API 602

(1) 阀盖连接 - 封装垫圈结构.
(1) Bonnet Joint – encapsulated gasket design.

(2) 阀座环 - 坚固耐用，螺纹。
(2) Seat Ring – heavy duty, threaded.

(3) 连接端口 - 根据连接管道的情况，可选择法兰或承插焊连接端口。
(3) End Connections – choice of flanged or socket ends for piping flexibility.

(4) 阀瓣 - 机加工阀座表面，配置阀座环，实现积极有效的关闭。
(4) Disc – machined seating surface is mated to seat ring for positive shutoff.

(5) 阀体 - 坚固耐用阀体，API 602标准壁厚，最大限度延长使用寿命。
(5) Body – heavy duty body with API 602 wall thickness for maximum service life.

API 600

(1) 阀盖连接 - ANSI压力等级不同，连接结构也有所不同。
(1) Bonnet Joint – joint design varies with ANSI class rating.

(2) 铰链销 - 精密机加工实心销钉，强度最高，使用寿命最长。
(2) Hinge Pin – precision machined solid pin for maximum strength and service life.

(3) 铰链 - 能够承受迅速关闭而产生的冲击负载，确保使用寿命更长和连续关闭。
(3) Hinge– designed to withstand the shock load of quick closing to insure longer life and continued shut-off.

(4) 阀座环 - 坚固耐用，全流道(全端口)密封焊接装配在阀体内。
(4) Seat Ring – heavy duty, full ported seal welded into body.

(5) 连接端口 - 根据连接管道的情况，可选择法兰光滑表面或环连接端口。
(5) End Connections – choice of flanged smooth finish or ring type for piping flexibility.

(6) 管塞 - 对于Philips规格的阀门是标准配置。
(6) Pipe Plug – standard feature for Phillips spec. valves.

(7) 阀瓣止回 - 在开启位置提供积极的止回功能；位置阀瓣在水平或垂直(流向朝上)管道的功能明显。
(7) Disc Stop – provides positive stop in open position; positions disc to effectively function in either horizontal or vertical (flow-up) pipe runs.

(8) 反旋转凸缘 - 凸缘允许阀瓣到阀座运动自如，同时防止阀瓣旋转和磨损。
(8) Anti-Rotation Lugs – lugs allow disc to seat freely and prevent disc spinning and wear.

(9) 阀瓣 - 坚固耐用的阀瓣通过螺栓和销钉固定在机加工阀座表面上，配置成对的阀座环，有利于积极有效的关闭。
(9) Disc – rugged disc is bolted and pinned to machined seating surface is mated to seat ring for positive shutoff.

(10) 阀体 - 全流道(全端口)，坚固耐用阀体，API 600标准壁厚，最大限度延长使用寿命。配置轮毂用于备选排泄阀。
(10) Body – full ported, heavy duty body with API 600 wall thickness for maximum service life. Provided with bosses for optional drains.