Modification

Pressure
nominal РN, MPa (kgf/cm2)

Connection thread M

D, mm

d, mm

max Ø                   sensor, mm

Thermowell  insertion length L, mm

Thermowell immersion length U, mm

from

to

UNKJ 014*

20 (200)

• Metric, according to GOST 24705, M12 to M33
• Straight pipe, according to GOST 6357, G3/8 to G1
• Tapered according to GOST 6111, К1/4 to К1”

14

—

10

120

1250

U=L
for thread
М12 – М33
and
G3/8 - G1

U=L-13…19

for thread
К1/4 to К1

32 (320)

16

10

40 (400)

14

8

50 (500)

8

3.5

80

500

10

4.5

12

6

120

800

16

8

1250

18

10

UNKJ 114

32 (320)

М20х1,5; М27х2; М33х2; G1/2; G3/4; G1; К1/2”; К3/4”; К1”

20

12.5

8

120

1250

40 (400)

22

17.5

10

UNKJ 016

50 (500)

М27х2; G3/4

23

—

8

80

1250

K3/4”

22

М33х2; G1

29

K1”

28

UNKJ 026

32 (320)

М27х2; G3/4

23

—

10

80

1250

K3/4”

22

50 (500)

М27х2; G3/4

23

8

K3/4”

22

М33х2; G1

29

10

K1”

28

UNKJ

014

-

27

.

B

.

200

-

G1/2

.

G

-

S13

.

S

-

20

-

630

/

100

1

2

3

4

5

6

7

8

9

10

11

12

Field no.

Structure

Field code

Designation

1

Manufacturer's code

UNKJ

2

Thermowell modification number

014; 114

Solid cylinder thermowell with constant  (014) or variable (114) diameter

016

Solid taper thermowell (variable diameter drilling for a sensor, maximum diameter 8mm)

026

Solid taper thermowell (constant diameter drilling for a sensor, maximum diameter 10mm)

3

Mounting thread M

12; 16; 18

М12х1,5; М16х1,5; М18х1,5 according to GOST 24705

20

М20х1,5according to GOST 24705

27

М27х2according to GOST 24705

33

М33х2according to GOST 24705

G1/2; G3/4; G1

straight pipe thread GOST 6357

K1/2; K3/4; K1

British taper thread GOST 6111

4

Design depending on thermowell seal at site

A

A version (according to GOST 10549)

B

B version (according to GOST 22526)

C

C version for weldolet  installation according to OST 26.260.460-99

5

Nominal pressure

1 to 500

nominal (rated) pressure in kgf/cm2

6

Inner thread N for sensor

М20х1,5 – not specified

G1/2;

straight pipe thread GOST 6357

K1/2;

British taper thread, GOST 6111 only for installation of sensors with fixed fitting.

7

Design depending on sensor seal inside thermowell, table 3

for movable fitting (field is not filled)

G

for fixed fitting

8

Immersion end material*

S10

steel 12Cr18Ni10T

S08

steel 08Cr18Ni10Т;

S13

steel 10Cr17Ni3M2T

Smf

steel 12Х1МФ

S316

AISI 361Ti

М400

Monel 400

I825, I800

Incoloy 825, Incoloy 800

Т904, Т446

AISI 904L, AISI 446

Т310, Т600, Т625

AISI 310S, Inconel 600, Inconel 625

H276, H22

Hastelloy C-276, Hastelloy C-22

9

Thermowell coating - yes/no

without coating (field is not filled)

S

wear-resistant and corrosion-resistant coating

10

Working end outer
diameter

D

size (mm), should be specified only for UNKJ 014, 114.

11

Sensor
length

L

Distance from sealing face, mm It is recommended to be selected from standard range, GOST 6636-69

12

Coating length

l

field is not filled if thermowell without coating is used.