ANSI Ball Check Valves (Class 150)

Ball Check Valves for horizontal or vertical installation reliably prevent the reverse flow of working medium. At the same time, they offer the least possible resistance in the direction of flow.

Materials:

  • carbon steel
  • stainless steel

Lining material:

  • PTFE (virgin or conductive)

Other pressure rating:

  • Class 300

Special features:

  • earthing stud/lug
  • vent hole extension

Optional extras:

  • final painting
  • non-destructive testing

NPS

 

L (mm)

d4

(mm)

K

(mm)

No. of bolts

x

thread (UNC)

Weights

(ca. kg/piece)

Form A

Form B

Form A

Form B

1“

178

178

50.8

79.4

4 x ½“

4.7

17.3

1¼“

190

190

63.5

88.9

4 x ½“

6.8

25.1

1½“

204

204

73.0

98.4

4 x ½“

8.7

32.0

2“

228

228

92.1

120.7

4 x ⅝“

10.3

37.9

2½“

254

254

104.8

139.7

4 x ⅝“

17.3

63.9

3“

280

280

127.0

152.4

4 x ⅝“

19.5

72.1

4“

330

330

157.2

190.5

8 x ⅝“

23.4

86.7

5“

380

380

185.7

215.9

8 x ¾“

34.0

125.6

6“

406

406

215.9

241.3

8 x ¾“

45.7

168.8

8“

458

458

269.9

298.5

8 x ¾“

70.5

260.8

Different nominal pipe sizes

and total lengths on request.

L = Total length

d4 = Raised face diameter

K = Bolt circle diameter

Technical data valid for the pressure rating Class 150.

NPS Lining thickness Possible vacuum
standardthick-walled23°C150°C200°C
1“ 
 
1½“ 
 
2“ 
 
3“ 
 
4“ 
 
6“ 
 
8“ 
 
Vacuum resistance:
= full vacuum
= limited vacuu
= no vacuum
Please refer to the next higher nominal pipe size if your nominal pipe size is not listed.