PQ340H, PQ340Y 하드 씰 편심 볼 밸브
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, small solid particles, pulp, coal ash, and petroleum gas.
제품명: Hard Seal Eccentric Ball Valve
제품 모델: PQ340H, PQ340Y
공칭 직경: DN15～DN2200
구조: 구의
공칭 압력: 1.6Mpa～32.0Mpa
연결 방법: 플랜지
적용온도: -20ºC～+180ºC～350ºC～550ºC
작동 방식: Manual, Worm Gear, Electric, 영적인
밸브 본체 재질: Carbon Steel, 주강, WCB, 스테인레스 스틸
제조표준: GB (중국 국가 표준), 에서 (독일 표준), API (미국 표준), 안시 (미국 표준)
적용 가능한 미디어: 물, 기름, Slurry, Sewage, 가스, 액체
제조업체: 절강고조밸브(Zhejiang Kozo Valve Co.), 주식회사.
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. Therefore, 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, making it particularly suitable for media containing fibers, small solid particles, and slurries.
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
설계 및 제조: GB12237-89
Flange Connection: GB/T17241.6998, GB/T9115 (Steel)
구조적 길이: GB12221-89
Pressure Test: GB/T13927
Performance Parameters
공칭 압력 (MPa): 0.6 1.0 1.6 2.5 4.0
공칭 직경 (mm): 40-600 40-600 40-600 40-600 40-600
Sealing Test Pressure (MPa): 0.66 1.1 1.76 2.75 4.4
Shell Test Pressure (MPa): 0.9 1.5 2.4 3.75 6.0
적용온도 (°C): -29~300, -29～425, -29～540
적용 가능한 미디어: Clean water, seawater, sewage, acids, alkalis, liquids, slurries, 증기, fuel gas, oils
Drive Method: Manual, Electric, 영적인
연결 유형: Flange connection, Wafer connection
Installation Method: Vertical installation, Horizontal installation
