We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

GRUVLOK Grooved Eccentric Reducer, 4 in x 3 in, Ductile Iron, 300 psi @ 150°F - Grooved Pipe Fittings
GRUVLOKGrooved Pipe Fittings

GRUVLOK Grooved Eccentric Reducer, 4 in x 3 in, Ductile Iron, 300 psi @ 150°F

The GRUVLOK Metal Pipe Straight: Eccentric Reducer is a grooved pipe fitting in ductile iron, sized 4 in x 3 in, rated to 300 psi @ 150° F (MPN 0390032092). 3G Electric sources this OEM part across 14 industrial…

SKU 3G-OTH-460913

Brand
GRUVLOK
Item
Grooved Eccentric Reducer, 4 in x 3 in, Ductile Iron, 300 psi @ 150°F
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

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.

Technical Specifications

GRUVLOK
Manufacturer Part Number
0390032092
Type
4 in x 3 in, Ductile Iron, 300 psi @ 150° F
Fitting Pipe Size
4 in x 3 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: Eccentric Reducer is a grooved pipe fitting in ductile iron, sized 4 in x 3 in, rated to 300 psi @ 150° F (MPN 0390032092). 3G Electric sources this OEM part across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is a GRUVLOK eccentric reducer used for?

A GRUVLOK eccentric reducer connects pipes of different diameters in grooved piping systems, maintaining a flat bottom to prevent air pockets in horizontal lines. It is commonly used in HVAC, fire protection, and industrial process piping where reliable flow and pressure handling up to 300 psi are required.

What are the specifications of the GRUVLOK 4 in x 3 in eccentric reducer?

This GRUVLOK eccentric reducer has a fitting pipe size of 4 in x 3 in, is made of ductile iron, and is rated for a maximum operating pressure of 300 psi at 150° F. The manufacturer part number is 0390032092. It is a grooved pipe fitting designed for mechanical joining.

Where to buy a GRUVLOK eccentric reducer worldwide?

3G Electric supplies the GRUVLOK eccentric reducer (MPN 0390032092) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source this OEM part across 14 departments, including combustion, pumps, and controls.

How to install a GRUVLOK grooved eccentric reducer?

Installation requires aligning the grooved ends with mating couplings, lubricating the gasket, and tightening bolts to the manufacturer's torque specifications. Ensure the flat side of the eccentric reducer is oriented downward in horizontal piping to avoid trapped air. Always follow GRUVLOK's published installation instructions for safe operation.

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 grooved pipe cap is made of ductile iron and measures 1 inch with an overall length of 1-1/4 inches. It is used to seal the end of a grooved piping system, providing a secure closure for water, oil, or gas applications in industrial settings
GRUVLOK
This grooved pipe cap is made of ductile iron and measures 1 inch with an overall length of 1-1/4 inches. It is used to seal the end of a grooved piping system, providing a secure closure for water, oil, or gas applications in industrial settings
This 45° grooved pipe elbow is made of ductile iron and sized 4 in x 4 in. It is rated for a maximum operating pressure of 300 psi at 150° F. Commonly used in industrial piping systems to change flow direction, it is suitable for applications such as fire protection, HVAC, and process piping
GRUVLOK
This 45° grooved pipe elbow is made of ductile iron and sized 4 in x 4 in. It is rated for a maximum operating pressure of 300 psi at 150° F. Commonly used in industrial piping systems to change flow direction, it is suitable for applications such as fire protection, HVAC, and process piping
This GRUVLOK grooved pipe fitting is a 90° long radius elbow made of ductile iron, sized 8 in x 8 in. It is rated for a maximum operating pressure of 300 psi at 150° F. Used in grooved piping systems to change flow direction with reduced pressure drop, it is suitable for applications such as fire protection, HVAC, and industrial process lines
GRUVLOK
This GRUVLOK grooved pipe fitting is a 90° long radius elbow made of ductile iron, sized 8 in x 8 in. It is rated for a maximum operating pressure of 300 psi at 150° F. Used in grooved piping systems to change flow direction with reduced pressure drop, it is suitable for applications such as fire protection, HVAC, and industrial process lines
This grooved pipe fitting is an eccentric reducer used to connect pipes of different diameters while maintaining a consistent pipe bottom or top level. It is suited for applications where flow direction and drainage are important, such as in HVAC, fire protection, and industrial process piping. The fitting has a 6-inch by 2-1/2-inch pipe size and an overall length of 11-1/2 inches
GRUVLOK
This grooved pipe fitting is an eccentric reducer used to connect pipes of different diameters while maintaining a consistent pipe bottom or top level. It is suited for applications where flow direction and drainage are important, such as in HVAC, fire protection, and industrial process piping. The fitting has a 6-inch by 2-1/2-inch pipe size and an overall length of 11-1/2 inches
This GRUVLOK grooved pipe fitting is a concentric reducer elbow with a 12 in x 4 in fitting pipe size and a 7 in overall length. It connects two pipes of different diameters in a grooved piping system, allowing a smooth transition from 12 in to 4 in. Typical applications include industrial water, HVAC, and fire-protection systems where a compact fitting is needed
GRUVLOK
This GRUVLOK grooved pipe fitting is a concentric reducer elbow with a 12 in x 4 in fitting pipe size and a 7 in overall length. It connects two pipes of different diameters in a grooved piping system, allowing a smooth transition from 12 in to 4 in. Typical applications include industrial water, HVAC, and fire-protection systems where a compact fitting is needed
This grooved pipe tee is used to branch flow in three directions in mechanical piping systems. Constructed of ductile iron with an EPDM seal, it has a maximum operating pressure of 300 psi at 150°F. Suitable for water and certain chemical services in fire protection, HVAC, and industrial applications
GRUVLOK
This grooved pipe tee is used to branch flow in three directions in mechanical piping systems. Constructed of ductile iron with an EPDM seal, it has a maximum operating pressure of 300 psi at 150°F. Suitable for water and certain chemical services in fire protection, HVAC, and industrial applications
This grooved pipe fitting creates a 45-degree branch connection from a main line. It features grooved x grooved connections for use with standard grooved-end pipe sections. The carbon steel body with EPDM seal is suited for fire protection, HVAC, and industrial piping systems requiring efficient flow distribution
GRUVLOK
This grooved pipe fitting creates a 45-degree branch connection from a main line. It features grooved x grooved connections for use with standard grooved-end pipe sections. The carbon steel body with EPDM seal is suited for fire protection, HVAC, and industrial piping systems requiring efficient flow distribution
This grooved pipe cap is made of 304 stainless steel and designed to seal the end of a 2-inch grooved pipe system. It has a length of 1 1/16 inches and a maximum operating pressure of 300 psi. The fitting conforms to ASTM A403CR standards and is used in industrial piping applications such as water, chemical, and HVAC lines
GRUVLOK
This grooved pipe cap is made of 304 stainless steel and designed to seal the end of a 2-inch grooved pipe system. It has a length of 1 1/16 inches and a maximum operating pressure of 300 psi. The fitting conforms to ASTM A403CR standards and is used in industrial piping applications such as water, chemical, and HVAC lines