PQ340H, PQ340Y Эксцентриковый шаровой клапан с жестким уплотнением
The PQ340H/Y hard-seal eccentric ball valve utilizes an eccentric valve body, eccentric ball, and valve seat. As the valve stem rotates, it automatically centers itself along a common trajectory, tightening further during closing to achieve a perfect seal. The ball and seat are completely separated, eliminating wear on the sealing ring and overcoming the problem of constant wear between the sealing surface and the ball in traditional ball valves. Non-metallic elastic material is embedded in the metal seat, providing excellent protection for the seat’s metal surface. This product is particularly suitable for media in the steel industry, aluminum industry, fiber, мелкие твердые частицы, мякоть, coal ash, and petroleum gas.
Название продукта: Hard Seal Eccentric Ball Valve
Модель продукта: PQ340H, PQ340Y
Номинальный диаметр: DN15～DN2200
Структура: сферический
Номинальное давление: 1.6МПа～32,0 МПа
Способ подключения: Фланец
Применимая температура: -20ºC～+180ºC～350ºC～550ºC
Метод срабатывания: Руководство, Worm Gear, Electric, Pneumatic
Материал корпуса клапана: Углеродистая сталь, Литая сталь, WCB, Нержавеющая сталь
Производственный стандарт: ГБ (Китайский национальный стандарт), ОТ (Немецкий стандарт), API (Американский стандарт), АНСИ (Американский стандарт)
Применимые носители: Вода, Масло, Slurry, Sewage, Газ, Жидкость
Производитель: Чжэцзянская компания Kozo Valve Co., ООО.
Structural Features
1. The valve seat features an external step that mates with the internal step of the valve body, preventing the ball from jamming or disengaging from the seat.
2. Utilizing an eccentric valve body, eccentric ball, and valve seat, the valve stem automatically centers itself along a common trajectory during rotation. During closing, the valve tightens further, achieving a perfect seal. Поэтому, the eccentric hemispherical valve offers reliable and safe sealing performance. During valve opening and closing, the ball completely disengages from the seat, eliminating wear on the sealing surface and overcoming the problem of constant wear between the valve seat and ball sealing surfaces in traditional ball valves.
3. Non-metallic elastic material is incorporated into the metal seat, providing excellent protection for the metal sealing surface.
4. The hemispherical design creates a shearing effect between the ball and seat, что делает его особенно подходящим для материалов, содержащих волокна, мелкие твердые частицы, и суспензии.
5. When fully open, it offers high flow capacity, low pressure loss, and prevents media from accumulating in the valve body cavity.
6. This product has precise adjustment and reliable positioning functions, the flow characteristics are approximately percentage, the adjustable range is large, and the maximum adjustment ratio is 100:1.
Execution Standards
Проектирование и производство: GB12237-89
Flange Connection: GB/T17241.6998, GB/T9115 (Сталь)
Структурная длина: GB12221-89
Pressure Test: ГБ/T13927
Параметры производительности
Номинальное давление (МПа): 0.6 1.0 1.6 2.5 4.0
Номинальный диаметр (мм): 40-600 40-600 40-600 40-600 40-600
Sealing Test Pressure (МПа): 0.66 1.1 1.76 2.75 4.4
Shell Test Pressure (МПа): 0.9 1.5 2.4 3.75 6.0
Применимая температура (°С): -29～300, -29～425, -29～540
Применимые носители: Clean water, seawater, сточные воды, acids, alkalis, жидкости, суспензии, пар, fuel gas, масла
Метод привода: Руководство, Electric, Pneumatic
Тип подключения: Фланцевое соединение, Wafer connection
Installation Method: Vertical installation, Horizontal installation
