FLeX Series, 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1

Capacity: 10 gpm40 L/min. | Cavity: T-162A
DFBF : FLeX Series, 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1
Technical Features [ + ]

This FLeX Series solenoid-operated 2-way, 2-stage cartridge is a pilot-operated directional poppet valve. The valve is low leakage and available in either a normally open or normally closed configuration to control flow from port 2 to port 1. A reverse flow check will allow flow from 1 to 2 in the closed condition. In the open condition, flow from 1 to 2 will cause the valve to auto-close and pilot flow will pass from 1 to 2.

  • Designed and tested to 10 million on-off operational cycles.
  • Meets new NFPA test standard T2.6.1 R2014 for fatigue and burst pressure ratings.
  • Higher flow rates than competing valves of similar size.
  • Designed using CFD fluid simulation for optimized geometries.
  • All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
  • Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
  • This valve exhibits extremely low leakage - 0.004 in3 (0.07 cc3)/min (1 drop/min).
  • This cartridge utilizes both FLeX high-power and hazardous location coils.
  • This valve is available with a manual push-type override option for normally open versions only.
  • A FULL DATA SHEET is available for this model using the link at the top of the page.
  • A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
Technical Data [ + ]
Note: Data may vary by configuration. See CONFIGURATION section.
Cavity T-162A
Series 0
Capacity 10 gpm40 L/min.
Maximum Operating Pressure 5000 psi350 bar
Response Time - Typical 50 ms50 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 0.004 in³/min.@5000 psi0.07 cc/min.@350 bar
Check Cracking Pressure 50 psi3,5 bar
Switching Frequency 15000 cycles/hr15000 cycles/hr
Viscosity Range 35 - 2000 SUS2,8 - 380 cSt
Valve Hex Size 3/4 in.19,1 mm
Valve Installation Torque 20 - 25 lbf ft27 - 33 Nm
Model Weight 5.6 oz.159 grams
Seal kit - Cartridge Buna: 990162007
Seal kit - Cartridge Viton: 990162006
Performance Curves [ + ]
FAQs [ + ]

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Nominal flow capacity is based on performance limits. Maximum flow capacity is based on pressure drop. When selecting any direct-acting solenoid valve, first check the performance limits plot, then check if pressure drop is acceptable.
Yes. All FLeX phase 1 valves are available in the SmartConnect schematic tool, and are also available for submittal to QuickDesign.
Yes. All FLeX valves utilize the Sun floating nose design.
DF** FLeX cartridges shift at rated flow and pressure.
Notes [ + ]
  • Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
  • An additional 2.00 inches (50,8 mm) beyond the valve extension is needed for coil installation and removal.
Additional Resources [ + ]
Coil Information [ + ]

No coil selected.