Control Valves

Pre Heater Change over Protection System

Are used and designed to bypass hight pressure feed-water around a group of heaters in the event of high water level in the shell caused by a defective tube or welding.

  • PN160-630
  • ASME Class900-3200
  • DN100-600 | 4"-24"
  • T (°C)up to + 400°C
  • DesignQuick closing Stop Valve, 3-Way quick closing Valve, pneumatic actuated pilot valve, FO
  • MaterialsC-Steel, Mo-Steel, CrMo Steel
  • ConnectionsButtweldends
  • BonnetPressure sealed bonnet
  • Operation:Medium controlled

These valves are used to protect one or a group of preheaters in the event of damage to their high-pressure pipes. In the event of such a defect, the feed of the feed water must be shut off in a very short time and diverted through a bypass line. For this purpose, a quick-closing shuttle valve is installed in the pipe and a quick-closing check valve behind the preheater. The valves are controlled by their the own medium and will respond within a second time, so that protection can also be provided if electrical or pneumatic supply energies fail.

Benefits.:
– Protect the feed-water heater steam jacked
– Protect the turbine extraction from excessive back pressure
– Allows the feed water heater to be isolated for inspection
– Allowing by passing of the heater during start-up at low turbine load
– Allowing by-passing of the heater at peak loads to increase power output from the turbine

Contact Form



    Downloads

    Our Services

    Valves/Fitting service

    We ensure maintenance work on Valves and Fittings.

    This also includes adjustments, actuators and tests for new and used Valves/Fittings.

    Logistics

    Worldwide, longstanding best international connections and experienced employees guarantee flawless and reliable deliveries.

    Short-term availability

    Central and decentralized warehouses allow fast delivery of standard - industrial Valves and accessories, etc. Gate, Globe und Check, Butterfly valves, Ball valves, Glass level gauges and flow indicators, spare parts, from case to case also package deals

    Do You have Questions? Contact
    us from Monday to Friday from
    8 a.m. to 6 p.m.

    This site is registered on wpml.org as a development site.