PQ340H, PQ340Y Hard Seal Eccentric Ball Valve

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, جزيئات صلبة صغيرة, اللب, coal ash, and petroleum gas.

اسم المنتج: Hard Seal Eccentric Ball Valve

نموذج المنتج: PQ340H, PQ340Y
القطر الاسمي: DN15～DN2200
بناء: كروية

الضغط الاسمي: 1.6ميجا باسكال ～ 32.0 ميجا باسكال
طريقة الاتصال: شفة

درجة الحرارة المطبقة: -20ºC～+180ºC～350ºC～550ºC
طريقة التشغيل: Manual, Worm Gear, كهربائي, هوائي

مادة جسم الصمام: الكربون الصلب, Cast Steel, WCB, الفولاذ المقاوم للصدأ
معيار التصنيع: غيغابايت (المعيار الوطني الصيني), من (المعيار الألماني), واجهة برمجة التطبيقات (المعيار الأمريكي), أنسي (المعيار الأمريكي)

الوسائط القابلة للتطبيق: ماء, زيت, Slurry, Sewage, الغاز, Liquid
الشركة المصنعة: شركة تشجيانغ كوزو للصمامات, المحدودة.

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. لذلك, 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, مما يجعلها مناسبة بشكل خاص للوسائط التي تحتوي على ألياف, جزيئات صلبة صغيرة, والطين.

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
Design and Manufacturing: GB12237-89
Flange Connection: GB/T17241.6998, GB/T9115 (Steel)
Structural Length: GB12221-89
Pressure Test: GB/T13927