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LDLS (Logic valves with monitoring switch)

LDLS (Logic valves with monitoring switch)

LDLS (Logic valves with monitoring switch)

Product catalog summary
Overview: The document provides technical specifications and operational details for a Logic Valve with a Monitoring Switch, certified with IP 65 CE. It includes information on the valve's design, operational parameters, and installation guidelines.
Specifications:
  • Max Operating Pressure: 30 MPa
  • Rated Flow: Varies by model, e.g., LDLS-16 has a rated flow of 130 L/min.
  • Cracking Pressure Options: 0.05, 0.2, 0.35 MPa
  • Orifice Designations: Ranges from 0.8 to 2.5
  • Monitoring Switch Ratings: AC 125V, AC 250V, DC 24V with a load range of 0.08 to 0.2 A
Procedures:
  • The monitoring switch is connected to the poppet to detect open and close positions.
  • For DC current control, a surge absorber is recommended to manage the circuit.
Installation Guidelines:
  • Includes detailed mounting dimensions and bolt specifications for various models (e.g., LDLS-16, LDLS-25).
  • Socket head cap screws and tightening torque values are specified for secure installation.
Performance Graphs:
  • Flow vs. Pressure Drop graphs are provided for different models, indicating performance under various conditions.
  • Graphs are based on non-spring type configurations, with specific notes on pressure drop under cracking pressure.
Additional Information:
  • Patent information: Taiwan Patent M 415228, with a patent application in China.
  • Contact details for YUKEN EUROPE Ltd are provided for further inquiries.
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Catalog excerpts

LDLS (Logic valves with monitoring switch)-1

Logic Valve with Monitoring Switch Max. Operating Pressure 30 MPa Logic Valve With Monitoring Switch The Limits Switch is connected to the poppet to monitor the open and close position of the logic valve Upon the poppet opening , we can sense the signal at once Taiwan Patent M 415228 Applying patent in China Model Number Designation LDLS Valve Size Cracking Pressure Location of orifice X Pilot port LDLS Logic valve with Monitoring Switch Graphic Symbols Without spring None : No orifice ( Standard ) : Designation of orifice : Designation of orifice : Designation of orifice : Designation of orifice : Designation of orifice : Designation of orifice : Designation of orifice : Designation of orifice Ratings Rated Flow Cracking Pressure Max. Operating Pressure Mass ( kg ) with Mounting Bolts Monitoring Switch Movement Range Logic Valve Poppet Position Poppet Close Cushion Position Poppet Open 3 Monitoring Switch Movement 1. The rated flow is the flow with a pressure drop of 0.3 MPa , without the spring 2. Please refer to the following page for the actual pressure drop , flow vs pressure graph Monitoring Switch Wiring Diagram NC Monitoring Switch Ratings Mounting Bolts Model No. Socket Head Cap Screw Life time ( Cycle ) 3 ( Changeover Frequency 30 cycle / min ) 1. MAX. Changeover Frequency 60 /min 60 RH 2. Ambient Temperature 0 ~ 70 3. When DC current controlled, please use surge abso rber to control the circuit

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LDLS (Logic valves with monitoring switch)-2

Logic Valve With Monitoring Switch LDLS - Flow vs Pressure Drop This pressure drop curve is based on non-spring type, if selec t the cracking pressure of 05, 20, 35, the pressure drop under the cracking pressure is as same as the cracking pressure EX : LDLS-32-20-10, cracking pressure 0.2 MPa (2 kgf/cm 2 ) Flow Rate ( L/min ) Flow Rate ( L/min ) Flow Rate ( L/min ) Flow Rate ( L/min ) Flow Rate ( L/min ) Flow Rate ( L/min )

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LDLS (Logic valves with monitoring switch)-3

Logic Valve With Monitoring Switch Dimensions RATED VOLTAGE ( V ) AC125 AC250 DC24 APPLIANCE LOAD (A) 0.08 ~ 0.2 8321-110VN0190A

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LDLS (Logic valves with monitoring switch)-4

YUKEN EUROPE Ltd 51 Spindus Road, Speke Hall Industrial Estate Liverpool, UK, L24 1YA Tel: +44 (0)151 486 4696 Fax: +44 (0)151 486 3537 Logic Valve With Monitoring Switch LDLS - Base Base Allowance Allowance dimension dimension Base Base Allowance Allowance dimension dimension

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