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{"title":"EN 1092-1 Standard Carbon Steel Blind Pipe Flange with Easy Installation for","imgUrl":"https:\/\/img.chinax.com\/nimg\/67\/b1\/aba1f5289e78471ba9c92e59f040-200x200-1\/en_1092_1_standard_carbon_steel_blind_pipe_flange_with_easy_installation_for.jpg","attrs":{"Standard":"en1092-1","Type":"blind flanges","Steel flanges":"forged steel flanges","Material":"carbon steel"}}
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{"title":"DIN 2631 FL\u00c4NSAR EN ASME B16.5 Plan svetsfl\u00e4ns Flanges Typ 01 UNS S32760 (1.4501","imgUrl":"https:\/\/img.chinax.com\/nimg\/1b\/25\/2283b6fb509aad1fb732f823d99c-200x200-1\/din_2631_fl_c3_84nsar_en_asme_b16_5_plan_svetsfl_c3_a4ns_flanges_typ_01_uns_s32760_281_4501_2f_f55_29_steel_blind_pipe_flanges.jpg","attrs":{"Minimum Order Quantity":"1 pcs","Price":"0.3 usd\/pcs","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"10000 pcs in stock"}}
{"title":"Alloy 825 \/ UNS N08825 Blind Pipe Flanges Steel Forged Flanges EN1092-1 Type 01","imgUrl":"https:\/\/img.chinax.com\/nimg\/d9\/b9\/b157f00929c020e225dca48f09ba-200x200-1\/alloy_825_2f_uns_n08825_blind_pipe_flanges_steel_forged_flanges_en1092_1_type_01.jpg","attrs":{"Material":"Alloy 825 \/ UNS N08825","Standard":"EN1092-1 Type 01","Type":"Blind pipe flanges","name":"steel forged flanges"}}
Facing Type Flange EN 1092-1 Facings Types B D F And G Easy Installation for Pipes
Product Overview
Note 1: For facings types B, D, F and G, the transition from the edge of the raised face to the flange shall be radius, or chamfer at the choice of the flange manufacturer.
Note 2: B1 and B2 are raised face (type B) for different applications. For flanges and collars (except types 33, 36 and 37) with facing types A, B1, E and F, turning shall be carried out with a round nosed tool.
Surface Finish Specifications
Facing types
Method of machining
Radius of tool nose
Ra Min.
Ra Max.
Rz Min.
Rz Max.
A, B1 b, E, F
Turning c
1.0
3.2
12.5
12.5
50
B2 b, C, D, G, H
Turning c
-
0.8
3.2
3.2
12.5
For certain applications, e.g. low temperature gases, it may be necessary to stipulate closer control to the surface finish.
Definitions: Ra and Rz are defined in EN ISO 4287. Types B1 and B2: These are raised face (type B) flanges with different specified surface roughness values.
• B1: Standard facing for all PN numbers
• B2: Only if agreed between the purchaser and the flange manufacturer Turning: The term 'turning' includes any method of machine operation producing either serrated concentric or serrated spiral grooves.
Standard Facing Applications
Flanges type 05 up to PN 40 and collars (except types 33, 36 and 37) shall have type A facing, other flanges shall have type B1 facings; unless type B2 facing is agreed between the purchaser and the supplier.
Wall Thickness and End Preparation
Weld-end preparation for flanges types 11 and 34. Unless otherwise specified, for flanges in accordance with this European Standard the welding end connections given in A1 to A3 shall be used. Additional types of welding ends are specified in EN ISO 9692-2 and example of designs in EN 1708-1 and may be used by agreement between the component or pressure equipment manufacturer and the flange manufacturer.
Wall thickness S ≤ 3 mm: Flanges/collars may be delivered with square cut ends
Wall thickness 3 < S < 22: Bevelled ends with an angle of 30° +5° −0 and root face of (1.6 ± 0.8) mm
If flange wall thickness (S) > pipe wall thickness (T): The inner diameter shall be chamfered with an angle of 15°+5° −0 to match (see A3)
