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Valve Body Features
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Valve Bodies Wide Selection:
Available in a wide variety of body materials, linings and end connections. By utilizing such highly resistant linings as Saran, Polypropylene, Kynar, Tefzel, Glass, Rubber, etc., virtually any chemical service within the pressure/temperature limits of the valve can be handled safely and economically.

No Stem Leakages:
Since the diaphragm isolates the fluid stream there is no need for a   packing gland - no atmospheric contamination, no leakage or waste, no expensive maintenance of stem, seats, or stuffing box.

Bubble-Tight Shut Off:
Results when the downward thrust of the stem and compressor assembly molds the flexible diaphragm against the weir. The diaphragm will accommodate itself to rust, scale, slurry, or fibrous material.

Streamline Flow:
With minimum pressure drop because of the absence of grooves, pockets or sharp changes in direction of flow.

Cost Saving:
Simple in-line maintenance. In less time than it takes to remove and replace a conventional valve, a new body diaphragm can be installed. Thus providing essentially a brand new valve at a tiny fraction of the cost of a new or repaired conventional valve - all without removing the valve body from the line.

Flow Control:
The automated diaphragm valve provides an excellent means of handling the change flow requirements in most proces installations. By the addition of a positioner to the actuator, even more precise control can be achieved, especially in the handling of slurries, or viscous and fibrous materials.

                                            Body Materials:
                                            Available in cast iron, ductile iron, carbon steel, stainless steel, Alloy-20, aluminum and bronze - many of which are lines as                                                             described above. For more detailed information on the types of valve bodies and linings available, see below.

The following list shows the wide variety of bodies and linings available.

Body

Material Lining

Code

Screwed Ends

Flanged Ends

Cast Iron

Unlined

01

1/2" - 3"

1/2" - 10"

Cast Iron

Hard Rubber

02

   -

3/4" - 10"

Cast Iron

Soft Rubber

03

   -

3/4" - 10"

Cast Iron

Neoprene

04

   -

3/4" - 10"

Cast Iron

Butyl

05

   -

3/4" - 10"

Cast Iron

Hypalon*

06

   -

3/4" - 10"

Cast Iron

Glass

07

   -

3/4" - 10"

Cast Iron

Saran

10

   -

3/4" - 10"

Cast Iron

Polypro.

11

   -

3/4" - 8"

Cast Iron

Tefzel

13

   -

3/4" - 8"

Cast Iron

Kynar

14

   -

3/4" - 8"

Body

Material Lining

Code

Screwed Ends

Flanged Ends

Ductile Iron

Unlined

17

1/2" - 3"

1/2" - 8"

Ductile Iron

Hard Rubber

18

-

1" - 8"

Ductile Iron

Soft Rubber

19

-

1" - 8"

Ductile Iron

Neoprene

20

-

1" - 8"

Ductile Iron

Glass

21

-

1/2" - 6"

Ductile Iron

Saran

24

-

3/4" - 8"

Ductile Iron

Polypro.

25

-

3/4" - 8"

Ductile Iron

Tefzel

26

-

3/4" - 8"

Ductile Iron

Kynar

27

-

3/4" - 8"

Ductile Iron

PFA

28

-

3/4" - 8"

Body

Material Lining

Code

Screwed Ends

Flanged Ends

Cast Steel

Saran

30

-

1" - 8"

Cast Steel

Polypro.

31

-

1" - 8"

Cast Steel

Kynar

32

-

1" - 8"

Cast Steel

Teflon

33

-

1" - 8"

Body

Material Lining

Code

Screwed Ends

Flanged Ends

Stainless Steel

Unlined

41

#* 1/2" - 3"

1/2" - 8"

Alloy 20

Unlined

42

#* 1/2" - 2"

1/2" - 2"

Body

Material Lining

Code

Screwed Ends

Flanged Ends

Saran (solid)

Unlined

43

1/2" - 2"

-

Polypro. (solid)

Unlined

44

1/2" - 2"

-

Kynar (solid)

Unlined

45

1/2" - 2"

-

PVC (solid)

Unlined

46

1/2" - 2"

1/2" - 2"

CPVC (solid)

Unlined

49

1/2" - 2"

1/2" - 2"

Body

Material Lining

Code

Screwed Ends

Flanged Ends

Bronze

Unlined

47

1/2" - 2-1/2"

1/2" - 4"

Aluminum

Unlined

48

1/2" - 2"

-


* Available with socket weld ends.
# Available with butt weld ends through 6"

Note: Code number for end corrections are: Flanged - 1, Screwed - 2, Socket - 3, Butt Weld - 4.

*  -  Hypalon is a registered trademark of Dupont Dow Elastomers.

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