阀座选项
Seat Options

　　在完全、圆形流道设计结构下，既可以提供金属阀座阀门，也可以提供弹性阀座阀门。可以提供关闭性能超过常用的TAPPI（美国纸浆与造纸工业技术协会）TIS 405-8标准和（美国阀门及配件制造商协会）MSS-SP81标准的整体金属阀座。
　　Both metal and resilient seated valves are offered in a full, round port design. The integral metal seated version is available with shutoff capability exceeding current TAPPI TIS 405-8 and MSS-SP81 standards.

弹性阀座阀门
Resilient Seated Valves

　　弹性阀座阀门适用于要求无滴漏密封关闭的应用场合。与采用O形环密封的阀门不同，美国DeZurik（德朱瑞克）刀闸阀配置专为刀闸阀应用设计的弹性阀座。这种弹性阀座材料粘接在不锈钢阀座环上。当阀门关闭时，闸板向阀座施加推力，而闸板压紧装置则将闸板保持在固定的位置上。当阀门开启时，闸板从阀座上移开，这时就需要操作间隙，以防止阀座损坏，并使操作更加容易。
　　Resilient seated valves are available for applications where drip-tight shutoff is required. Unlike valves which use an o-ring seal, DeZurik Knife Gates have a resilient seat designed especially for knife gate valve applications. The resilient seat material is bonded into a stainless steel seat ring. When the valve is closed, the gate is pushed against the seat and held in place by the gate jams. When the valve is open, the gate moves away from the seat, allowing operating clearance, which prevents seat damage and makes operation easy.
　　可以提供多种材质的弹性阀座。备选弹性阀座材质包括氯丁二烯（CR），丙烯腈丁二烯（NBR），氯磺化聚乙烯（CSM），氟橡胶（FKM），去白氯丁二烯（CRW）和三元乙丙橡胶（EPDM）。
　　A variety of resilient seat materials are available. Options include chloroprene (CR), acrylonitrile butadiene (NBR), chloro-sulfonyl-polyethylene (CSM), fluoro rubber (FKM), off-white chloroprene (CRW), and terpolymer of Ethylene, propylene and a diene (EPDM).

V形流道设计结构，用于可靠的节流控制
V-Orifice Design for Reliable Throttling Control

　　还可以提供金属阀座V形流道设计结构，用于浓稠浆（包括造纸原料）等流体的可靠节流控制应用场合。从开启到关闭的整个过程都保持不变的V形流道设计结构能够防止出现剪刀支撑或堵塞现象，确保最大限度的控制精度。
　　A metal-seated V-port design is also available for reliable throttling control of thick slurries including paper stock. The constant V-orifice is maintained from open to closed to prevent bridging or plugging and to ensure maximum control accuracy.