Pressure regulating valves , Pilot operated, Spool type with relieving feature C04B3H - Sterling Hydraulics - #1
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| R E G U L A T I N G V A L V E S |  | C04B3H C04B3M | UP TO | 120 L/MIN 350 BAR | 32 usgpm 5000 psi | ||||||||||||
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| PRESSURE REGULATING VALVE PILOT OPERATED, SPOOL TYPE WITH RELIEVING FEATURE. ■ Maximum pressure setting up to 350 bar 5000 psi. ■ Low pressure rise/flow characteristic. ■ Spool valve for good stability. ■ Partial reverse flow capability. ■ Hardened working parts for maximum durability. ■ Adjustable, preset and tamperproof versions available. ■ Preset version is tamperproof and compact. operation The adjustable spring-loaded ball in the pilot section is shifted at valve setting by the regulated outlet pressure sensed through an orifice in the main spool from port [3]. The resulting pilot flow creates a pressure drop across the spring-loaded main spool that then meters the supply flow from port [2], maintaining the regulated pressure on port [3]. An increase in the regulated pressure causes the spool to lift further and acts as a service line relief valve, closing the supply port [2] and then relieving to port [1]. Ports [2] and [3] remain normally open when port [3] pressure is below the valve setting. Back pressure on port [1] adds to the valve setting. |  | ||||||||||||||||
| SPECIFICATIONS | |||||||||||||||||
| BASIC MODEL NUMBER | C04B3H | C04B3M | TYPICAL PERFORMANCE | ||||||||||||||
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| SYMBOL | i UT | Measured at 30 cSt 140 SSU (For cartridge only) 400_RELIEVING & REGULATING PERFORMANCE | |||||||||||||||
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| 5800 | RELIEVING 3 | — 1 | REGULATING 2 — 3 | ||||||||||||||
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| RATED FLOW | 120 l/min 32 USgpm | '3 300 | |||||||||||||||
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| PRESSURE | 10 - 210 bar 145 - 3000 psi | 10 - 350 bar 145 - 5000 psi | Q. O ŕ | 200 2900 | Q_ .23 | ||||||||||||
| tu □ w w IL | |||||||||||||||||
| MAX. INLET PRESSURE | 420 bar 6000 psi | 100 1450 | |||||||||||||||
| SENSITIVITY: PRESSURE/TURN | 30 bar 435 psi | 55 bar 800 psi | |||||||||||||||
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| FLUID * | MINERAL OIL OR SYNTHETIC FLUID WITH LUBRICANT PROPERTIES | BASIC VALVE PRESSURE DROP | |||||||||||||||
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| IDEAL VISCOSITY* | 15 - 50 cSt 80 - 230 SSU | 120 80 40 0 40 80 120 31.7 21.1 10.6 10.6 21.1 31.7 Flow l/min USgpm | |||||||||||||||
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| SEAL MATERIAL / TEMPERATURE * | NITRILE (Std.) -30°C to +100°C BUNA-N -20°F to +210°F | APPLICATION NOTE | |||||||||||||||
| VITON | -20°C to +150°C -4°F to +330°F | ||||||||||||||||
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| FILTRATION | 25 MICRONS (Nom.) OR BETTER | ■ Drain line should be piped directly to tank. Any back pressure in the drain line will be additive to the regulated pressure. | |||||||||||||||
| WEIGHT | 0.24 kg 0.53 lb | ||||||||||||||||
| CAVITY | CAV04-3 | ||||||||||||||||
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| * IMPORTANT: See pages 582-583 for additional notes on operating conditions. Specifications may change without notice | |||||||||||||||||
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