Duplex Steel S31803 Blind Flanges

Zhejiang Chengyuan is a reputable manufacturer specializing in the production of high-quality Duplex Steel S31803 Blind Flanges. We offer our products at competitive prices, so you can purchase directly from us and receive top-notch products without breaking the bank. Don't hesitate to contact us for more information.

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Product Description

Zhejiang Chengyuan Duplex Steel S31803 Blind Flanges Introduction

When using flanged blind plates in oil medium systems, they should not be galvanized. However, when used in other media systems, they should be hot-galvanized with a small zinc dipping layer of 610g/m2, and the quality inspection of hot-dipping zinc shall be according to CB*/Z343.

Pressure testing of flange blind plates has become a crucial step in the rapid development of long-distance pipeline construction. Typically, each section of pipeline requires 4-5 ball scans before and after pressure testing. After pressure testing, cleaning the water in the pipeline is difficult and requires numerous cleaning attempts. The construction method of repeatedly welding the head at the ball receiving place results in increased labor intensity for workers, high consumable materials, large equipment, and high costs.

To address the aforementioned issues, a new construction method using a simple and quick opening flange blind plate has been proposed. This construction method involves introducing the structure, working steps, and strength checks of the quick opening blind plate.

Zhejiang Chengyuan Duplex Steel S31803 Blind Flanges Parameter (Specification)

Size	1/2"-110"
Pressure	150#-2500#,PN0.6-PN400,5K-40K,API 2000-15000
Standard	ANSI B16.5,EN1092-1, SABA1123, JIS B2220, DIN, GOST,UNI,AS2129, API 6A, etc.
Wall thickness	SCH5S, SCH10S, SCH10, SCH40S,STD, XS, XXS, SCH20,SCH30,SCH40, SCH60, SCH80, SCH160, XXS and etc.
Material	Stainless steel: A182F304/304L, A182 F316/316L, A182F321, A182F310S, A182F347H, A182F316Ti, 317/317L, 904L, 1.4301, 1.4307, 1.4401, 1.4571,1.4541, 254Mo and etc. Carbon steel: A105, A350LF2, S235Jr, S275Jr, St37, St45.8, A42CP, A48CP, E24 , A515 Gr60, A515 Gr 70 etc.
Finish	Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500, UNS32750 , UNS32760, 1.4462,1.4410,1.4501 and etc. Pipeline steel: A694 F42, A694F52, A694 F60, A694 F65, A694 F70, A694 F80 etc.

Zhejiang Chengyuan Duplex Steel S31803 Blind Flanges Feature And Application

Duplex Steel S31803 Blind Flanges: high-quality and affordable products offered by Zhejiang Chengyuan. Suitable for a variety of applications including oil, gas, and water pipelines.