Zhejiang stainless steel flange cover BL

Zhejiang stainless steel flange cover BL is made of stainless steel material, also known as flange blind plate or blind flange. BL blind plate, the middle of the blind plate flange is solid, surrounded by bolt holes, and looks like an iron cover, so it is also called flange cover. Blind flange is used to seal and block the end of the pipeline, which can facilitate the removal of debris in the pipeline during maintenance. In terms of sealing effect, it has the same function as the head and pipe cap, but the head and pipe cap cannot be disassembled after welding, while the Zhejiang stainless steel flange cover BL is fixed with bolts and is easy to disassemble.

Zhejiang stainless steel flange cover BL can be divided into: stainless steel: (304, 304L, 316, 316L, S30408, S30403, S31608, S31603, SUS304, ASTM A403, TP321, TP317L, 347, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2, etc.)

Common sealing surface form codes for Zhejiang stainless steel flange cover BL: convex surface RF, concave surface FM, convex surface M, tenon surface T, groove surface G, full plane FF, ring connection surface RJ

The commonly used execution standards for Zhejiang stainless steel flange cover BL: The current flange standards in China are divided into two systems, namely PN series (European system) and Class series (American system). The pressure markings specified in this standard are divided into PN markings and Class markings. The PN label has 12 pressure levels, namely: PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400。 The Class label has 6 pressure levels, namely: Class 150; Class 300; Class 600; Class 900; Class1500; Class 2500。 The implementation standards include GB series (national standards), JB series (mechanical department), HG series (chemical department), ASME B16.5 (American standard)

National standard: GB/T9123-2010

Chemical standard: HG/T20592-2009

American standard: ASME B16.5