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

3G Electric
RFQ CartGet a QuoteSign inSign up
NIBCO Pipe Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80 - UV-Resistant Schedule 80 Pipe Flanges
NIBCOUV-Resistant Schedule 80 Pipe Flanges

NIBCO Pipe Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80

The NIBCO 6551-H 112 is a UV-Resistant Schedule 80 Pipe Flange made from polyvinylidene (ASTM D3222 Type I material). This Class 150 flange fits 1 1/2 in pipe with a 5 in outside diameter in a red finish.

SKU 3G-OTH-708541

Brand
NIBCO
Item
Pipe Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80
Category
UV-Resistant Schedule 80 Pipe Flanges
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

Technical Specifications

NIBCO
Manufacturer Part Number
6551-H 112
Type
Schedule 80, Red
Fitting Pipe Size
1 1/2 in
Flange Outside Dia
5 in
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

NIBCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NIBCO 6551-H 112 is a UV-Resistant Schedule 80 Pipe Flange made from polyvinylidene (ASTM D3222 Type I material). This Class 150 flange fits 1 1/2 in pipe with a 5 in outside diameter in a red finish.

Frequently Asked Questions

What is a NIBCO 6551-H 112 pipe flange used for?

The NIBCO 6551-H 112 is a UV-resistant Schedule 80 pipe flange used to connect piping in corrosive or outdoor environments. Made from polyvinylidene (ASTM D3222 Type I), it suits chemical processing, water treatment, and industrial plumbing where durability and UV stability are required.

What are the specifications of the NIBCO 6551-H 112 flange?

This NIBCO flange is Class 150, Schedule 80, with a 1 1/2 in fitting pipe size and a 5 in flange outside diameter. It is made from polyvinylidene (ASTM D3222 Type I material) in a red finish. The manufacturer part number is 6551-H 112.

Where to buy a NIBCO 6551-H 112 flange worldwide?

3G Electric supplies the NIBCO 6551-H 112 flange to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source and deliver this UV-resistant Schedule 80 pipe flange for your project needs.

How to install a NIBCO 6551-H 112 polyvinylidene flange?

Install the NIBCO 6551-H 112 flange by aligning it with the mating flange and using appropriate gaskets and bolts for Class 150 connections. Tighten bolts in a cross-pattern to the manufacturer's torque specs. Ensure pipe ends are clean and properly supported to avoid stress on the flange.

Used in

Common applications for NIBCO
HVAC systems — NIBCO bronze ball valves (T58570UL series) for isolation and control in chilled water loops
Water treatment plants — NIBCO bronze gate valves (T29 series) for shut-off in filtration and distribution lines
Industrial burner systems — NIBCO brass ball valves (GB2A series) for fuel oil or gas supply lines
Chemical processing — NIBCO bronze ball valves with locking lever (T58570LL series) for safety-critical flow control
Steam systems — NIBCO bronze globe valves for throttling in low-pressure steam applications
General plumbing — NIBCO bronze ball valves (S58570 series) with sweat connections for copper piping in commercial buildings

NIBCO Products

3G Electric supplies NIBCO uv-resistant schedule 80 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 NIBCO

View all NIBCO parts →
Blind Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80, 5 in Flange Outside Dia, Red (MPN 6519-H 11/2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Blind Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80, 5 in Flange Outside Dia, Red (MPN 6519-H 11/2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
Pipe Flange: Polyvinylidene, 3/4 in Fitting Pipe Size, Schedule 80, 3 7/8 in Flange Outside Dia, Red (MPN 6551-H 3/4). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Pipe Flange: Polyvinylidene, 3/4 in Fitting Pipe Size, Schedule 80, 3 7/8 in Flange Outside Dia, Red (MPN 6551-H 3/4). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
Pipe Flange: Polyvinylidene, 1/2 in Fitting Pipe Size, Schedule 80, 3 1/2 in Flange Outside Dia, Red (MPN 6551-H 1/2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Pipe Flange: Polyvinylidene, 1/2 in Fitting Pipe Size, Schedule 80, 3 1/2 in Flange Outside Dia, Red (MPN 6551-H 1/2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
Pipe Flange: Polyvinylidene, 2 in Fitting Pipe Size, Schedule 80, 6 in Flange Outside Dia, Red (MPN 6551-H 2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Pipe Flange: Polyvinylidene, 2 in Fitting Pipe Size, Schedule 80, 6 in Flange Outside Dia, Red (MPN 6551-H 2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
Blind Flange: Polyvinylidene, 2 in Fitting Pipe Size, Schedule 80, 6 in Flange Outside Dia, Red (MPN 6519-H 2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Blind Flange: Polyvinylidene, 2 in Fitting Pipe Size, Schedule 80, 6 in Flange Outside Dia, Red (MPN 6519-H 2). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
Blind Flange: Polyvinylidene, 1 in Fitting Pipe Size, Schedule 80, 4 1/4 in Flange Outside Dia, Red (MPN 6519-H 1). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Blind Flange: Polyvinylidene, 1 in Fitting Pipe Size, Schedule 80, 4 1/4 in Flange Outside Dia, Red (MPN 6519-H 1). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
Pipe Flange: Polyvinylidene, 1 in Fitting Pipe Size, Schedule 80, 4 1/4 in Flange Outside Dia, Red (MPN 6551-H 1). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
NIBCO
Pipe Flange: Polyvinylidene, 1 in Fitting Pipe Size, Schedule 80, 4 1/4 in Flange Outside Dia, Red (MPN 6551-H 1). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.