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Многоходовой клапан LFA12 от Китайских поставщиков и завода для экскаваторов и строительной техники
Technical Specifications
| Обзор | |
| Конструкция | Разъемная деталь |
| Способ монтажа | См. чертеж |
| Соединение | Резьба |
| Диаметр мм | 12 |
| Гидравлика | |
| Номинальное давление бар | 250 |
| Максимальное давление бар для портов A и B | 280 |
| Максимальное давление на портах a и b бар | 30 |
| Максимально допустимое обратное давление бар | 15 |
| Давление первичного предохранительного клапана бар | 100~250 |
| Давление вторичного предохранительного клапана бар | 150~315 |
| Утечка (при 100 бар, 36 м²/с, 50°C) мл/мин | 30 |
| Расход л/мин | 100 (макс. за штуку) |
| Диапазон температур гидравлического масла ℃ | -20~+100 |
| Диапазон вязкости м²/с | 10~460 |
| Допустимый уровень загрязнения масла | -/19/16 (ISO4406:1999) |
| Оборудование | |
| Общий вес кг | Около 35 |
Operating Principle
Frequently Asked Questions (FAQ)
Q
What is the nominal operating pressure of this load-sensing valve?
The nominal operating pressure of this valve is 250 bar. The maximum pressure at ports A and B can reach up to 280 bar, ensuring reliable performance in high-pressure hydraulic systems.
Q
What type of connection does this valve use?
This valve uses a threaded connection (Резьба) with a diameter of 12 mm. It is designed as a split/separable component for ease of installation and maintenance.
Q
What is the recommended hydraulic oil temperature range?
The valve is designed to operate with hydraulic oil temperatures ranging from -20°C to +100°C. The recommended oil viscosity range is 10 to 460 m²/s for optimal performance.
Q
What is the maximum flow rate supported by this valve?
The maximum flow rate is 100 l/min per unit. This makes the valve suitable for medium-to-high flow hydraulic applications requiring precise load-sensing control.
Q
What oil contamination level is acceptable for this valve?
The acceptable oil contamination level is -/19/16 according to ISO 4406:1999. Maintaining this cleanliness level helps extend the service life of the valve and ensures consistent hydraulic performance.
Q
What are the primary and secondary relief valve pressure settings?
The primary relief valve pressure can be set between 100 and 250 bar, while the secondary relief valve pressure range is 150 to 315 bar. These adjustable settings allow the valve to be configured for a wide range of hydraulic circuit requirements.