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Loose Flange

Standard Specification For loose flange

  • Dimensions :ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • Size :1/2″ (15 NB) to 48″ (1200NB)
  • Class :150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
  • DIN :DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636,DIN 2637, DIN 2638, DIN 2673
  • BS : BS 4504 , BS 4504, BS 1560, BS 10
  • PN :PN6, PN10, PN16, PN25, PN40
  • Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
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Packaging of Loose / Lap Joint Flanges

Packaging: Loose / Lap Joint Flanges is sleeved into plastic bag individually, ten pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

Prevent any damage.
During transportation items are tagged, packed in plastic bags and closed in carton boxes or seaworthy wooden cases.

plywood case,pallet and according to customer’s requirment

Marking:Loose / Lap Joint Flanges are marked with alloy name, outside diameter, wall thickness and heat number. Additional information like standard and alloy numbers can be added on request.

loose flange
loose flange

loose flanges also known as Lap joint flanges are used with a corresponding stub-end that “inserts” in the inside of the flange. The main benefit of this type of flange,is that once the pipe welds to the insert stub-end,the flange then can rotate for easier alignment of the bolting holes.

Material & Grades of Loose Flanges :
  • Stainless Steel Loose Flanges : ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L Loose Flanges
  • Duplex & Super Duplex Steel Loose Flanges : ASTM A182 / ASME SA182 F44, F 45, F51, F 53, F 55, F 60, F 61 Loose Flanges
  • Carbon Steel Loose Flanges : ASTM A105 / ASME SA105 ASTM / ASME A 350 , ASTM A181 LF2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 Loose Flanges
  • Low Temperature Carbon Steel Loose Flange: ASTM A350, LF2, LF3 Loose Flanges
  • Alloy Steel Loose Flanges : ASTM A182 / ASME SA182 & A387 F1, F5, F9, F11, F12, F22, F91 Loose Flanges
  • Copper Alloy Steel Loose Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
  • Nickel Alloy Loose Flanges : ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020) Loose Flanges

Application of Loose Flange

  • ANSI B16.5 Class 150 Loose Flanges uses in Industrial Boilers Industry
  • ASTM A182 Stainless Steel Loose Flanges uses in Power Plants Industry
  • ASME B16.47 Series A and B Loose Flanges uses in Nuclear Plants Industry
  • Stainless Steel Loose Flanges uses in Oil & Gas Industry
  • Super Duplex Steel Loose Flanges uses in Refineries Industry
  • Industrial Loose Flanges uses in Ship Building Industry
  • Super Duplex Steel Loose Flange Forged Flanges uses in Heat Exchanger Industry
  • Carbon Steel Industrial Loose Flanges uses in Condensers Industry
  • Alloy Steel Industrial Loose Flanges uses in Paper & Pulp Industry
  • Duplex Steel Industrial Loose Flanges uses in Marine Applications
  • Stainless Steel Industrial Loose Flanges uses in Nuclear Power Industry
  • Industrial Loose Flange / Fittings System uses in Fossil Fuel Power Plants Industry

loose flange dimensions of ASME B16.11

NPS 1/2 – ID = 22.9 – r = 3
Class15030040060090015002500
Diameter – A30383838383843
Diameter – D90959595120120135
Thickness – B11.214.314.314.322.322.330.2
Diameter – G35.135.135.135.135.135.135.1
Diameter – K60.366.766.766.782.682.688.9
Height – H16222222323240
Bolt Holes4444444
Diameter – L15.915.915.915.922.222.222.2
Stud Bolts Diameter x Length
Diameter (in)1/21/21/21/23/43/43/4
Length (mm)55657575110110120

 

NPS3/412346810121416182024

 

Dimensional Tolerances of Lap Joint Flanges ASME B16.5

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Inside Diameter
not applicable
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Outside Diameter of Hub
≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
not applicable
Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Thickness
≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0
Length thru Hub
≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm

INDUSTRIES WE CATERS INDUSTRIAL FORGE FITTING

  • Ronak Overseas has many years of experiance of export and supply of ASME B16.11 Forged Fittings that is extensively used in the following industries:
  •  Refineries
  •  Gas Processing
  •  Off-Shore Oil Drilling Companies
  •  Petrochemicals
  •  Hydro-Carbon
  •  Fertilizers
  •  Paper & Pulp Companies
  •  Power Generation
  •  Specialty Chemicals
  •  Pharmaceuticals
  •  Drugs
  •  Steel
  •  Cement
  •  Water Pipe Line
  •  Pesticides
  •  General Piping
  •  Construction
  •  Engineering
  •  Nuclear
  •  Food Processing & Dairy
  •  boiler & heatexchangers