Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

GRUVLOK 8 in x 4 in Ductile Iron Eccentric Reducer, 300 psi @ 150° F - Grooved Pipe Fittings
GRUVLOKGrooved Pipe Fittings

GRUVLOK 8 in x 4 in Ductile Iron Eccentric Reducer, 300 psi @ 150° F

The GRUVLOK Metal Pipe Straight: Eccentric Reducer is a grooved pipe fitting in ductile iron, sized 8 in x 4 in, rated for 300 psi @ 150° F (MPN 0390032209). 3G Electric sources this OEM part across 14 industrial…

SKU 3G-OTH-460968

Brand
GRUVLOK
Item
8 in x 4 in Ductile Iron Eccentric Reducer, 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 — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

GRUVLOK
Manufacturer Part Number
0390032209
Type
8 in x 4 in, Ductile Iron, 300 psi @ 150° F
Fitting Pipe Size
8 in x 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: Eccentric Reducer is a grooved pipe fitting in ductile iron, sized 8 in x 4 in, rated for 300 psi @ 150° F (MPN 0390032209). 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 transition is required.

What are the specifications of the GRUVLOK 8 in x 4 in eccentric reducer?

This GRUVLOK eccentric reducer is ductile iron, sized 8 in x 4 in, with a maximum operating pressure of 300 psi @ 150° F. The manufacturer part number is 0390032209. It is a grooved pipe fitting designed for mechanical joining without welding.

Where to buy GRUVLOK eccentric reducers worldwide?

3G Electric supplies GRUVLOK eccentric reducers worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source this OEM part across 14 departments, including combustion, pumps, and controls, and deliver to your site.

How to select the right GRUVLOK eccentric reducer for a piping system?

Select a GRUVLOK eccentric reducer by matching the larger and smaller pipe sizes (e.g., 8 in x 4 in), pressure rating (300 psi @ 150° F), and material (ductile iron). Ensure compatibility with grooved couplings and gaskets for your fluid type and temperature.

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 cross is used in piping systems to split flow in four directions. It features a carbon steel body with an EPDM seal and grooved x grooved connections for mechanical coupling installation. The fitting measures 6 inches in length and is suitable for medium-pressure water and other compatible services
GRUVLOK
This grooved pipe cross is used in piping systems to split flow in four directions. It features a carbon steel body with an EPDM seal and grooved x grooved connections for mechanical coupling installation. The fitting measures 6 inches in length and is suitable for medium-pressure water and other compatible services
This grooved pipe fitting is a 45° lateral wye (also known as a wye branch) used to create a 45-degree branch connection from a main pipeline. Constructed of carbon steel with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150°F. The grooved ends allow for fast, rigid or flexible joining without welding, suitable for fire protection, HVAC, and industrial piping systems
GRUVLOK
This grooved pipe fitting is a 45° lateral wye (also known as a wye branch) used to create a 45-degree branch connection from a main pipeline. Constructed of carbon steel with an EPDM seal, it is rated for a maximum operating pressure of 300 psi at 150°F. The grooved ends allow for fast, rigid or flexible joining without welding, suitable for fire protection, HVAC, and industrial piping systems
This GRUVLOK grooved pipe fitting is a concentric reducer with a 6-inch by 2-inch grooved x grooved configuration and a 4-inch length. It is used in industrial piping systems to transition flow from a larger diameter pipe to a smaller one, commonly applied in water, HVAC, and fire protection systems
GRUVLOK
This GRUVLOK grooved pipe fitting is a concentric reducer with a 6-inch by 2-inch grooved x grooved configuration and a 4-inch length. It is used in industrial piping systems to transition flow from a larger diameter pipe to a smaller one, commonly applied in water, HVAC, and fire protection systems
This 45° grooved pipe elbow is made of ductile iron and sized 1-1/2 in x 1-1/2 in. It is rated for a maximum operating pressure of 300 psi at 150°F. Used in mechanical piping systems to change flow direction, it is suitable for applications such as fire protection, HVAC, and industrial piping
GRUVLOK
This 45° grooved pipe elbow is made of ductile iron and sized 1-1/2 in x 1-1/2 in. It is rated for a maximum operating pressure of 300 psi at 150°F. Used in mechanical piping systems to change flow direction, it is suitable for applications such as fire protection, HVAC, and industrial piping
This grooved pipe fitting connects three 3-inch pipes at a 45-degree angle. Constructed of carbon steel with an EPDM seal, it is rated for 300 psi at 150°F. Suitable for use in fire protection, HVAC, and industrial piping systems with standard grooved-end pipe
GRUVLOK
This grooved pipe fitting connects three 3-inch pipes at a 45-degree angle. Constructed of carbon steel with an EPDM seal, it is rated for 300 psi at 150°F. Suitable for use in fire protection, HVAC, and industrial piping systems with standard grooved-end pipe
Grooved pipe fitting for changing flow direction in piping systems. Connects to grooved-end pipe via mechanical couplings for assembly without welding. Used in fire protection, HVAC, and industrial applications
GRUVLOK
Grooved pipe fitting for changing flow direction in piping systems. Connects to grooved-end pipe via mechanical couplings for assembly without welding. Used in fire protection, HVAC, and industrial applications
This grooved pipe tee connects three pipes of equal size in a grooved piping system. Constructed from carbon steel with an EPDM seal, it is suitable for use in water and mild chemical service. Commonly applied in fire protection, HVAC, and industrial process lines
GRUVLOK
This grooved pipe tee connects three pipes of equal size in a grooved piping system. Constructed from carbon steel with an EPDM seal, it is suitable for use in water and mild chemical service. Commonly applied in fire protection, HVAC, and industrial process lines
This grooved pipe fitting creates a 45-degree branch connection from a main line. Constructed of carbon steel with an EPDM seal, it is sized 5 in x 5 in x 5 in with a 5 in overall length. Used in mechanical piping systems for applications such as fire protection, HVAC, and industrial process piping
GRUVLOK
This grooved pipe fitting creates a 45-degree branch connection from a main line. Constructed of carbon steel with an EPDM seal, it is sized 5 in x 5 in x 5 in with a 5 in overall length. Used in mechanical piping systems for applications such as fire protection, HVAC, and industrial process piping