Valves - Electro-proportional Controls - Non-Compensated - 2-Position 2-Way - Normally Closed - Poppet Type - Restrictive Reverse Flow

SP16-20X

PROPORTIONAL SOLENOID VALVE 2 PORT, NORMALLY CLOSED

Overview

Description

A solenoid-operated, 2 port, normally closed, poppet-type, proportional, screw-in hydraulic cartridge valve, designed for low leakage blocking and load-holding applications.

Operation

OPERATION: When de-energized, the valve acts as a check, allowing flow from port 1 to port 2, while blocking flow from port 2 to port 1. WHen energized, the poppet lifts to open the port 2 to port 1 flow path. In this mode, flow from port 1 to port 2 is severely restricted.

Features

  • Continuous-duty rated coil.
  • Efficient wet-armature construction.
  • Manual override options.
  • Optional waterproof E-Coils rated up to IP69K.
  • Industry common cavity.
Pressure Ratings
Pressure rating:
  • 250 bar (3625 psi) Per NFPA T2.6.1 R2-2000 using 99.9 assurance and 90% verification levels
Proof pressure:
  • 344 bar (5000 psi)
Burst pressure:
  • 779 bar (11300 psi)
Flow Ratings
Flow rating:
  • 227.4 lpm (60 gpm) Based on 34.4 bar (500 psi) pressure drop (see performance graphs)
Maximum internal leakage:
  • 5 drops/min At rated pressure
Hysteresis:
  • 5 % Maximum up to 60% of imax
  • 10 % Maximum from 60% of imax up to imax
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM b117
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 20/18/14 per ISO 4406
Unit weight:
  • 0.345 kg (0.76 lb) SP16-20J
  • 0.376 kg (0.83 lb) SP16-20Y
  • 0.38 kg (0.84 lb) SP16-20M/T
Internal wetted surface area:
  • 221 cm² (34.2 in²)
Valve inductance:
  • 166 mH
Maximum control current:
  • 1.2 A D-coil 12 Vdc
Threshhold current:
  • 0.4 A D-coil 12 Vdc (see performance graphs)
Dither PWM frequency:
  • 100 to 400 Hz
SP16-20X_Perf1(2022-02-24) SP16-20X_Perf2(2022-02-24) SP16-20X_Perf3(2022-02-24) SP16-20X_Perf4(2022-02-24) SP16-20X_Perf5(2022-02-24)
SP16-20X_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 62.4 to 73.2 N-m (46 to 54 ft-lb)
Coil nut torque:
  • 6.8 to 9.5 N-m (5 to 7 ft-lb)
Orientation restriction:
  • None
SP16-20X_Order(2022-02-24)