(1) 軛架套管 –鋁青銅軛架套管*大程度減少操作扭矩。較大通徑的截止閥配置針形軸承類型的止推軸承。 (1) Yoke Sleeve– aluminum-bronze yoke sleeve minimizesoperating torque. Larger sizes have needle bearing type thrustbearings. (2) 閥桿 – 精密底面閥桿配置倒置T形頭,使得閥桿與楔體連接更加穩(wěn)定可靠。 (2) Stem – precision-ground stem has upset tee-head for reliable stem/wedge connection. (3) 壓力密封 –結(jié)構(gòu)簡單,分段扣環(huán),鍍銀低碳鋼墊圈,有助于拆卸和*大限度的閥帽密封。 (3) Pressure Seal– uncomplicated design has segmentedretaining ring and mild steel silver plated gasket to aiddisassembly and provide maximum bonnet seal. (4) 硬化的閥座表面 – 閥瓣和閥體地閥座表面都經(jīng)過表面硬化,*大限度延長使用壽命。 (4) Hardened SeatingSurfaces – both disc and bodyseating surfaces are hard faced for maximum service life. (5) 閥體 –流線形流道,*大限度減少壓降。對焊、縮喉管或法蘭連接端口幾種可供選擇的連接方式。 (5) Body – streamlined flow path minimizes pressure drop. Butt weld, venturi or flanged ends provide piping alternatives. | | (6) 執(zhí)行機構(gòu) –這些閥門可以配置電動、液動或氣動執(zhí)行機構(gòu)。DN350以下的標準配置是手動執(zhí)行機構(gòu)。 (6) Actuators– valves can be supplied with any type ofelectric, hydraulic or pneumatic actuator. Standard manualactuators are handwheels through 14". (7) 軛架 – 完全裝配式軛架通過抗震測試,易于維護和安裝執(zhí)行機構(gòu)。 (7) Yoke – fully fabricated yoke is seismically qualified while offering easy maintenance and actuator mounting. (8) 壓蓋 – 兩件式,自行調(diào)整壓蓋,不需要配置壓簧桿。便于維護的轉(zhuǎn)位式螺栓。 (8) Gland– two piece, self-aligning gland eliminatescocking. Swing out bolting facilitates maintenance. (9) 螺栓軛架 – 軛架是通過螺栓安裝在閥體上。 (9) Bolted Yoke– yoke is bolted to body. (10) 整體后座– 硬面,使用壽命*長。 (10) IntegralBackseat – hardfaced formaximum backseat life. (11) 閥瓣 – 全程閥體導(dǎo)向,是閥座更加適用于高壓應(yīng)用環(huán)境。 (11) Disc– fully body guided for perfect seating inhigh pressure services. |