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

GRUVLOK Metal Pipe Straight: Concentric Reducer, 3 in x 1 1/4 in, Ductile Iron - Grooved Pipe Fittings
GRUVLOKGrooved Pipe Fittings

GRUVLOK Metal Pipe Straight: Concentric Reducer, 3 in x 1 1/4 in, Ductile Iron

The GRUVLOK Metal Pipe Straight: Concentric Reducer (SKU 3G-OTH-461038) is a grooved pipe fitting in ductile iron, sized 3 in x 1-1/4 in, with a maximum operating pressure of 300 psi @ 150° F. 3G Electric sources…

SKU 3G-OTH-461038

Brand
GRUVLOK
Item
Metal Pipe Straight: Concentric Reducer, 3 in x 1 1/4 in, Ductile Iron
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
0390028454
Type
3 in x 1 1/4 in, Ductile Iron, 300 psi @ 150° F
Fitting Pipe Size
3 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-461038) is a grooved pipe fitting in ductile iron, sized 3 in x 1-1/4 in, with a maximum operating pressure of 300 psi @ 150° F. 3G Electric sources this OEM part (MPN 0390028454) 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 pipes of different diameters in grooved piping systems, typically in fire protection, HVAC, or industrial process lines. It reduces flow from a 3 in line to a 1-1/4 in line while maintaining a straight, leak-resistant joint.

What are the specifications of the GRUVLOK 0390028454 concentric reducer?

The GRUVLOK 0390028454 is a ductile iron concentric reducer with fitting pipe size 3 in x 1-1/4 in. It has a maximum operating pressure of 300 psi @ 150° F. The OEM part number is 0390028454. 3G Electric supplies this genuine GRUVLOK fitting worldwide.

Where to buy a GRUVLOK 3 in x 1-1/4 in concentric reducer worldwide?

3G Electric supplies the GRUVLOK 0390028454 concentric reducer (MPN 0390028454) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote on this ductile iron grooved 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, then engage the coupling housing over the groove. Tighten bolts evenly to the manufacturer's torque specification. Always verify pipe alignment and pressure rating before system pressurization.

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

More from GRUVLOK

View all GRUVLOK parts
This GRUVLOK grooved pipe elbow features an 11 1/4° angle for gradual directional changes in piping systems. It has a 12 in x 12 in grooved x grooved connection, designed for use with 12-inch nominal pipe and mechanical couplings. Suitable for industrial applications such as fire protection, HVAC, and process piping
GRUVLOK
This GRUVLOK grooved pipe elbow features an 11 1/4° angle for gradual directional changes in piping systems. It has a 12 in x 12 in grooved x grooved connection, designed for use with 12-inch nominal pipe and mechanical couplings. Suitable for industrial applications such as fire protection, HVAC, and process piping
This 90° elbow is a grooved pipe fitting used to change flow direction in piping systems. Made of 304 stainless steel, it measures 2-1/2 inches on both ends and features a grooved connection for mechanical coupling. Typical applications include fire protection, HVAC, and industrial process lines
GRUVLOK
This 90° elbow is a grooved pipe fitting used to change flow direction in piping systems. Made of 304 stainless steel, it measures 2-1/2 inches on both ends and features a grooved connection for mechanical coupling. Typical applications include fire protection, HVAC, and industrial process lines
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