FLeX Series pilot-operated, Normalement Ouvert , électro-proportionnel Étrangleur - flow 2-1 - 3000 psi (210 bar)
This valve is a pilot-operated, normally open, electro-proportional throttle with reverse free-flow check. Energizing the coil generates a closing force on the pilot stage which pushes the main stage poppet against the seat, proportionally blocking flow from port 2 to 1. In the open condition, flow from 1 to 2 will cause the valve to auto-close and only pilot flow will pass from 1 to 2.
- FLeX Series proportional valves are fully compatible with the XMD Expandable Mobile Drivers from Sun.
- Designed and tested to 10 million on-off operational cycles.
- Exceeds new NFPA test standard T2.6.1 R2014 for fatigue and burst pressure ratings.
- Improved linearity and resolution over similar competing valves.
- Designed using CFD fluid simulation for optimized geometries.
- For optimum performance, an amplifier with current feedback and adjustable dither (100 - 250 Hz) should be used.
- Capacities rated at 200-psi (14-bar) differential.
- Depending on circuit requirements, a reverse free flow check bypassing the compensator may be needed when using an FPB* with an external compensator.
- All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
- A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
- This valve utilizes the 740 Series low-power coils.
- A FULL DATA SHEET is available for this model using the link at the top of the page.
- Cette valve intègre le concept Sun de la cartouche à visser "flottante" qui permet de minimiser les contraintes internes dues à un couple de serrage excessif de la cartouche et/ou à des écarts d’usinage des cavités ou des cartouches.
Cavité | T-162A |
Taille | 0 |
Capacité | 5 gpm20 L/min. |
Pression maximale de fonctionnement | 3000 psi210 bar |
Hystérésis (avec dither) | 15%15% |
Linéarité (avec dither) | 3%3% |
Répétabilité (avec dither) | 3%3% |
Fréquence de dither recommandée | 140 Hz140 Hz |
Fuite Maximale à 24 cSt (100 SUS) | 0.004 in³/min.@3000 psi0,07 cc/min.@210 bar |
Pression d'ouverture du clapet de by-pass | 100 psi7 bar |
Gamme de Viscosité | 35 - 2000 SUS2,8 - 380 cSt |
Zone morte nominale (pourcentage du débit d'entrée) | 48%48% |
Temps de Réponse - Typique | 50 ms50 ms |
Fréquence de commutation | 15,000 max. cycles/hr15,000 max. cycles/hr |
Dimensions du six pans de la valve | 3/4 in.19,1 mm |
Couple de serrage de la valve | 20 à 25 lbf ft27 - 33 Nm |
Poids du composant | 0,35 lb0,15 kg |
Seal kit - Cartridge | Buna: 990162007 |
Seal kit - Cartridge | Viton: 990162006 |
I am afraid not. Unless you are overflowing your current valve and correctly size ours, you are not likely to notice any improvement. Priority flow controls are not efficient devices. They are an easy way to get more than 1 source of oil from 1 pump but they can generate a lot of heat. Try to size your actuators so the pressures are similar on both the priority and the bypass circuits. If you can't do that, try to have the lower flow leg be the lower pressure. The pump pressure is determined by whichever leg is higher and if there is flow that is taking a pressure drop that is not doing work it is creating heat.
All flow is blocked, hence the term priority. The priority flow has to be satisfied.
The valve acts as a 2 port restrictive flow control.
The spring force in our flow controls equates to about 100 psi (7 bar). This is high enough to give the valves acceptable capacity and not too high for proper circuit operation. 100 psi (7 bar) is the spring force; at the upper end of the flow control's range, the drop through the valve will be as high as 250 psi (17 bar) before it starts modulating.
Il y a exactement 15 gouttes Sun dans un centimètre cube.
In a meter-in flow control circuit if the pump is set at 3000 psi and the load is 2000 psi the drop through the flow control is 1000 psi. In a meter-out circuit with the load at 2000 psi the drop through the flow control is 2000 psi.
We claim +/- 10%. We set to +/- 5% in production testing to allow for differences in customers' conditions. If you want accuracy, stay in the bottom 2/3rds of the range. Our 12 gpm (45 L/min.) flow controls are quite flat at 9 gpm (34 L/min.) and dead flat below 6 gpm (23 L/min.), until you get to the bottom of the range. Below about .25 gpm (1 L/min.), spool leakage and orifice conditions start to limit accuracy.
Yes. All FLeX phase 1 valves are available in the SmartConnect schematic tool, and are also available for submittal to QuickDesign.
- Il est nécessaire de vérifier l'encombrement des cartouches lorsque vous sélectionnez un bloc foré. Différents types de valves, de dispositifs de contrôle, et de bobines nécessitent des encombrements disponibles différents.
- Pour permettre l'installation ou le retrait de la bobine il est nécessaire de prévoir une hauteur libre dans le prolongement du tube magnétique d'au moins 50,8 mm (2.00 in).
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