PRODUCTS
Credibility ,ASME B16.9 ASTM A815 F51 Welded Lap Joint Stub End 14 Inch Schedule STD
ASME B16.11 ASTM A182 F321 Socket Welding Cap 2 Inch 3000LBS
ASME B16.5 ASTM B564 Alloy C22 WNRTJ Flange 4 Inch SCH80S CL1500
ASME B16.11 ASTM A182 GR.F316L Threaded Hex Head Plug 1 Inch CL3000
ASME B16.5 ASTM B564 UNS N06625 WNST Flange 6 Inch SCH40S CL900
ASME B36.19 ASTM A213 TP347 Seamless Pipe Cold Finished 168.3 x 4.2 x 8000MM
ASME B16.5 ASTM B564 Incoloy 825 WNRTJ Flange 3 Inch SCH40S CL900
ASME B16.9 ASTM B366 Nickel Alloy 200/201 Concentric Reducer 4 Inch - 1-1/2 Inch SCH80
MSS-SP43 (A) ASTM A815 UNS32750 SAF2507 Stub End 3 Inch SCH80S
ASME B16.5 ASTM B564 Hastelloy C276 Blind Flange RF 80NB CL150
ASME B16.5 ASTM B564 Hastelloy C276 Socket Weld Flange 3 Inch CL150
ASME B16.9 ASTM B366 Hastelloy C276 Welded Stub End DN609.6x4MM
ASME B16.9 ASTM B366 Hastelloy C276 45 Degree Welded Elbow LR DN609.6x4MM
ASME B16.9 ASTM B366 Hastelloy C276 90 Degree Welded Elbow LR DN609.6x4MM
Packaging Details: | Seaworthy plywood case or as customer requests |
---|---|
Delivery Detail: | 2 - 10 days after receiving the deposit |
4. Pressure Ratings: 5000PSI
Spectacle blind flange, is made by a steel spade and spacer, united by a welded handle. Spectacle blind may have a different type of joint face (RR Raised Face, FF Flat Face, RTJ Ring Joint), depending the type of flange.
The rtj spectacle blind flange is usually used on the oil line with two different function:
If the spade is put in between the flanges, it stops the fluid’s passage;
If the spacer is put in between the flanges, the passage of the fluid is allowed.
The rtj spectacle blind flange is inserted between two flanges: in order to guarantee a perfect waterlight two gaskets are normally mounted, one on each side of rtj spectacle blind flange.
China Spectacle Blind Manufacturer Yaang supplies API 6A F51 RTJ Spectacle Blind Flange, 3-1/8 Inch, 5000PSI.
Composition ranges for 2205 (F51) grade stainless steels
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
2205 (S31803) |
Min Max |
- 0.030 |
- 2.00 |
- 1.00 |
- 0.030 |
- 0.020 |
21.0 23.0 |
2.5 3.5 |
4.5 6.5 |
0.08 0.20 |
2205 (S32205) |
Min Max |
- 0.030 |
- 2.00 |
- 1.00 |
- 0.030 |
- 0.020 |
22.0 23.0 |
3.0 3.5 |
4.5 6.5 |
0.14 0.20 |
A spectacle blind flange is machined from a single piece of metal that is cut to match the pipe size, fit between two pipe flanges and requires an additional gasket when it is installed. Also, the bolts will need to be lengthened depending on what piping class and size blind is used. The thickness of the spectacle blind is specified based on the line pressure and pipe size.
API and ASME/ANSI flanges - comparing dimensions and pressure ratings
Although the dimensions of ASME and API flanges may sometimes be compatible for bolting - using the same bolt circle and the same number of bolts - they do not share the same pressure rating system.
ASME rates the pressure of a class based on the material of construction and the design temperature
API specifies allowable materials and gives it a specific pressure rating
The difference between ASME/ANSI and API is the fabrication material and a higher rated API operating pressure.
ASME/ANSI flanges are commonly used in industrial process systems handling water, steam, air and gas. API flanges are manufactured for high strength operating refinery systems with products such as oil and explosive gases.
The flange standards API 6A and ASME/ANSI B16.5 have the same dimensions - but the API 6A flanges are rated for higher pressures as indicated below:
API vs. ASME/ANSI Flanges with the same Dimensions | ||||
---|---|---|---|---|
Flange | Pressure Class Rating (psi) (kPa) |
Nominal Size Range (inches) |
||
ASME/ANSI B16.5 | API 6A | ASME/ANSI B16.5 | API 6A1) | |
Weld neck | 600 | 2000 | 1/2 - 24 | 113/16 - 11 |
900 | 3000 | |||
1500 | 5000 | |||
Blind and Threaded | 600 | 2000 | 113/16 - 211/4 | |
900 | 3000 | 113/16 - 203/4 | ||
1500 | 5000 | 113/16 - 11 |
1) In the old API standard, flanges ranged from 1 1/2 to 10(20) inches.
Applications Of API 6A F51 RTJ Spectacle Blind Flange:
1. petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry
6. Oil and gas industry
Other Features:
1) Chemical and Physical characteristic: durable, corrosion resistant and high-temperature resistant
2) We also produce flange with special specifications according to customers’ requirements;
Packing
1) Packing Method:
Normal packing: Plastic film or bubble paper wrapped, endings protect by caps,
then into wooden case or load on fumigation plywood pallet.
Custom product: As per your request.
2) Shipping:
By Sea, By Air, By Train or River-and-Sea Coordinated Transport, according to your request.
Where can we find the high quality API 6A F51 RTJ Spectacle Blind Flange 3-1/8 Inch 5000PSI.
You can visit this website: www.yaang.com (Yaang Pipe Industry Co., Limited).
If any inquiry about products, please feel free to contact us [email protected]
Tel No:+86-18267732328 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.