Combined Check Valve

Features

Main Product Features

• Hydraulic actuator with weight, quickly and reliably close the valve, butterfly, ball, and control valve
• A modular concept, compact design and standard attachment by ISO 5211 allows assembly quick and easy on valve, HYDROMAT® system “plug and play”
• Specially bearing of lever with the weight is performed so inside the actuator housing that on two bearing seats only transmit torque and no additional burdens to valve shaft, provide a simple and easy assembly
• Actuator is standard equipped with its own hydro power unit for autonomous operations, or can be used as an external source of hydraulic fluid pressure from 70-250 bar
• Actuator with its own hydro-aggregate is used for opening and automatic keeping open the valve position Standardly is used very reliable compact electro-hydraulic power units type CEHPU design enables seamless functionality in a working environment temperature -40/+80 º Special request and design of hydro power pack (carbon steel, stainless steel…) or different pneumo-hydraulic combinations
• On request offered is an also special version of power units: pneumatic, pneumo-hydraulic, etc… (see a separate catalogue for the hydraulic power units)
• All versions of actuators are equipped with a hand pump in a case of emergency forcible valve opening
• Structure was constructed with a lot of attention to respecting the regulations on environmental protection and the prevention of contamination with mineral oil
• Weight and lever are made separately (modular concept), simple installation can be easily incorporated into individual approach to solving the specific operating conditions.
• Standard version is performed with 2 adjustable end position micro-switch (protection IP65) for detection of valve openness and closing
• On special request actuator can be equipped with a rotary encoder (4-20 mA) position or additional micro switches
• Intelligent design the valves with suitable sensors for closing or opening controlling of flow and pressure
• Standard version has adjustable of 2 damping stages for closing process. On request is performed in 3 stages damping with activation in any position closing process
• Automatic safety shut off, as a standard, offers the possibility to connect a reliable device (paddle trip mechanism) for detecting and triggering the flow over speed, eg, ruptured pipeline.
• The concept of electro-hydraulic control system NO (normally open) or NC (normally closed)
• With fixed mechanical limiters can be adjusted closed position ± 3%
• With self-aligning clevis with its (un) tightening can be adjusted open position ± 3%
• Adjustable the valve opening and closing time with flow control valve-pressure compensated with security function
• Using a “service pin” is possible to “locking” the valve at the open and close position in a case of service works as a safety
• Actuators type HAWL designed: max operation pressure 160 bar, test pressure 250 bar