Q347Y-16/25C 大口径メタルハードシール固定ボールバルブ
The Q347Y-16/25C large-diameter metal hard-seal fixed ball valve is a new generation of high-performance ball valve, 長距離パイプラインや一般産業用パイプラインに最適. その強さ, 安全性, and resistance to harsh environments have been specially considered in the design, and it is suitable for various corrosive and non-corrosive media.
The Q347Y-16/25C large-diameter metal hard-seal fixed ball valve is a new generation of high-performance ball valve, 長距離パイプラインや一般産業用パイプラインに最適. その強さ, 安全性, 過酷な環境に対する耐性が設計において特別に考慮されています。, さまざまな腐食性および非腐食性媒体に適しています。. Compared to floating ball valves, 動作中, the force generated by the upstream fluid pressure on the ball is entirely transferred to the bearing, ボールがバルブシートに向かって移動するのを防ぎます. したがって, the valve seat deformation is small, the sealing performance is stable, and the service life is long, making it suitable for high-pressure, 大口径用途. An advanced spring-loaded pre-seat assembly has self-tightening characteristics, 上流のシーリングを達成する. 各バルブには 2 つのシートがあります, 両方向のシール, thus eliminating flow direction restrictions and allowing for bidirectional operation. このバルブは、2 ピースおよび 3 ピースのボディ構造で利用可能です. 中間フランジはボルトで固定されています, シールにはステンレス鋼のリングに埋め込まれた強化 PTFE が使用されています。. A spring at the rear of the steel ring ensures the valve seat remains tightly against the ball, 封印を維持する. Both upper and lower valve stems are equipped with PTFE bearings to reduce friction and simplify operation. 小さなシャフトには下部に調整スラブがありません, ボールとシールリング間の適切な接触を確保します。. The full-bore structure ensures that the valve flow orifice matches the pipeline inner diameter, パイプラインの清掃を促進する.
製品名: Large Diameter Metal Hard Seal Fixed Ball Valve
製品型式: Q347Y-16/25C
呼び径: DN150～DN1200
構造: 固定ボール
呼び圧力: 1.6Mpa～42.0Mpa
接続方法: フランジ
適用温度: -29～450℃
作動方法: マニュアル, ウォームギア, 電気, 空気圧
バルブボディ材質: A105鍛造鋼, WCB 鋳鋼, ステンレス鋼 304, 316
製造基準: GB (中国国家規格), から (ドイツ規格), API (アメリカンスタンダード), ANSI (アメリカンスタンダード)
対象メディア: 水, 油, ガス, および特定の腐食性液体
メーカー: 浙江Kozoバルブ社, 株式会社.
Q347Y-16/25C Large Diameter Metal Hard Seal Fixed Ball Valve Product Features
1. Structural Features: The Q347Y-16/25C large-diameter metal hard-seal fixed ball valve is a ball valve with a fixed shaft, also known as a fixed ball valve. Fixed ball valves are mainly used for high-pressure, 大口径用途. Depending on the installation of the valve seat seal ring, fixed ball valves can have two structures: a valve seat with a front seal on the ball and a valve seat with a rear seal on the ball.
2. Integral Structure: Features full-channel operation, emergency sealing, and fire resistance.
3. Full Bore: The valve flow passage diameter matches the pipe’s inner diameter, パイプラインの清掃を促進する.
4. Blockage and Drainage: When the valve is closed, the upstream and downstream valve seats block the fluid flow, allowing accumulated material in the valve body cavity to drain. The drainage device has the following functions:
① Pre-checks for valve seat leakage or damage;
② Reduces valve contamination during media changes;
③ Allows replacement of the valve stem packing gland when the valve is fully open or fully closed under operating pressure. (As shown in Figure 5, the drain device is a drain plug.)
5. Automatic Pressure Relief: When the medium stagnating in the valve cavity experiences an abnormal temperature rise due to increased temperature, the safety valve installed on the valve seat or valve body can automatically relieve pressure.
6. 耐火構造: Utilizing a double seal, in the event of a fire, after the non-metallic valve seat is burned, the medium presses the sphere against the metal sealing surface on the valve body, preventing large-scale leakage, conforming to API 607 standards.
7. Emergency Sealing: When leakage occurs due to damage to the valve seat and valve stem seals, injecting sealing grease through the grease injection valve can provide an instantaneous emergency seal.
8. Extended Valve Stem: An extended valve stem is suitable for underground installations and cryogenic media. The extended dimension is determined according to requirements. Operating methods include manual, 空気圧, 電気, pneumatic-hydraulic linkage, and hydraulic operation.
