings in applications such as fire protection, HVAC, and process piping
This grooved pipe fitting is a concentric reducer used to connect a 4-inch pipe to a 3-inch pipe in grooved piping systems. It is commonly applied in industrial water, HVAC, and fire protection systems where flow reduction is required
GRUVLOK
This grooved pipe fitting is a concentric reducer used to connect a 4-inch pipe to a 3-inch pipe in grooved piping systems. It is commonly applied in industrial water, HVAC, and fire protection systems where flow reduction is required
This grooved pipe cross provides a four-way branch connection in piping systems. It features a 3 in x 3 in equal-diameter design with Grooved x Grooved ends for use with grooved couplings. Constructed from carbon steel with an EPDM seal, it is suited for commercial and industrial applications such as fire protection and HVAC
GRUVLOK
This grooved pipe cross provides a four-way branch connection in piping systems. It features a 3 in x 3 in equal-diameter design with Grooved x Grooved ends for use with grooved couplings. Constructed from carbon steel with an EPDM seal, it is suited for commercial and industrial applications such as fire protection and HVAC
Grooved pipe fitting for sealing the end of a grooved piping system. Constructed of ductile iron with a maximum operating pressure of 1,000 psi. Suitable for use in industrial water, oil, gas, fire protection, HVAC, and process piping applications
GRUVLOK
Grooved pipe fitting for sealing the end of a grooved piping system. Constructed of ductile iron with a maximum operating pressure of 1,000 psi. Suitable for use in industrial water, oil, gas, fire protection, HVAC, and process piping applications
This GRUVLOK concentric reducer is a ductile iron grooved pipe fitting sized 14 in x 12 in, rated for 300 psi at 150°F. It connects pipes of different diameters in grooved piping systems, reducing flow from a 14-inch to a 12-inch line while maintaining pressure integrity. Suitable for commercial and industrial applications requiring a reliable reduction in pipe diameter
GRUVLOK
This GRUVLOK concentric reducer is a ductile iron grooved pipe fitting sized 14 in x 12 in, rated for 300 psi at 150°F. It connects pipes of different diameters in grooved piping systems, reducing flow from a 14-inch to a 12-inch line while maintaining pressure integrity. Suitable for commercial and industrial applications requiring a reliable reduction in pipe diameter
This grooved pipe tee is used to branch fluid flow in piping systems. It is made of carbon steel with an EPDM seal and rated for 300 psi at 150°F. The fitting has a 2-1/2 in x 2-1/2 in x 2 in size and is suitable for commercial and industrial applications
GRUVLOK
This grooved pipe tee is used to branch fluid flow in piping systems. It is made of carbon steel with an EPDM seal and rated for 300 psi at 150°F. The fitting has a 2-1/2 in x 2-1/2 in x 2 in size and is suitable for commercial and industrial applications
This 45° grooved pipe elbow is made of ductile iron and sized 6 in x 6 in. It is rated for a maximum operating pressure of 300 psi at 150°F. Used to change flow direction in grooved piping systems for water, HVAC, and process lines
GRUVLOK
This 45° grooved pipe elbow is made of ductile iron and sized 6 in x 6 in. It is rated for a maximum operating pressure of 300 psi at 150°F. Used to change flow direction in grooved piping systems for water, HVAC, and process lines
This grooved pipe tee is made from A536 65-45-12 stainless steel with a 1 in x 1 in x 1 in size and 1 in length. It includes an EPDM gasket and is rated for a maximum operating pressure of 300 psi. FM Approved. Used in grooved piping systems to create a T-shaped junction for fluid or gas flow
GRUVLOK
This grooved pipe tee is made from A536 65-45-12 stainless steel with a 1 in x 1 in x 1 in size and 1 in length. It includes an EPDM gasket and is rated for a maximum operating pressure of 300 psi. FM Approved. Used in grooved piping systems to create a T-shaped junction for fluid or gas flow