Peter Skop Industries

Compressed Gas Division

RegOฎ  BK & BKA Series Extended Bonnet Cryogenic Globe Valves

The BK and BKA Series valves are designed exclusively for the handling of cryogenic liquids on bulk storage tanks, transports, and pipelines. These globe valves provide positive shutoff and offer a long, low-maintenance service life. The valves are available with a variety of inlet and outlet connections and stem lengths. Certain BK valves are offered with brazed-in Sch 5 Stainless Steel Pipe Stubs.

Features

ท CTFE seat disc and swivel seat design offer positive shutoff, minimal seat wear, and a long service life.

ท Unique spring-loaded upper packing provides extended service life without constant packing adjustment.

ท One piece slip-on seat assembly for easy replacement.

ท Each valve is pressure tested to be leak free.

ท Each valve is cleaned and packaged for oxygen service per CGA G-4.1.

ท Maximum working pressure is 600 psig CWP.

ท Working temperature range is -320 F to +165 F.

 

Materials

Body.....................................................................................Bronze

Body and Bonnet...................................................................Brass

Seat Disc...............................................................................CTFE

Seat Retainer Assembly ......................................................Brass

Stem and Bonnet Extension Tube..........................Stainless Steel

Packing Spring, Washer ........................................Stainless Steel

Jam Ring and Pressure Seal Rings .....................................PTFE

Upper Bonnet, Packing Gland..............................................Brass

Handwheel .................................Aluminum for up to 1” valve size,

                                               Coated Malleable Iron for larger sizes

Bonnet Design

Union Bonnet for 1/2”, 3/4”, 1” valve sizes and on both the 1” model BKA8408S and 1 1/2” model BKA8412S angle valves.

Bolted Bonnet design is used on the BK9410, BK9412, and BK9416 models.

Part No.

Body Style

Inlet/Outlet Connections

A

Height Open

B

(Approx.)

Length

C

D

Cv

Factor

BK8404S

Straight

.631”.634”

9 5/32”

3 11/16”

1”

4.7

BK8404T

Straight

ฝ” F.NPT

9 5/32”

3 11/16”

1”

4.7

BK8408ST

Straight

.631”-.634” x ฝ” F.NPT

9 5/32”

3 11/16”

1”

4.7

BK9404S

Straight

.631”.634”

14 ฝ”

3 11/16”

1”

4.7

BK9404T

Straight

ฝ” F.NPT

14 ฝ”

3 11/16”

1”

4.7

BK9404AA

Straight

ฝ” Sch5 Pipe

14 ฝ”

9 11/16”

1”

4.7

BK9404PT-F30

Straight

ฝ” Sch5 Pipe x ฝ” F.NPT

14 ฝ”

6 11/16”

1”

4.7

BK9404ST

Straight

.631”-.634” x ฝ” F.NPT

14 ฝ”

3 11/16”

1”

4.7

BK8406S

Straight

.881”-.884”

9 5/32”

3 11/16”

1”

6.7

BK8406T

Straight

พ” F.NPT

9 5/32”

3 11/16”

1”

6.7

BK9406S

Straight

.881”-.884”

14 ฝ”

3 11/16”

1”

6.7

BK9406T

Straight

พ” F.NPT

14 ฝ”

3 11/16”

1”

6.7

BK8408S

Straight

1.131”-1.134”

9 1/8”

4 5/16”

1 1/8”

11.2

BK8408T

Straight

1” F.NPT

9 1/8”

4 5/16”

1 1/8”

11.2

BK9408S

Straight

1.131”-1.134”

14 ฝ”

4 5/16”

1 1/8”

11.2

BK9408T

Straight

1” F.NPT

14 ฝ”

4 5/16”

1 1/8”

11.2

BK9408AA

Straight

1.131”-1.134”

14 ฝ”

10 5/16”

1 1/8”

11.2

BK9408PT-F30

Straight

1” Sch5 Pipe x 1” F.NPT

14 ฝ”

7 5/16”

1 1/8”

11.2

BK9410S*

Straight

1.378”-1.380”

16 7/16”

5 3/16”

1 ฝ”

17.5

BK9412S*

Straight

1.631”-1.634”

16 9/16”

5 3/16”

1 ฝ”

25.1

BK9412T*

Straight

1 ฝ” F.NPT

16 9/16”

5 3/16”

1 ฝ”

25.1

BK9412AA

Straight

1 ฝ” Sch5 Pipe

16 9/16”

11 3/16”

1 ฝ”

25.1

BK9412PT-F30

Straight

1 ฝ” Sch5 Pipe x 1 ฝ” F.NPT

16 9/16”

8 3/16”

1 ฝ”

25.1

BK9416S*

Straight

2.131”-2.134”

16”

6”

1 5/8”

41.0

BK9416T*

Straight

2” F.NPT

16”

6”

1 5/8”

41.0

BK9416PT-F30

Straight

2” Sch5 Pipe x 2” F.NPT

16”

9”

1 5/8”

41.0

BKA8408S

Angle

1.131”-1.134” x 1.631”-1.634”

11 ผ”

3 ผ”

1 พ”

14.5

BKA9408S

Angle

1.131”-1.134” x 1.631”-1.634”

14 5/8”

3 ผ”

1 พ”

14.5

BKA8412S

Angle

1.631”-1.634”

13”

4 ผ”

1 พ”

14.5