Products
Contact Us
Tel: +86-577-86866707
Fax: +86-577-86866707
Mob: +86-15906484621
E-mail: kaysenflange@hotmail.com
ASME B16.48 Spectacle Blind Flange Spade, Ring Spacer
ASME B16.48 forged spectacle blinds flanges class 2500
Standard: ANSI/ASME B16.48
Flange type: spectacle blinds flanges
Size range: 1/2
Pressure: Class 2500
Material: Stainless steel , Alloy Steel , Carbon Steel
Spectacle blind, flange spade, and ring spacer are forged products used to blind pipelines, Spectacle blinds (also defined “spectacle flanges”) are manufactured from steel plates and are basically two interconnected discs: one is actually a ring (i.e. a disc with a hole of the same bore size of the pipeline), the other is a solid disc.
Spectacle Blinds Flanges Specification
Standard: ASME B16.48
Flange type: spectacle blinds flanges
Size range: 1/2"-12"
Pressure class: Class 2500
Surface treatment: Anti-rust oil, transparent/yellow/black,Anti-rust paint, Zinc,Hot dipped galvanized SPECTACLE BLIND TYPES:
Flat face spectacle blind (FF): similar to a flat face flange, the surface of the disc is flat (suited for flat face gaskets, for low-pressure applications).
Raised face spectacle blind (RF): likewise raised face flanges, there is an additional thickness on the surface of the disc. This type fits semi-metallic gaskets, as the spiral wound type.
Ring joint face spectacle blind (RTJ): a groove is inscribed on the surface of the disc. This type is used in conjunction with ring joint gaskets.
Material:
Stainless Steel Material Spectacle Blinds:
ASTM A182 F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L Duplex stainless steel UNS S32304,S31803,S32205.
Super Duplex stainless steel UNS S32750/S32760/S31260/S32550/S32707
Carbon Steel Material Spectacle Blinds :
ASTM A105, Q235, A350 LF2,ASTM A694 F42/F46/F52/F60/F65/F70/F80
Alloy Steel Material Spectacle Blinds:
ASTM A 182, GR F1,F5, F9, F11, F22, F91
Copper&Nickel Alloy Material Spectacle Blinds:
CU/NI 90/10, CU/NI 70/30
Nickel Alloy Material Spectacle Blinds:
Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276
Surface treatment: Anti-rust oil, transparent/yellow/black,Anti-rust paint, Zinc,Hot dipped galvanized Usage: Oil field, Offshore, Water system, Shipbuilding, Natural gas,Electric power, Pipe projects,etc.