Alfa Laval CPM Constant Pressure Valve

CPMI-2, CPMI-D60 and CPMO-2 are sanitary constant-pressure valves for use in stainless steel pipe systems.

 

Contact Us
Hotline: (84.0) 906 803 393

Product detail

  • Product code
    Alfa Laval - CPM
  • APPLICATIONS
    Dairy, food and beverage industries
Automated, closed system

Concept

CPMI-2 and CPMI-D60 (Constant-Pressure Modulating Inlet) maintain a constant pressure in the process line at the inlet side of the valve. Typical applications of CPMI-2 and CPMI-D60 are after separators, heat exchangers etc. and as overflow valves.

CPMO-2 (Constant-Pressure Modulating Outlet) maintains a constant pressure in the process line at the outlet side of the valve. Typical applications of CPMO-2 are before filling/bottling machines etc.

 

Working principle

CPMI-2, CPM-I-D60 and CPMO-2 are remote-controlled by means of compressed air. The valves operate without a transmitter in the product line and require only a pressure-regulating valve for the compressed air and a pressure gauge in the product line. A diaphragm/valve plug system reacts immediately to any alteration of the product pressure and changes position so that the preset pressure is maintained.

Automated level control

Standard Design-CPMI/O-2

The CPMI-2 and CPMO-2 consist of a valve body with valve seat, cover, a valve plug with a diaphragm unit and a clamp. The diaphragm unit consists of a stainless steel disc, which is divided into sectors, and of flexible diaphragms, which are placed on each side of the sectors. The cover and the valve body are clamped together. The valve body and the seat are welded together.

 

Standard Design-CPMI-D60

The CPM-I-D60 consists of upper and lower valve bodies, an inlet tube, a cover, a valve plug with diaphragm unit and clamps. The diaphragm unit consists of two flexible diaphragms supported by 12 stainless steel sectors in between them. The cover and the valve bodies are clamped together.

Technical specifications

  • Product code
    Alfa Laval - CPM
  • APPLICATIONS
    Dairy, food and beverage industries
 

TECHNICAL DATA

Max. product pressure: . . . . . . . . . . 1000 kPa (10 bar).
Min. product pressure: . . . . . . . . . . 0 kPa (0 bar).
Temperature range: . . . . . . . . . . . . . 10°C to 95°C (EPDM).
Temperature range with upper diaphragm
in PTFE/EPDM: . . . . . . . . . . . . . . . 10° C to +140° C.
(Higher on request).
Air pressure (CPMI-2/CPMO-2): . . . . . 0 to 800 kPa (0 to 8 bar).
Air pressure (CPM-I-D60): . . . . . . . . 0 to 600 kPa (0 to 6 bar).
Flow Kv 23, fully open (Dp = 1 bar): . . Approx 23 m3/h.
Flow Kv 7 (Δp = 1 bar): . . . . . . . . . . Approx 7 m3/h.
Flow Kv 9 (Δp = 1 bar): . . . . . . . . . . Approx 9 m3/h.
Flow Kv2/15, low capacity (Δp = 1 bar): Approx 2 m3/h.
(Alternative size) . . . . . . . . . . . . . . . (regulating area). Approx. 15
m3/h. (CIP area).
Flow range Kv60, fully open (Δp = 1 bar)
(CPM-I-D60) . . . . . . . . . . . . . . . . . Approx 60 m3/h.

PHYSICAL DATA

Materials

Productwetted steel parts: . . . . . . . . 1.4404 (316L).
Other steel parts: . . . . . . . . . . . . . . 1.4301(304).
Lower diaphragm: . . . . . . . . . . . . . . PTFE covered EPDM rubber
Upper diaphragm . . . . . . . . . . . . . . NBR

 

Diaphragm Unit

CPMI-2 and CPMO-2: The diaphragm unit consists of a stainless steel disc which is divided into sectors and of flexible diaphragms which are placed on each side of the sectors. CPM-I-D60: The diaphragm unit consists of two flexible diaphragms supported by 12 stainless steel sectors in between them.

 
CPM Constant Pressure Modulating Valve 1063476 kB
Related products
Sample valves - Alfa Laval

Sample valves - Alfa Laval

Alfa Laval sampling valves make it possible to obtain representative samples of food and beverage, personal care and biopharm products.
Safety valve-Alfa Laval

Safety valve-Alfa Laval

Safety valves are used for overpressure or vacuum protection in tank and pipelines. Protects against implosion due to vacuum caused by cold rinsing after hot cleaning; against implosion due to caustic absorbed in CO2 atmosphere/temperature fluctuations or against implosion due to blocking of gas supply during emptying.
Unique Mixproof valves - Alfa Laval

Unique Mixproof valves - Alfa Laval

Alfa Laval Unique Mixproof valves enable simultaneous flow of two products or fluids through the same valve without risk of cross-contamination. Their exceptional spillage free operation is compliant with most hygienic standards.
Aseptic Mixproof valve type AMV

Aseptic Mixproof valve type AMV

The Alfa Laval Aseptic Mixproof Valve ensures product safety and provides full protection against the intrusion of harmful microorganisms, even during unwanted pressure spikes. This double-seat mixproof valve is perfect for use in sterile process applications in the food, dairy and beverage industries. Easy to configure, operate, maintain, it reduces the total cost of ownership by up to 45% compared to other aseptic valves.
Double seal valves - Alfa Laval

Double seal valves - Alfa Laval

Alfa Laval double seal valves SMP-BC is a hygienic pneumatic seat valve, designed for safety and leak detection when two different products flow through only one valve.
Diaphragm valves - Alfa Laval

Diaphragm valves - Alfa Laval

The standard Unique DV-ST UltraPure is designed either for manual operation or for Pneumatic operation. The valve consist of a valve body, diaphragm, handle or actuator.
Single seat valves - Alfa Laval

Single seat valves - Alfa Laval

Our range of single seat valves consists of large numbers of purpose-designed valve units that are very robust and flexible. They are ideal for use in processes with a high hygiene standard.
Ball valve - Alfa Laval

Ball valve - Alfa Laval

Our ball valves are constructed with a full-flow body design, enabling the product to pass through the valve with no restrictions and with a minimal pressure drop. The basic design allows cleaning and product recovery using pigging systems, and they are ideal for use with viscous liquids and liquids containing solid or semi-solid particles. Alfa Laval SBV and Alfa Laval Tri-Clover® designations
Check valves/ Non-return valve- Alfa Laval

Check valves/ Non-return valve- Alfa Laval

Non-return valve/ Check valve LKC-2 is designed for use in stainless steel pipe installations to prevent reverse flow.

Product Benefits:

  • Highly reliable
  • Easy to install
  • Protection for process equipment
Butterfly valve- Alfa Laval

Butterfly valve- Alfa Laval

Our butterfly valves are straightforward on/off routing valves with a substantial opening area and low flow resistance. They are an optimal solution in modern processing technology and ideal for use with low and medium-viscosity liquids.

Menu