A spectacle blind flange is a type of isolation device used in piping systems. It is a forged steel plate that consists of two interconnected discs: a ring with a hole of the same bore size as the pipeline, and a solid disc. In normal conditions, the spectacle blind is installed in the open position and does not interrupt the flow of the fluid conveyed by the pipeline. To stop the flow, the blind end is rotated into place between the flanges.
Spectacle blinds are available in standard sizes up to 24 inches and in forged material grades like ASTM A105 (high-temperature carbon), A350 low-temperature carbon), and various ASTM A182 grades (alloy, stainless steel, duplex). They are typically used in conjunction with flanges, and are available with raised face (RF), flat face (FF), or RTJ faces.
Technical Specifications of Spectacle Blind Flange
Material: Carbon steel, low-temperature carbon steel, stainless steel
Standard: ASME B16.48
Size: Up to 24 inches
Face: RF, FF, RTJ
Handle: Yes
ProductASME 165 spectacle flanges BrandRenaissance Pipe Fitting Inc SizesRefer the specification ConditionNew Rating44 based on 37 reviews priceStart from 20 USD RFP India is a renowned exporter manufacturer and supplier of spectacle flanges in the steel market industry worldwide Spectacle Blind Flanges is a strain preserving plate with one open end and one solid end connected with a web or a tiebar In paradigm procedure the open end shapes closes between the two flanges and permits the regular flowage all the way through the pipe work On the other hand if the solid end is shift towards forth and back into its place Spectacle Flanges capably cleans of the pipe and halts the flowing In the meantime these flanges are at length used in particular states with their main advantage that they can be connected to the pipe by means of no welding RANGE 15 NB to 60 1500NB in 150 LBS 300 LBS 600 LBS 900 LBS 1500 LBS 2500 LBS ASA 150 ASA 300 PN 6101625 4064100160 ETC available with NACE MR 0175 SIZE 15NB to 60 1500NB CLASS PRESSURE Class Pressure 150 300 600 900 1500 2500 PN6 PN10 PN16 PN25 PN40 PN64 DIMENSION B165 BS4504 EN1092 B1636 B1647 B1648 MSS SP44 STD STD ANSI Flanges ASME Flanges DIN Flanges EN Flanges BS Flanges API JIS NACE etc FEATURES Dimensional accuracy Corrosion resistance High efficiency Excellent finish Durable Stainless Steel Spectacle Flanges Standard ASTM ASME ASA 182 Grade F 304 304L 304H 309S 309H 310S 310H 316 316TI 316H 316L 316LN 317 317L 321 321H 347 347H 904L Duplex Steel Spectacle Flanges Standard ASTM ASME ASA 182 Grade F 44 F 45 F51 F 53 F 55 F 60 F 61 Aluminium Spectacle Flanges Standard ASTM B247 B361 Grade 2024 6061 6063 6101 7075 Titanium Spectacle Flanges Standard ASTM B381 Grade Grade 1 Grade 2 Grade 4 Grade 5 Grade 6 Grade 7 Grade 9 Grade 19 Grade 23 Carbon Steel Spectacle Flanges Standard ASTM A 105A694 A350 LF3A350 LF2 Grade F42465256606570 Low Temperature Carbon Steel Spectacle Flanges Standard ASTM A 350 LF2 A350 LF3 Alloy Steel Spectacle Flanges Standard ASTM A182 Grade F1F5F9F11F22F91 Copper Alloy Spectacle Flanges Standard ASTM ASME SB 61 62 151 152 Grade UNS NO C 70600 CU NI 9010 C 71500 CU NI 7030 C 71640 Nickel Alloy Spectacle Flanges Standard ASTM ASME SB 564 160 472 Nickel 200 UNS N02200   Nickel 201 UNS N02201   Monel 400 UNS N04400 Monel K500 UNS N05500   Inconel K600 UNS N06600   Inconel 601 UNS N06601 Inconel 625 UNS N06625   Inconel 800 UNS N08800   Inconel 800H UNS N08810 Inconel 825 UNS N08825   Hastelloy C276 UNS N10276   Alloy 20 UNS N08020 Test Certificate Manufacturer Test Certificate as per EN 10204 31 nbsp Types Of Spectacle Flanges SS 310 310S Spectacle Flanges Duplex