AV Manual Diaphragm Valves

Series: Type 14/15/72
Sizes: Type 14: 1/2″- 4″
Type 15: 5″ – 6″
Type 72: 8″ – 10″
Ends: Flanged: 1/2″ – 10″
True Union Socket, Threaded or Butt: 1/2″ – 2″
ChemFlare: 1/2″ – 1″
Diaphragms: EPDM, or PTFE


AV Manual Diaphragm Valves

Chemline Type 14(1/2” to 4”) and Type 15(5” and 6”) Diaphragm Valves are an improved version of the older DV Series. The 8” and 10” DV’s are still current design but are now called Type 72. Types 14 and 15 have been redesigned using modern computer design technology. Improvements are higher pressure resistance, lower hand wheel torques to close, better hydraulics (lower pressure losses) and other features. Tests show Type 14 to outperform major competitors in resistance to bonnet leakage on tough applications with thermal cycling.

Chemline Diaphragm Valves have service histories dating back to 1970 operating in some of the toughest chemical plant applications in Canada. They have proven internal and external corrosion resistance.

This is an excellent throttling valve, and is suited for slurries or viscous liquids. Because of the self-draining design with no dead volume, it is good for sanitary and high purity applications. These diaphragm valves offers higher temperature/pressure ratings and chemical resistance compared to other Chemline valve types.

✓ Excellent Chemical Resistance
Large Selection of materials including PVDF bodies and PTFE diaphragms for extremely aggressive services
✓ Externally Corrosion Resistant
Plastic bonnet, handwheel, covered and sealed indicator
✓ High Pressure Resistance
Designed with a high safety factor against leakage
✓ Designed for Long Diaphragm Life
Standard travel stop prevents over-tightening and excessive stress on diaphragm


Electric Actuation

Model Valves/Torque Operation/Control Position Indication
A-series electric actuator
Diaphragm: up to 6″
Torque: up to 2000 in-lbs
On-Off (3 wire)
Adjustable Travel

On-Off (2 wire), Failsafe
Multi-Turn, 3-Postion
Modulating, BUS (custom)

2 Feedback Switches
Feedback Potentiomete
Feedback Transmitter

Pneumatic Actuation

Pneumatically Actuated Diaphragm type actuators made of PPGare available normally closed, normally open or double acting. 1/2” to 2”. All control accessories may be directly mounted. Valve sizes 3” to 10” are available with pneumatic piston actuators.

Model Valves Operation/Control Material
Type 14 Pneumatically Actuated Diaphragm Valves
Diaphragm: up to 2″ Air Supply:
60 PSI min.
90 PSI max.
Glass filled polypropylene


cga flange gaskets

Hand Wheel Lock-out

cga Flange Splash Guards

Flange Splash Guards

cga municipal operating nut-s

Chainwheel Operator

cga coated chem-bolts


cga flange gaskets

Flange Gaskets