| Customization: | Available |
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| Standard: | ANSI, DIN, JIS, GOST, Ks,API |
| Type: | Welding Flange |
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Spectacle Flange figure 8 blind flange |
A spectacle blind - also known as a figure-8 blind - is generally a piece of metal that is cut to fit between two pipe flanges and usually sandwiched between two gaskets. A spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. The shape is similar to a pair of glasses or "spectacles" - hence the name spectacle blind. One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow during maintenance. They are generally installed as a permanent device to separate process piping systems." |
Size |
Spectacle flange:1"-24" DN25-DN600 |
Pressure |
America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500. Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400. |
Flange Facing Types |
America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ) Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove) |
Material |
Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8. Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6 High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70 |
Standards |
ASME ANSI B16.5,ASME ANSI B16.47. API 605,API 6L. MSS SP 44 CSA Z245.12 EN1092-1,EN1759-1. DIN2573,DIN2576. BS1560,BS 4504,BS 10. AFNOR NF E29-200-1 ISO7005-1 AS2129 JIS B2220 UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090 |
Industrial Processes |
Die forging,Machining |
Material |
stainless steel :A 182 F 304/304L/316/316L/321/347, Duplex F51/F53/F44/F55/F60/F61 Alloy steel :STM A694/ A694M F42/F46/F52/F56/F60/F70,A182 F5,F9,F11 Carbon steel:ASTM A 105, ST37.2 A 350 LF1, LF2, LF3,API 6A AISI 4130 |
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| Standard | ASTM/ASME/ANSIB16.5, B16.47, ASME/ANSIB16.48, JIS/KS (5K, 10K, 16K, 20K), DIN2633, DIN2634, DIN2635,EN1092,BS4504,AWWA C206,API 6A ,Customized drawings welcomed | |||||||
| Size | 1/2" - 120 " (DN15-DN3000) | |||||||
| Pressure | Class150-Class2500 JIS 5k-30k DIN 6bar-40bar | |||||||
| Type | slip on flange, Weld Neck Flange Threaded Flange Blind Flange, Orifice Flange socket weld flange, Spacer Ring, Paddle, Spectacle Blind Flange | |||||||
| Surface Treatment | Surface galvanized, antirust coating, Epoxy & FBE Coating,protected with plastic caps | |||||||
| Packing | Pallet/Wooden case(Fumigation free) | |||||||
| Certificate | ISO9001,EN10204 3.1 MTC | |||||||
| Quality control | In house and third party | |||||||
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