Steel UNS S31803 Spectacle Flanges Stainless Steel 304 304L Spectacle Flanges Duplex Steel Spectacle Flanges Stainless Steel 316 316L Spectacle Flanges Duplex Steel UNS S32205 Spectacle Flanges Stailess Steel 321 321H Spectacle Flanges Super Duplex UNS S32750 Spectacle Flanges Monel 400 Spectacle Flanges Hastelloy C276 Spectacle Flanges SS Spectacle Flanges Steel Spectacle Flanges Inconel 625 Spectacle Flanges Alloy 20 Spectacle Flanges CuNi 7030 C71500 Spectacle Flanges CuNi 9010 C70600 Spectacle Flanges ASTM A105 Spectacle Flanges ASTM A350 LF2 LF3 Spectacle Flanges Inconel 600 Spectacle Flanges Hastelloy B2 Spectacle Flanges SS 317 317L Spectacle Flanges Super Duplex Spectacle Flanges SS 347 Spectacle Flanges Super Duplex UNS S32950 Spectacle Flanges Monel K500 Spectacle Flanges Hastelloy C22 Spectacle Flanges Stainless Steel 446 Spectacle Flanges ANSI Spectacle Flanges Inconel 718 Spectacle Flanges 904L Spectacle Flanges Incoloy 800 Spectacle Flanges Titanium Gr 2 Spectacle Flanges Incoloy 825 Spectacle Flanges Titanium Gr 5 Spectacle Flanges
We supply various types of UPVC pipe fittings including welded fittings there are two kinds of welded and nonwelded socket welded and threaded fittings flange fittings Ball valve straight pipe straight elbow forward Tee pipe clamp abnormal straight reducing elbow cross loose jointpipe cap copper inner wire straight copper inner wire Tee outer wire direct head loose joint direct head loose elbow double loose ball valve 45 elbow reducing ring external thread plug flange copper inner wire elbow quick joint Y filter glue 1 Fittings used for connecting pipes are flange loose joint pipe hoop clamp sleeve throat hoop etc 2 Fittings change the direction of the pipe elbow bend pipe 3 Fittings change the diameter of the pipe reducing diameter reducing pipe reducing elbow branch pipe reinforcing pipe 4 Fittings increase the pipe branch tee crossing 5 Fittings for pipe sealing gasket raw material belt thread flange blind plate pipe plug blind plate head welding plug 6 Fittings for pipe fixing clamp ring tow hook hanging ring bracket bracket pipe clamp etc
Pipe fittings are the general names of parts and components that play the role of connection, control, direction change, diversion, sealing and support in the pipeline system. Steel fittings are pressure fittings. According to the different processing technology, it is divided into four categories, namely, butt welding pipe fittings (divided into weld and no weld), socket welding and threaded pipe fittings, flange pipe fittings. According to the application: 1. pipe fittings for connecting pipes are: flanges, live joints, pipe hoops, clamps, clamps, throat hoops, etc. 2. changing the direction of the pipe: bends, bends. 3. pipe fittings changing pipe diameter: variable diameter (different diameter pipe), different diameter elbow, branch pipe table, reinforcing pipe. 4. pipe fittings with additional piping branches: three links, four links. 5. pipe fittings for pipe sealing: gasket, raw material belt, thread, flange blind plate, pipe plug, blind plate, head, welding plug. 6. pipe fittings for pipe fixing: clasp, hook, ring, bracket, bracket, pipe clamp, etc. According to the connection :1, welded pipe fittings 2, threaded pipe fittings 3, clamping pipe fittings 4, clamping pipe fittings 5, socket pipe fittings 6, rubber ring connection pipe fittings According to the material divided into 1, cast steel pipe fittings 2, forged steel pipe fittings 3, alloy pipe fittings 4, stainless steel pipe fittings. Pipe fittings are widely used in municipal, petrochemical, west-to-east gas transmission, ships and nuclear power.
