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

3G Electric
RFQ CartGet a QuoteSign inSign up
GRUVLOK Metal Pipe Flange: Flange, 8 in, 300 psi, Ductile Iron, Grooved - Grooved Pipe Flanges
GRUVLOKGrooved Pipe Flanges

GRUVLOK Metal Pipe Flange: Flange, 8 in, 300 psi, Ductile Iron, Grooved

The GRUVLOK Metal Pipe Flange (SKU 408FW1, MPN 0390202521) is an 8-inch grooved pipe flange made of ductile iron, rated for a maximum operating pressure of 300 psi and a length of 3 inches. This flange is designed…

SKU 3G-OTH-468598

Brand
GRUVLOK
Item
Metal Pipe Flange: Flange, 8 in, 300 psi, Ductile Iron, Grooved
Category
Grooved Pipe Flanges
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

GRUVLOK
Manufacturer Part Number
0390202521
Type
8 in, 300 psi, Ductile Iron, Grooved
Lg
3 in
Maximum Operating Pressure
300 psi
View Full Spec Sheet

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 Flange (SKU 408FW1, MPN 0390202521) is an 8-inch grooved pipe flange made of ductile iron, rated for a maximum operating pressure of 300 psi and a length of 3 inches. This flange is designed for grooved-end piping systems, providing a reliable connection point in industrial applications.

Frequently Asked Questions

What is the GRUVLOK 8-inch grooved pipe flange used for?

The GRUVLOK 8-inch grooved pipe flange provides a reliable connection point in grooved-end piping systems for industrial applications such as water, oil, and gas lines. It is rated for 300 psi maximum operating pressure and made of ductile iron.

What are the specifications of the GRUVLOK 0390202521 flange?

The GRUVLOK 0390202521 is an 8-inch grooved pipe flange with a 3-inch length, made of ductile iron, and rated for a maximum operating pressure of 300 psi. It is designed for grooved-end piping systems in industrial settings.

Where to buy GRUVLOK flanges worldwide?

3G Electric supplies GRUVLOK flanges worldwide, handling full logistics and customs clearance for international delivery. As a global industrial solutions provider, we source and deliver genuine GRUVLOK components to support your piping system needs.

How to install a GRUVLOK grooved pipe flange?

Installation requires aligning the grooved flange with the pipe end, inserting the gasket, and securing with coupling housing and bolts. Tighten bolts evenly to the manufacturer's torque specification. Always follow GRUVLOK's published installation instructions for proper sealing and joint integrity.

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 flanges. 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 →
GRUVLOK Metal Pipe Flange: Flange, 5 in, Ductile Iron, EPDM Seal, 750 psi, 12 5/8 in Overall Lg (MPN 0390214807). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 5 in, Ductile Iron, EPDM Seal, 750 psi, 12 5/8 in Overall Lg (MPN 0390214807). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 750 psi.
GRUVLOK Metal Pipe Flange: Flange, 2 in, EPDM Seal, 300 psi, Ductile Iron, Grooved, 8 3/8 in Lg (MPN 0390210003). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 2 in, EPDM Seal, 300 psi, Ductile Iron, Grooved, 8 3/8 in Lg (MPN 0390210003). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK Metal Pipe Flange: Flange, 3 in, Ductile Iron, NBR Seal, 300 psi, 10 1/2 in Overall Lg (MPN 0390201549). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 3 in, Ductile Iron, NBR Seal, 300 psi, 10 1/2 in Overall Lg (MPN 0390201549). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi.
GRUVLOK Metal Pipe Flange: Flange, 2 1/2 in, NBR Seal, 300 psi, Ductile Iron, Grooved, 9 1/2 in Lg (MPN 0390210524). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 2 1/2 in, NBR Seal, 300 psi, Ductile Iron, Grooved, 9 1/2 in Lg (MPN 0390210524). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK Metal Pipe Flange: Flange, 6 in, NBR Seal, 300 psi, Ductile Iron, Grooved, 14 in Lg (MPN 0390210680). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 6 in, NBR Seal, 300 psi, Ductile Iron, Grooved, 14 in Lg (MPN 0390210680). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK Metal Pipe Flange: Flange, 3 in, EPDM Seal, 750 psi, Ductile Iron, Grooved, 9 7/8 in Lg (MPN 0390214047). Key specifications — Maximum Operating Pressure: 750 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 3 in, EPDM Seal, 750 psi, Ductile Iron, Grooved, 9 7/8 in Lg (MPN 0390214047). Key specifications — Maximum Operating Pressure: 750 psi; Brand: GRUVLOK.
GRUVLOK Metal Pipe Flange: Flange, 3 in, 300 psi, Ductile Iron, Grooved, 2 1/2 in Lg (MPN 0390202448). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 3 in, 300 psi, Ductile Iron, Grooved, 2 1/2 in Lg (MPN 0390202448). Key specifications — Maximum Operating Pressure: 300 psi; Brand: GRUVLOK.
GRUVLOK Metal Pipe Flange: Flange, 2 1/2 in, Ductile Iron, 300 psi (MPN 0390202026). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi.
GRUVLOK
GRUVLOK Metal Pipe Flange: Flange, 2 1/2 in, Ductile Iron, 300 psi (MPN 0390202026). Key specifications — Brand: GRUVLOK; Maximum Operating Pressure: 300 psi.