Characterised Control Valves

Characterised Control Valves

  • Series: EK – Pneumatic
  • EE – Electric
  • Sizes: 1/2″- 4″
  • Ends: Flanged
  • Type(s): Single Seat Globe, or Needle Type
  • Shaft Seals: PTFE Bellows
  • Body Seals: EPDM, FKM (Viton®), FEP
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The Chemline EE/ EK Series Characterized Control Valves provide extremely precise flow control of aggressive fluids. Valves flow characteristics (Cv vs. lift) follow theoretical linear or equal percentage curves through the entire range of stem travel. This is accomplished with precision made replaceable seats and plugs in a wide variety of Cv values. The PTFE bellows shaft seal provides almost frictionless stem movement and provides over 10 years of maintenance-free operation on aggressive chemical services.

Electrically Actuated (EE Series) Specs:

  • Power Supply: 115 VAC/50/60Hz
  • Duty Cycle: 50%
  • Enclosure Rating: NEMA 4X, IP 65 with temperature and load protection
  • Current Draw: 0.23 amps
  • Maximum Power Consumption: 30 VA
  • Adjustable Opening/Closing Times:
  • ½” to 2″ valves: 32 to 62 sec.
  • 2-½” to 4″ valves: 55 to 111 sec
  • Control Input: 0-10 V or 0-20mA
  • Optional Voltages: 230 VAC/50/60Hz, 24 VDC or 24VAC 4-20mA Retransmit

Pneumatically Actuated (EK Series) Specs:

  • Actuator Housing: Glass reinforced Polyester
  • Actuator Springs: Coated SS
  • Stem and Mounting Hardware: 316 SS
  • Control Air: Max 90 psi
  • Operation: Reversible, closed or opened by spring or double acting
  • Mounting Position: Optional
  • Air consumption: 0.35-1.0 l/lift
  • Stem Lift: 15 mm(½” and ¾”), (1″to 2″), 40 mm (2½” to 4″)
  • Working Pressure:150 psi

✓ Precise and Sensitive Predictable and repeatable control of corrosive fluids. These valves respond smoothly and quickly to small changes in signal. Deadband and hysteresis is negligible

✓ Changeable Plugs and Seats Valve CV may be changed later if fluid conditions change

✓ Low Maintenance

✓ Abrasion Resistant Have outperformed metal valves on aggressive and crystallizing services

✓ High Rangeability Valve characteristics (flow rate vs. stem lift) follows the theoretical curves through the entire range of opening including extreme ends of travel

✓ Class IV Leakage Rate is 0.01% of rated capacity according to ANSI B16.104-1976

✓ Large Choice of Cv Values H18 standard Cv’s from 0.11 to 105.00, Smaller Cv’s down to 0.003 are also available

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