FLANGES

Weld Neck Flange

Blind Flange

Adapter Flange

Companion Flange

  • Types: Weld Neck, Blind, Adapter & Companion Flange.
  • Inlays: Stainless Steel & Inconel.
  • Services: Standard & H2S (NACEMR 0175).
  • PSL Level: Upto PSL-4.
  • These Products Are Supplied As Per Customer Requirement Of PSL Level, Material Class And Temperature Class.
  • They Come With Full Material Traceability Documents.

Sizes and Pressure Ratings

Size Pressure
(Inches) 2,000 PSI 3,000 PSI 5,000 PSI 10,000 PSI 15,000 PSI 20,000 PSI
1-13/16"
2-1/16"
2-9/16""
3-1/16"
3-1/8"
4-1/16"
5-1/8"
7-1/16"
9"
11"
13-5/8"
16-3/4"
18-3/4"
20-3/4"
21-1/4"
26-3/4"
30"

* API 6A Companion Flanges are rated up to 5,000 PSI

Temperature Ratings

Temperature Classification Operating Range
°C °F
min. max. min. max.
K -60 82 -75 180
L -46 82 -50 180
N -46 60 -50 140
P -29 82 -20 180
S -18 60 0 140
T -18 82 0 180
U -18 121 0 250
V 2 121 35 250
X -18 180 0 350
Y -18 345 0 350

Material Requirements

Material Class Minimum Material Requirements
AA General Service Carbon or low-alloy steel
BB General Service Carbon or low-alloy steel
CC General Service Stainless steelb
DD Sour Servicea Carbon or low-alloy steelb
EE Sour Servicea Carbon or low-alloy steelb
FF Sour Servicea Stainless steelb
HH Sour Servicea CRAsbcd

a. As defined by IS015156 (all parts) (NACE MR0175)

b. In accordance with IS015156 (all parts) (NACE MR0175)

c. CRA required on retained fluid-wetted surfaces only, CRA cladding of low-alloy or stainless steel is permitted

d. CRA as defined in IS015156 (all parts) (NACE MR0175) definition of CRA does not apply
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