Koltek Valves

Alfa Laval Koltek Shutter Valve Application

• Reduced pressure drop and simplified internal contours ensure continuous inline flow, hence improving process hygiene and efficiency.
• Make the most of your processes by managing the flow of very viscous fluids and improving their efficiency.
• A three-way inline valve can provide greater routing options.
• Allow high-viscosity and large-particle process fluids to move through more easily, increasing yields.
• Installing a valve with one port in the vertical (down) position promotes process hygiene and reduces product losses caused by total drainability.

Related Industries

• Beverage Processing
• Food Processing
• Home Care

Benefits

1. Flexible in-line valve with three-port flow diversion
2. Minimized pressure loss
3. Hygienic design
4. Capable of handling products highly viscous, contain large particles, or have strict requirements to minimize pressure loss

TECHNICAL DATA

• Max. temperature: 110°C
• Max. pressure against shutter: 300 kPa (3 bar)
• Max. pressure behind shutter: 1000 kPa (10 bar)
• Air pressure for actuator:
  • Max. 800 kPa (8 bar)
  • Min. 500 kPa (5 bar)

The standard design

The Koltek valve features a PTFE shutter, three pipe connection ports, an internal cylindrical bore, and a strong body. The shutter is supported and set by an internal shaft, which is guided by rings or bearings on the two lids. The shaft can be turned manually using the stainless-steel handle or automatically using the actuator. A gear wheel on the valve shaft engages a toothed bar connected to a set of cylinders and one or two major pistons in the actuator. Pressure shocks in the valve do not affect the system.

Working Principle

The Alfa Laval Koltek Valve is operated by an actuator or handle. A spring mechanism presses the shutter against the inner cylindrical surface of the valve body, ensuring perfect sealing.

An indicator device can be mounted laterally to the air-actuated valve to remotely indicate the valve position, or an Alfa Laval ThinkTop® V50 or V70 control unit can be used.
On the side of the manually controlled valve, you’ll discover indication units for Alfa Laval LKLA actuators. The valve actuator is available in both single-acting and double-acting configurations. The single-acting actuator is powered by a single piston, whereas the double-acting actuator is powered by two.