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

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

The NIBCO 6551-H 1/2 is a UV-Resistant Schedule 80 Pipe Flange made from ASTM D3222 Type I polyvinylidene material. This Class 150 flange has a 1/2 in fitting pipe size and a 3 1/2 in outside diameter in red. 3G…

SKU 3G-OTH-708537

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

NIBCO
Manufacturer Part Number
6551-H 1/2
Type
Schedule 80, Red
Fitting Pipe Size
1/2 in
Flange Outside Dia
3 1/2 in
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NIBCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NIBCO 6551-H 1/2 is a UV-Resistant Schedule 80 Pipe Flange made from ASTM D3222 Type I polyvinylidene material. This Class 150 flange has a 1/2 in fitting pipe size and a 3 1/2 in outside diameter in red. 3G Electric interprets your demand for this genuine industrial component, sourcing it across our 14 departments and backing it with specialist expertise in combustion, pumps and controls.

Frequently Asked Questions

What is a NIBCO 6551-H 1/2 pipe flange used for?

This NIBCO 6551-H 1/2 Schedule 80 pipe flange connects polyvinylidene piping in corrosive fluid systems. Its UV-resistant red material suits chemical processing, water treatment, and industrial plumbing where durability and chemical resistance are required.

What are the specifications of the NIBCO 6551-H 1/2 flange?

The NIBCO 6551-H 1/2 is a Class 150 Schedule 80 pipe flange with a 1/2 in fitting pipe size and 3 1/2 in outside diameter. It is made from ASTM D3222 Type I polyvinylidene material in red, offering UV resistance for demanding environments.

Where to buy a NIBCO 6551-H 1/2 flange worldwide?

3G Electric supplies the NIBCO 6551-H 1/2 flange worldwide, handling full logistics and customs clearance. We source this genuine component across 14 industrial departments, backed by specialist expertise in combustion, pumps and controls.

How to install a NIBCO Schedule 80 pipe flange?

Align the NIBCO flange with the mating pipe, insert bolts through the holes, and tighten evenly in a cross pattern to the torque specified for Class 150 connections. Use compatible gaskets and avoid overtightening to prevent stress on the polyvinylidene material.

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.

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Pipe Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80, 5 in Flange Outside Dia, Red (MPN 6551-H 112). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
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Pipe Flange: Polyvinylidene, 1 1/2 in Fitting Pipe Size, Schedule 80, 5 in Flange Outside Dia, Red (MPN 6551-H 112). Key specifications — attr1253352: ASTM D3222 Type I Material; attr1291286: Class 150.
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.
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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.
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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, 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.
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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.
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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.
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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.
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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.