AWWA C207 Class D Flange

TYPE: STEEL RING, BLIND Material: A105, A350 LF2, A36, SS 400, A182 F11/F304/F316/F51/F53/F55 etc. Size: 4" ~ 144" Standard: AWWA C207 Pressure: 175 ~ 150 PSI Flange Facing: RF, FF Customization: OEM/ODM service. Samples: Sample service available.

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Product Description

AWWA C207 Class D Flange Manufacturer & Global Supplier

Trusted by municipal water authorities and infrastructure contractors worldwide, Xi’an QinSteel specializes in high-volume production of AWWA C207 Class D Flanges designed for waterworks, sewage systems, and large-scale pipeline projects. With GMP-certified manufacturing and just-in-time inventory, we deliver compliant, durable solutions tailored to your project needs.

What Are AWWA C207 Class D Flanges?

The products are engineered for secure, leak-proof connections in high-pressure water transmission and wastewater systems. These steel ring and blind flanges meet strict AWWA C207 standards, ensuring durability in corrosive environments and compatibility with steel pipelines from 4" to 144". Ideal for municipal projects, they’re built to withstand pressures up to 275 PSI while offering RF/FF facing options.

Material Specifications

STANDARD	TYPE	SIZE	PRESSURE
ASME B16.5	WN, SO, SW, BLD, THREADED, LP	1/2" ~ 24"	CLASS 150 ~ 2500
ASME B16.36	WN, SO, THREADED	1/2" ~ 24"	CLASS 300LB ~ 2500
ASME B16.47	WN BLD	26" ~ 60"	CLASS 75 ~ 900
ASME B16.48	SPECTACLE BLANKS, SPADES, RING SPACERS	1/2" ~ 24"	CLASS 150 ~ 2500
AWWA C207	STEEL RING, BLD, STEEL HUB	4" ~ 96"	86 ~ 275 PSI
API 6A	WN, BLD, THREADED, INTEGRAL, TEST	2-1/16" ~ 20-3/4"	13.8 MPa ~ 138.0 MPa
API 605	WN	26" ~ 60"	CLASS 150 ~ 900
SANS 1123	WN, PLATE, SCREWED, SO, LOOSE, BLANK, INTEGRAL	DN 10 ~ 3600	250 ~ 4000 kPa
AS 2129	BLD, PLATE, BOSS, WN	DN 15 ~ 1800	TABLE A ~ TABLE T
BS 3293	SO, WN	26" ~ 48"	CLASS 150 ~ 600
BS 4504	PLATE, LOOSE, BLANK, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 4000	PN 6 ~ 40
EN 1092-1	PLATE, LOOSE, BLIND, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 3600	PN 6 ~ 400
JIS B2220	SOP, SOH, SW, WN, LJ, TR, IT, BL	DN 10 ~ 1500	5 ~ 63 K
MSS SP-44	BLD, WN	12" ~ 60"	CLASS 150,19.6bar ~ CLASS 900, 153.1 bar

Why Our Flanges Stand Out？

Built for Demanding Water Systems

AWWA C207 Class D Certified: Guaranteed compliance with pressure, dimension, and material standards.
Corrosion-Resistant Options: Choose hot-dip galvanized or epoxy-coated finishes for wastewater/saline environments.
Broad Size Range: From 4" for localized networks to 144" for main supply lines.
Dual Facing Flexibility: RF (Raised Face) or FF (Flat Face) configurations to match existing pipeline setups.

Speed Meets Precision

Fast Turnaround: 15–30 days for bulk orders, backed by 10,000+ tons of raw material stock.
OEM/ODM Support: Customize bolt patterns, thickness, or coatings—submit your drawings for a quote within 72 hours.

Applications

Municipal water distribution networks
Pump stations in irrigation systems
Valve assemblies for wastewater treatment plants
Infrastructure upgrades and retrofits

Why Partner With Xi'an QinSteel?

Expertise You Can Trust

20+ Years in Flange Manufacturing: 500+ global projects completed, from North American utilities to Middle Eastern desalination plants with AWWA C207 Class D Flange.
End-to-End Compliance: Pre-certified with AWWA, ANSI, ISO 9001, CE, and WRAS—no delays during tender submissions.
Rigorous Quality Checks: Every flange undergoes dimensional inspection, hydrostatic testing, and surface quality audits.