Check Valve with Thermal Relief

Parker’s poppet style check valve with thermal relief allow flows up to 130 lpm (40 gpm) and pressure to 420 bar (6,000 psi), with thermal relieving in the reverse direction to protect the circuit from high hydraulic fluid thermal expansion pressures.

Полное описание продукта

Parker’s poppet style check valve with integrated thermal relief is capable of flows up to 130 lpm (40 gpm) and pressures up to 420 bar (6,000 psi). This unique thermal relief valve is designed to help protect the circuit from hydraulic fluid thermal expansion due to ambient or system temperature rise. Additionally, this valve will also act to relieve pressure spikes due to shocks seen by the hydraulic system. Circuit designers can also utilize a Parker supplied pilot spool to create a pilot operated check valve with the thermal relief functions.

Markets:
• Aerial
• Construction Equipment
• Forestry Equipment
• Material Handling Equipment
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• Poppet type for minimal leakage – less than 3 drops/min
• Hardened working parts for maximum durability
• Relief feature to give thermal and shock relief
• Single and dual pilot pistons available to create pilot to open check
• Compact design
• High tolerance for contamination
• All external parts zinc plated

Applications:
• Machinery in hot work environments
• Actuators that experience high levels sun exposure
• Implements that may be detached from main hydraulic circuit for long periods of time
• Applications or machinery that contains quick disconnect couplers

Additional Technical Insight:
Can also use a Parker supplied pilot spool to create a pilot operated check valve with the thermal relief functions. This valve’s operation allows free flow from port 1 to 2 and integral thermal relief function from port 2 to 1 to protect the circuit from thermal expansion of hydraulic fluid.

Характеристики

Расход:	40 Gal/min, 130 L/min
Давление открытия:	36, 102 psi, 2.5, 7 bar
Уставка сброса давления:	507, 1305, 3553, 4000 psi, 35, 90, 245, 276 bar
Материал уплотнения:	Nitrile, Fluorocarbon
Тип срабатывания:	Pressure Sensing
Конфигурация:	Poppet Type
Максимальный расход:	40 Gal/min, 130 L/min
Тип монтажа:	Screw in cartridge valve
Тип эксплуатации:	Check Valve w/Relief Feature
Максимальное расчетное давление на входе:	6000 psi, 420 bar
Максимальное рабочее давление:	6000 psi, 420 bar
Интенсивность утечек:	3 @ crack pressure drops/min
Размер полости:	C10-2
Функция:	Thermal Relief
Направление потока:	Bi-directional
Для типа жидкости:	Mineral-based or synthetic hydraulic fluids
Максимальная кинематическая вязкость:	45-2000 SSU (6 to 420 cSt) cSt
Показатель эффективности фильтра:	ISO 4406 18/16/13, SAE Class 4
Материал клапана:	All parts steel. All operating parts hardened steel
Момент затяжки при монтаже:	37 lb-ft, 50 Nm
Рабочая температура:	-30 to +250, -15 to +400 °F, -34 to +121, -26 to +204 °C
Максимальная рабочая температура:	+250, +400 °F, +121, +204 °C
Минимальная рабочая температура:	-30, -15 °F, -34, -26 °C
Вес:	0.29 lb, 0.13 kg
Материал корпуса:	N/A
Присоединительный размер:	N/A
Тип соединения:	N/A