Applications

This pneumatic regulating valve maintains uniform inlet or outlet pressure in hygienic process lines for the dairy, food, beverage, personal care and many other industries. Typical applications include filling and bottling equipment.

Benefits

• Safe, effective pressure control
• Self-draining design
• Excellent valve cleanability
• Easy to install, simple to operate
• High hygienic level

Standard design

The CPM Constant-Pressure Modulating Valve is available in three versions: the CPMI-2, the CPMO-2, and the CPM-ID60. The CPMI-2 and the CPMO-2 consist of a valve body with valve seat, cover, valve plug with a special diaphragm, and clamp. The diaphragm consists of two flexible PTFE and EPDM diaphragms supported by 12 stainless steel sectors between them. The cover and the valve body are clamped together. The valve body and the seat are welded together.The CPM-I-D60 consists of a valve body in two parts, an upper body and a lower body, as well as an inlet tube, cover, valve plug with diaphragm unit, and clamps. The cover and valve bodies are clamped together. ATEX version is also available.

Working principle

The Alfa Laval CPM Constant-Pressure Modulating Valve is controlled from a remote location by means of compressed air. A diaphragm or valve plug system reacts immediately to any alteration of product pressure and adjusts its position accordingly to maintain a constant inlet and outlet pressure at pre-set values.