CM Series Compact Diaphragm Valve

Diaphragm valves are the perfect solution when precise flow throttling is required.

  • Precise flow control
  • High cycle life
  • Excellent for abrasive slurries

 

The CM is a compact design with true union ends, available in PVC, CPVC, PP, or PVDF. With three diaphragm options (EPDM, FPM, or PTFE), these manually operated or pneumatically actuated valves are ideal for OEMs. A standard position indicator and integrated mounting bushings complete the long list of features.

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PRODUCT DETAILS

CM SERIES COMPACT DIAPHRAGM VALVES – NORMALLY CLOSED PNEUMATIC

Pressure: up to 90 psi at 73°F

Size: 1/2" in PVC and CPVC, 16 mm – 20 mm in PP and PVDF

These valves are widely used in high purity applications because their design prevents friction and subsequent particle creation when cycling. Many body and diaphragm material options are available as well as simple pneumatic actuation.

Automation & Accessories

IPEX diaphragm valves can be pneumatically actuated providing precise control of critical applications. The normally closed (fail close), normally open (fail open), and double acting VM valves make up of one of the most extensive ranges in the industry. The actuated CM provides a compact solution to automated needs while the DM employs an efficient direct acting design. All pneumatic diaphragm valves can be outfitted with many options and accessories such as: stroke limiters, optical and electric position indicators, electro-pneumatic positioners, pilot valves, and various combinations thereof.

SPECIFICATIONS

1.0 Diaphragm Valves - CM

1.1 Material

  • The valve body, including end connectors and unions shall be made of PVC compound which shall meet or

exceed the requirements of cell classification 12454 according to ASTM D1784.

or

The valve body, including end connectors and unions shall be made of Corzan® CPVC compound which shall meet or exceed the requirements of 23447 according to ASTM D1784.

or

The valve body, including end connectors and unions shall be made of stabilized PP homopolymer compound, also containing a RAL 7032 pigment, which shall meet or exceed the requirements of Type I Polypropylene according to ASTM D4101-86.

or

The valve body, including end connectors and unions shall be made of virgin, nonregrind PVDF compound which shall meet or exceed the requirements of Table 1 according to ASTM D3222.

  • These compounds shall comply with standards that are equivalent to NSF Standard 61 for potable water.
  • The valve bonnet assembly shall be made of reinforced polyamide (nylon).

1.2 Diaphragm

  • The diaphragm shall be made of EPDM which shall comply with standards that are equivalent to NSF Standard 61 for potable water.

or

The diaphragm shall be made of Viton® (FPM) which shall comply with standards that are equivalent to NSF Standard 61 for potable water.

or

The diaphragm shall be made of PTFE (backed with EPDM) which shall comply with standards that are equivalent to NSF Standard 61 for potable water.

1.3 All other wetted and non-wetted parts of the valves shall comply with standards that are equivalent to NSF Standard 61 for potable water.

2.0 Connections

2.1 Socket style

  • The IPS socket PVC end connectors shall conform to the dimensional standards ASTM D2466 and ASTM D2467.

or

The IPS socket CPVC end connectors shall conform to the dimensional standard ASTM F439.

or

The Metric socket PP end connectors shall conform to the dimensional standard ISO 3609.

or

The Metric socket PVDF end connectors shall conform to the dimensional standard ISO 10931.

2.2 Spigot style

  • The Metric spigot PP end connectors shall conform to the dimensional standard ISO 3609.

or

The Metric spigot PVDF end connectors shall conform to the dimensional standard ISO 10931.

 

3.0 Design Features

  • All valves shall be weir-style for throttling applications.
  • All bodies to be used with EPDM or Viton® diaphragms shall feature raised molded sealing rings (concentric).
  • All bodies to be used with PTFE diaphragms shall be machined flat.
  • All PTFE diaphragms shall feature a raised molded ring to combine sealing performance and longer life.
  • All through bolts shall be made of 304 stainless steel.
  • Bolts will thread directly into integrally molded brass inserts in the bonnet.
  • All manual valves shall have a rising position indicator.
  • Bodies of all sizes and materials shall have mounting brass inserts.

3.1 Actuators

  • All actuators shall be made of reinforced polyamide (nylon).
  • All actuators shall feature a smooth top (no nut holes) for cleanliness.
  • The edge of the actuator membrane shall be inside of the actuator protective housing.
  • All springs shall be cut from spring grade steel for maximum memory life and epoxy coated for maximum chemical resistance.
  • The following accessories shall be available for all actuators: position indicator, stroke limiter, stroke limiter with position indicator, limit switch, limit switch box,

3-15 psi positioner, 4-20 mA positioner, solenoid pilot valve.

3.2 Pressure Rating

  • All valves shall be rated at 90 psi at 73°F.

3.3 Markings

  • All valves shall be marked to indicate size, material designation, and manufacturers name or trade mark.

3.4 Color Coding

  • All PVC valves shall be color-coded dark gray.

or

All CPVC valves shall be color-coded light gray.

or

All PP valves shall be color-coded beige gray.

or

All PVDF valves shall not be color-coded and be white in appearance.

4.0 All valves shall be Xirtec® 140, Corzan®, PP or PVDF by IPEX or approved equal.