For Type of Flanges, we, JS Fittings can Provide: Plate flange, SO flange, WN flange, SW Flange, Threaded Flange, LJF Flange, Orifice Flange, Spectacle Flange, Paddle Blind Flange, etc
We provide an extensive range of high quality Blind Flanges. These products don’t have any bore, and they are commonly used to block/close the end of the piping system. Manufactured with the latest advanced technologies and high quality raw materials, these products are highly durable and resistant to corrosion. We offer product customization and they are available at competitive prices.The reduction can be either threaded or welded based upon the requirements of the client.
Size : 1/2" to 24" ASME B16.5 26"to 80" ASME B16.47 Type : WNF, SO, SWF, BL, OF,LF,PL Face : RF, FF, MF, MFM, RJ, TG, RTJ, SRF, Pressure : Class 150Lbs, 300Lbs, 600Lbs, 900Lbs, 1500Lbs, 2500Lbs, /PN6,PN10,PN16,PN20,PN25,PN40/ Class A, B, C, D, E Standard : ASME B16.5, ASME B16.47, ASME B16.36,DIN 86341-2000, DIN2505 Material : Carbon steel(ASTM A105, Q235,A350LF2,A350LF3,) Stainless steel(ASTM A182 F304, F304L,F316,F316L,F321,F347,F310F44F51,A276 S31803, A182, F43, A276 S32750,A705 631,632,A961, A484, Alloy steel(ASTM A694 F42,F46,F52,F56,F60,F65,F70, A182 F12,F11,F22,F5,F9,F91,F1ECT) Qualification : ISO9001, API,CE Packing : in wooden cases or pallets,or as for clients'requirements Application : Petroleum, chemical, machinery, electric power, shipbuilding, papermaking, construction, etc Special design available as the requirement of customer. in wooden cases or pallets,or as for clients'requirements.
SIZE : DIAMETER: 15mm NB to 1200mm NB as per ANSI B 16.5 Pressure rating form 150 Lbs to 2500 Lbs Size Larger Than 600NB AS PER API 605 or M.S.SP 44 up to 1200mm NB GRADE: AVAILABLE. Carbon Steel: ASTM A105/ A105N/ A694 F42/46/52/56/60/65/70 / A350 LF3/ A350 LF2, etc. Alloy Steel: ASTM A182 F1/ F5/ F9/ F11/ F22/ F91/ etc. Stainless Steel: ASTM A182 F304/ 304L/ 304H/ 316/ 316L/ 317/ 317L/ 321/ 310/ 347/904L/ etc. Duplex steel : UNS S3180,UNS S32205(2205), UNS S32750(32750) , UNS S32760(ZERON 100) Nickel: UNS N02200, UNS N0220 Inconel : UNS N06600, UNS N06625 , UNS N08800 , UNS N08810, UNS N08811, UNS N08825 Monel: UNS N04400, UNSN05500 Hastelloy : UNS N10276, UNS N06022, UNS N10665 Alloy 20: UNS N08020 Copper Nickel: UNS C70600(90:10), UNS C71500(70:30) Titanium : GR.1 R56250(CP4), GR.2 R50400(CP3), GR.3 50550(CP2), GR.4 50700(CP1), GR R56400(6AI-4V) , GR.7 52400, GR.1 R52250, GR.23 R56401
Description: A� Blind Flange� is a solid disk used to block off a pipeline or to create a stop. Like a regular flange, it also has mounting holes around the perimeter and the gasket sealing rings machined into the mating surface. The difference is that a� blind flange� has no opening to allow fluid to pass through.� Specifications: Size: 1-13/16 in ~ 26-3/4 in Working Pressure: 2000PSI, 3000PSI, 5000PSI, 10000PSI, 15000PSI, 20000 PSI Material: AISI 4130(forged)/ SUS316/Inconel 625 / 410 Stainless Steel Face: RTJ, FF, RF
Description: A Blind Flange is a solid disk used to block off a pipeline or to create a stop. Like a regular flange, it also has mounting holes around the perimeter and the gasket sealing rings machined into the mating surface. The difference is that a blind flange has no opening to allow fluid to pass through. 1522095217@qq.com
