CPM Constant-Pressure Modulating Valve0 pages

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ky Control the Pressure of your System
CPM Constant-Pressure Modulating Valve
Concept
CPMI-2, CPMI-D60 and CPMO-2 are sanitary constant-pressure
valves. 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 are after separators, heat exchangers
or 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 are before filling/bottling machines etc.
Working principle
The valves are remote-controlled by means of compressed air. A
diaphragm/valve plug system reacts immediately to any alteration of
the product pressure and changes position so that the preset pressure
is maintained.
Standard design
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 cover and
the valve body are clamped together. The valve body and the seat are
welded together. 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 cover and the valve bodies are clamped together.

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TECHNICAL DATA

PHYSICAL 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 (∆p = 1 bar): . . . . . . . . . . Approx 7 m3/h.
Flow Kv 9 (∆p = 1 bar): . . . . . . . . . . Approx 9 m3/h.
Flow Kv2/15, low capacity (∆p = 1 bar): Approx 2 m3/h.
(Alternative size) . . . . . . . . . . . . . . . (regulating area). Approx. 15
m3/h. (CIP area).
Flow range Kv60, fully open (∆p = 1 bar)
(CPM-I-D60) . . . . . . . . . . . . . . . . . Approx 60 m3/h.

Materials
Product wetted steel parts:
Other steel parts: . . . . . .
Lower diaphragm: . . . . . .
Upper diaphragm . . . . . .

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Air Connections
R 1/4" (BSP), internal thread.

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1.4404 (316L).
1.4301(304).
PTFE covered EPDM rubber
NBR