Three Distinct Functions

• Recirculation (bypass) flow control for pump protection
• Pre-fill of decoking lines, hoses, manifolds, etc., at a predetermined flow rate to prevent water hammer
• Full flow to the decoking tool nozzles. Very low pressure drop (high Kv [Cv]) in full flow for reduced energy consumption

Features and Benefits

• Cost-effective solution
• Design and maintenance simplicity with minimal moving parts
• No foundation required

Design Features

• Long Stroke, Single Stem Operation
  • Assures no unwanted overlap of functions
• Non-Clogging Design
  • Passes particles up to 3 mm (1/8 in)
• Compact Design
  • Simplifies installation. Suitable for direct mounting on the jet pump
• Stainless Steel
  • Inlaid at all gasket surfaces, option for fully lined body
• Valve Stem Sealing
  • Using low friction elastomer rings. No adjustment…no packing required
• Proven, Replaceable, Durable Soft Seals
  • Assures zero leakage with water and coke fines – no lapping required during repairs
• Instant Return
  • To any operating mode upon command
• Actuation
  • Limitorque® motor operator is standard. Optional double-acting pneumatic actuator with positioner is available with 5.5 bar (80 psi) to 7 bar (100 psi) air supply requirement
• Decoking Valve Upgrade Options
  • A Flowserve decoking expert can help specify appropriate materials and design enhancements, controls and instrumentation for specific service requirements

Control Valve Application Photo