1. Asahi/America Thermoplastic Diaphragm Valves

2. Asahi/America Design Technology for Valves
8 bolts
10 bolts
12 bolts
The area where Max. distortion is observed
3 pattern analysis
A point on valve seat
Sealing point
minimum distortion
200
Large
CAE Analysis of Body (Type 72 size 5”)
Analytical conditions
• Body U-PVC (1/4 cut model)
• Pressure Psi
These results show when 10 bolts are applied, distortion of the sealing portion is minimized

3. CAE Analysis of body (Type 14-3”)
Asahi/America Design Technology for Valves
CAE Analysis of body (Type 14-3”)
Distortion
Stress
(Max distortion)
( Max distortion)
Analysis Conditions -
Pressure ; 285 Psi
Ambient temp.
Analysis Conditions -
Pressure ; 285 Psi
Ambient temp. .

4. Asahi/America Type G Diaphragm Valves
Position Indicator/Travel Stop
PVDF Compressor
Large Weir Design

5. Asahi/America Type G Flanged Diaphragm Valves
Sizes 8”&10” PVC,PP,PVDF
Face-to-face lengths are industry standard
Flanged body conforms to ANSI 16.5
Excellent throttling characteristics
Double beaded diaphragm sizing arrangement
Bonnet o-ring seal, eliminates corrosive atmosphere internally

6. Asahi/America Type 14 Flanged Diaphragm Valves
1/2”-2”

7. Asahi/America Thermoplastic Diaphragm Valves
Visual Indicator
Travel Stop
Reduced
Handwheel
Torque
Low Profile
One Piece Molded
Ansi B16.5 Flange
Panel Mount

8. Asahi/America Type 14 Flanged Diaphragm Valves
2 1/2”-4”

9. Asahi/America Type 14 Diaphragm Valves
Visual Indicator
Travel Stop
Reduced Seating
Torque
Increased Body&
Bonnet Thickness
PVDF Compressor
New Diaphragm
Design
One Piece
Molded Flange
Panel Mount
Provision

10. Asahi/America Type 15 Flanged Diaphragm Valves
5”-6”

11. Asahi/America Type 15 Flanged Diaphragm Valves
PVDF
Compressor
New
Bonnet/Body
Design
New Diaphragm
Design

12. Asahi/America Type 14 & 15 Diaphragm Valves
PVC,CPVC,PP and PVDF Materials
(Type 15 Not available in CPVC)
Multiple Diaphragm Materials
Body and Bonnet are solid thermoplastic
Unique Body to Bonnet design(Ultimate Sealing)
Position indicator & Adjustable travel stop are standard
Valve Body and Diaphragm are only wetted parts

13. Asahi/America Type 14 Diaphragm Valves
New Body & Bonnet Design
Lower Profile
Reduced Seating Torque
Bayonet Connection for Diaphragm
Provision for Support or Panel Mounting
Face to Face Interchangeability w/Type G

14. Asahi/America Type 14 True Union Diaphragm Valves
1/2”-2” .

15. Asahi/America Type 14 True Union Diaphragm Valves
Position Indicator
Travel Stop
Lower Seating Torque
PVDF Compressor
Low
Profile
Panel Mount Provision

16. Asahi/America Type 14 True Union Diaphragm Valves
Automation with no body modifications
Socket,Thread,Spigot
Reduced Seating Torque,Improved Sealing
Panel Mount Provision
Low Profile

17. Asahi/America Type 14 Diaphragm ValvesB
2” Square Nut
Chain Operator
Stem Extensions

18. Asahi/America Diaphragm Valve Options
Diaphragm materials available in Nitrile, Hypalon, Neoprene, PTFE, etc.
Electric & pneumatic actuators
PVDF gas barrier
2” square operating nuts
Locking handles
Manual limit switches
Stem extensions

19. Asahi/America Type 14 Pneumatic Diaphragm Valves
Position Indicator
Travel Stop
PPG Housing
Namur Pad Mount
Direct Mount
Panel Mount

20. Asahi/America Installation Recommendations
Diaphragm Valves:
Recommended Applications:
Control or Modulating
Slurry Services
Suspended Particles (Elastomeric Diaphragm only)
Severe Chemical Applications
Precautions:
Suspended Particles w/ PTFE Diaphragm