Pilot Operated Sequence Valves

Pilot operated sequence valves allow multiple functions to work in sequence based on pressure. Available internally piloted with external drain or externally piloted with internal drain. Capable of flows up to 40 GPM and pressures to 5000 PSI.

Полное описание продукта

SVH081, SVH101, and SVH161 pilot operated sequence valves are internally piloted and externally drained. All three versions are normally closed spool-type valves that prevent flow from passing through the valve until the adjustable pressure setting is reached. When the inlet pressure exceeds the sequence setting the valve is internally piloted open allowing flow downstream to a secondary function. An external drain port plumbed directly to tank ensures that downstream pressure does not affect the pressure setting. Clamp and machine, or unlock and dump, are typical applications since they require one function to happen before another one.

SVH102 and SVH162 are externally piloted and internally drained sequence valves. Both are normally closed and prevent flow from passing through the valve when the pilot pressure is below the pressure setting. When the external pilot source exceeds the adjustable pressure setting, the valve opens allowing flow to go downstream. Back pressure on the downstream port is added to the valve setting due to the internal drain, therefore it is most common to connect the sequenced port to tank. High-Low Pump Unloading is a common application.

SVCH101 is an inline mounted combination of an internally piloted, externally drained sequence valve and a reverse flow check. An SVH101 sequence valve and a CVH103 check valve are incorporated into a single body with SAE-8 work ports and an SAE-6 drain.

Parker’s pilot operated sequence valves have multiple pressure ranges up to 5000 PSI and flow capabilities up to 40 GPM. Fixed, screw, knob, or tamper-resistant pressure adjustment options are available. Typical markets and applications include: Clamp and Drill, Un-Lock and Dump, High-Low Pump Unloading, Industrial Power Units, Machine Tools, Material Handling, Construction, Agriculture, etc.

Характеристики

Расход:	12, 15, 40 Gal/min, 45, 56.3, 151.6 L/min
Максимальное расчетное давление на входе:	5500 psi, 380 bar
Расположение вспомогательного клапана:	Internal, External
Вариант со сливом:	External, Internal
Максимальное давление в баке:	5000 psi, 350 bar
Максимальный расход слива:	0.15, 0.25, 0.5, 1 Gal/min, 0.56, 0.94, 1.87, 1.9, 3.79 L/min
Интенсивность утечек:	82 @ 3000 PSI (210 BAR), 5 per 100 PSI (6.8 BAR) setting, 82 @ 75% Crack Pressure, 82 @ 3000 PSI (210 BAR) cm3/min
Размер полости:	C08-3, C10-3, C16-3, C10
Диапазон регулирования давления:	100-1000, 100-2000, 200-3000, 200-5000, 300-1000, 200-2000, 300-3000, 500-5000 psi, 6.9-69, 6.9-138, 13.8-207, 13.8-345, 20.7-69, 13.8-138, 20.7-207, 34.5-345 bar
Регулировочный механизм:	Fixed, Knob Adjust, Screw Adjust, Tamper Resistant Cap
Стандартное давление посадки:	500, 1000, 1500, 2500 psi, 34.5, 69, 103.5, 172.4 bar
Чувствительность регулирования давления:	285 per turn, 570 per turn, 855 per turn, 1910 per turn, 334 per turn, 539 per turn, 867 per turn, 1711 per turn psi, 19.6 per turn, 39.3 per turn, 59 per turn, 131.6 per turn, 23 per turn, 37 per turn, 59.7 per turn, 118 per turn bar
Давление открытия:	5, 20, 50, 65, 100 psi, 0.3, 1.4, 3.5, 4.5, 6.9 bar
Материал уплотнения:	D-Ring (Standard), Nitrile, Fluorocarbon
Рабочая температура:	-50° to +270°, -30° to +250°, -15° to +400° °F, -45° to +132°, -34° to +121°, -26° to +204° °C
Материал клапана:	All parts steel. All operating parts hardened steel
Материал корпуса:	Steel
Максимальная кинематическая вязкость:	Mineral-based or synthetic with lubricating properties at viscosities of 45-2000 SSU (6 to 420 cSt) cSt
Показатель эффективности фильтра:	ISO 4406 18/16/13, SAE Class 4
Вес:	0.25, 1, 3.5 lb, 0.11, 0.45, 1.6 kg
Момент затяжки при монтаже:	32-36, 51-55, 73 lb-ft, 43-49, 69-75, 99 Nm