UNKJ 037 counter flange

Steel weld neck flanges are designed for  tank, unit or vessel fitting connection as a counter flange for flange thermowells UNKJ 019, 020, 024, 124, and also for sensors with mounting element - flange with sealing surface according to GOST 12815, GOST R 54432, ASME B16.5 or DIN EN 1092-1.
Flanges are produced according to GOST 12821, ASME B16.5 or DIN EN 1092-1, and also in compliance with customer's requirements specification including design documentation development and approval. Sealing surface versions and corresponding sealing surfaces of thermowells UNKJ 019, 020, 024, 124, are given in the table 5, page 9-7.

Technical characteristics

operating pressure  РР: according to GOST 356-80 – depending on medium temperature and flange material
technical specifications: in compliance with requirements of GOST 12815-80, GOST 12816-80 GOST 54432, GOST 12821-80, ASME B16.5 or EN 1092-1

Execution options

UNKJ 037

¾

02

.

50

.

63

¾

S10

1

 

2

 

3

 

4

 

5

 

NN

Structure

Field code

Designation

1

Manufacturer's code

UNKJ 037

steel weld neck flange

2

Sealing surface
version according to
GOST 12815, ASME B16.5, EN 1092-1

01;  RF; form B

rased face flange

02; LM; SM; form E

raised face flange

03; LF; SF; form F

female flange

04; LT; ST; form C

tongue flange

05; LG; SG; form D

groove flange

07; RTJ; form H

for oval joint

3

Nominal diameter DN

20 to 80

dimension in mm from the range according to GOST 28338

up to 3’’

size (inch) according to ASME

4

Flange durability group

1 to 250

nominal (rated) pressure in kgf/cm2 from the rage according to GOST 26349

150# to 2500#

class according to ASME

5

Flange material

S10

steel 12Cr18Ni10T,

S13

steel 10Cr17Ni13М2Т

St20

steel 20

Scm

steel 15Cr5М

Examples of product designation

UNKJ 03702.50.6,3S10 flange UNKJ 037, version 2 (GOST 12815), DN-50 mm, PN-63kgf/cm2. Flange material S10 steel 12Cr18Ni10Т. UNKJ 037RF.2.300#  Scm flange UNKJ 037, version RF (ASME B16.5), DN=2’’, class 300. Flange material Scm steel 15Cr5М