Direct Acting Cross-Over Relief Valves

Cross-Over/Cross-Port Relief cartridge valves provide pressure protection to hydraulic motors, cylinders and rotary actuators. 32 GPM, 5000 PSI, single or dual cartridge, in-line, manifold or motor mount. Higher flow and pressure solutions available.

Полное описание продукта

Dual crossover relief valves, often referred to as cross-port reliefs, provide pressure protection for double acting hydraulic actuators. They are typically used with equal area actuators including motors, double-rod cylinders and rotary actuators. Providing relief protection in both actuator lines helps to prevent damage that may occur from pressure spikes or deadhead conditions in both operating directions.
Parker’s XR101 and A04J2 common cavity cross-port relief valves provide actuator pressure protection in both directions with a single cartridge valve. They can be mounted in-line with standard line-bodies or integrated into custom manifolds. Combining two relieving functions into a single cartridge reduces components, space and cost.

Parker’s XRDH family of cross-port relief valves uses two differential area relief valves combined into a single body. Utilizing the two cartridge approach allows for higher flows with lower pressure drops and lower pressure rise. Standard catalog options are available for in-line plumbing or direct motor mount. The XRDH103 motor mount option locates the relieving functions directly on the motor ports which reduces pressure clip response time and also reduces plumbing as compared to in-line cross-port reliefs. XRDH103 is designed for use with Parker TB and TE low-speed-high-torque (LSHT) motors. Other motor mount options are available upon request.

Please contact us if you have any questions, or if you have a cross-port relief application that requires higher flow and pressure requirements.

• Compact space saving design
• Poppet-type construction for lower leakage
• High flow capability for the size of valve
• Minimal pressure variation with flow change
• Hardened working parts for maximum durability
• Adjustable and tamperproof versions available
• All external parts zinc plated

Common circuit applications include: Cross port relief, swing relief, port relief, system relief, pressure limiting, spike relief, motor braking, pressure limiter, steering and low limiting.

Характеристики

Расход:	32, 16, 20 Gal/min, 120, 60.6, 75, 60 L/min
Максимальное расчетное давление на входе:	3000, 5000, 3500, 5500 psi, 210, 350, 245, 380 bar
Максимальное давление в баке:	5000, 3500, 5500 psi, 350, 245, 380 bar
Уставка максимального давления:	3000, 5000, 2000, 1000 psi, 210, 350, 138, 69, 207, 345 bar
Интенсивность утечек:	10 @ 1450 PSI (100 BAR), 10 @ 75% Crack Pressure, 5 @ 75% Crack Pressure drops/min, 0.66 @ 1450 PSI (100 BAR), 0.66 @ 75% Crack Pressure, 0.33 @ 75% Crack Pressure cm3/min
Размер полости:	C10-2
Диапазон регулирования давления:	72-3000, 144-5000, 100-2000, 1500-3000, 100-1000, 500-2000, 500-3000, 500-5000 psi, 5-210, 10-350, 6.9-138, 103-207, 69.9-138, 6.9-69, 34.5-138, 34.5-207, 34.5-345 bar
Регулировочный механизм:	Screw Adjust, Knob Adjust, Tamper Resistant, Fixed
Стандартное давление посадки:	1450, 2900, 1000, 2500, 500, 1500 psi, 100, 200, 69, 172, 34.5, 103.5, 172.4 bar
Чувствительность регулирования давления:	362 per turn, 493 per turn, 333 per turn, 425 per turn, 143 per turn, 246 per turn, 375 per turn, 589 per turn psi, 25 per turn, 34 per turn, 23 per turn, 29 per turn, 9.9 per turn, 17 per turn, 25.8 per turn, 40.6 per turn bar
Давление закрытия:	80%, 85%
Давление открытия:	5, 20, 50, 65, 100 psi, 0.3, 1.4, 3.5, 4.5, 6.9 bar
Материал уплотнения:	Nitrile, Fluorocarbon, D-Ring (Standard)
Рабочая температура:	-30° to +250°, -15° to +400°, -50° to +270° °F, -34° to +121°, -26° to +204°, -45° to +132° °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:	0.64, 0.58, 4, 4.5 lb, 0.29, 0.26, 1.8, 2 kg