Plastic Diaphragm Valves - Type 14/15 and Type 72 Series

Type 14: 1/2" to 4"

Type 72: 8" to 10"

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.

Features

Excellent Chemical Resistance
Large choice of materials including PVDF bodies and TeflonR diaphragms for extremely aggressive services

Externally Corrosion Resistant
Plastic bonnet, handwheel, covered and sealed indicator
Bonnet seals protect internal parts from corrosive environments

High Pressure Resistance
Designed with a high safety factor against leakage
Tight closing with low hand wheel torque
Highest pressure vs. temperature ratings of all plastic valve types

Designed for Long Diaphragm Life
Standard Travel Stop prevents over-tightening and excessive stress on diaphragm.
Special design of compressor eliminates point loading of diaphragm stud, extending life.

Standard Flange Face-to-Face Lengths
Same lengths as ITT plastic lined (1/2" to 2", 3" to 4")

**PVC, PP, CPVC, PVDF***
Series & 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" ChemFlareTM*: 1/2" – 1"
Diaphragms:	EPDM, Teflon®****
	Type 14, Type 15 & Type 72 Series Diaphragm Valve Data Page
	Installation and Maintenance Manual

* Up to 4" only in CPVC.
** Butt fusion ends are for connection to Chemline PP and PVDF metric piping systems.
*** For ChemFlareTM end connectors, consult Chemline.
**** Other diaphragm materials are available.

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