新型LS-3 MICRO：Gems LS-3系列产品的**成员是LS-3 Micro。这是目前*小的LS-3系列开关，非常适合用于饮用水、医疗设备和其他紧凑型应用，如打印机。Gems LS-3 Micro浮子能够用于轻于水的液体。这些液位开关还采用FDA认证材料制造，使用范围更广。· 固态发泡聚丙烯浮子提供了更窄的设计 - 宽度仅3/4"（19 mm），适合受限空间应用· 聚砜浮子：用于水基液体，不适用于石油和化学品· 聚丙烯浮子（空心）：具有广泛的化学兼容性的低比重浮子。· 聚丙烯浮子（实心）：带聚丙烯杆和浮子，具有广泛的化学兼容性。· Buna N浮子：非常适合用于石油和燃料· ALL-PVDF：用于超纯度应用的耐腐蚀PVDF浮子和杆。
A removeable stainless steel float enclosed in a flanged carbon steel chamber is featured in the durable, field proven 1241 series. External side mount series includes 1" NPT process connections as standard or 1" flanges as options. Pressure and temperature limits are 1440 psi (99 bar) at 100°F (38°C) and 1275 psi (87.9 bar) at 475°F (246°C). Minimum specific gravity for all models is 0.60. The models shown can be ordered with a variety of electrical arrangements including SPST, SPDT, or DPDT circuits in hermetically sealed snap action or mercury contacts. Switches can be ordered open on level rise or fall. Single pole double throw electrically independent circuits are available as well as low current or high DC current applications. A full range of enclosures are offered including general purpose NEMA-1; weatherproof NEMA-4X; (explosion-proof) and (explosion-proof - vapor-proof) groups B, C, D, E, F, G, NEMA-7-9.
Long life and reliable operation is inherent in the design of the 205 series. The heavy duty welded carbon steel chamber provides a control to operate up to 1250 psi (86 bar) and process temperature up to 650°F (343°C), 400°F (205°C) at the electrical head assembly. The use of an external magnet reduces the possibility of magnetic particle build up inside the armature tube and subsequent loss of operation as may occur with the internal magnet repulsion design. Choice of construction provides equipment suitable for specific gravity as low as (0.75). Electrical requirements are met by use of hermetically sealed snap action or mercury switches in a variety of actions including SPST, SPDT, DPDT and DPST arrangements. Optional circuits are available for low current/voltage DC; high current DC; or high temperature applications. Check the current chart for the switch best suited for your application. Standard process connections are combination 1" NPT and 1" socket weld hubs. Flanged connections are offered as an option. Contact factory for ANSI B31.1.
1221/1223/1224系列 法兰外室式液位开关为比重液体而设计，它性能优异，特别能适用于低到0.40比重的液体。这款液位开关为法兰外室是，可移除的不锈钢浮子，便于安装和检修维护。它在100°F (38°C)温度下耐压1000 psig (69 bar) ，在 475°F (246°C)温度下耐压850 psig (59 bar)。标准配置为1" NPT螺纹接头。可选焊接或法兰连接方式。还可选单刀单掷，单刀双掷和双刀双掷，全密封快开开关或水银开关。防护有普通型，全天候型，和防爆型。
215/217/218系列 法兰外室式液位开关为可调回差的法兰连接式外室侧装式。有四种操作方式： 1. 单级可调回差，用于水泵控制， 2. 双极上位固定，低位可调用于水泵控制和高位报警，3.下位固定，上位可调用于水泵控制，低位报警，4. 高低位固定式用于高低位报警。可选液位范围12"，24"，36"或48"。
Low minimum specific gravity of 0.40 and rugged flanged chamber for inspection purposes helps insure superior long term performance. Control can be used at maximum process pressure of 450 psig (31 bar) at 100°F (38°C), and 300 psig (21 bar) at 500°F (260°C). Standard 1" NPT connections are provided for mounting. 19 socket weld hubs or 1" flanges are available as options. Hermetically sealed snap switch or mercury switches are provided in a variety of circuit configurations such as (SPST) (SPDT) or (DPDT). High or low DC applications can also be accommodated. General purpose, (weatherproof) (explosion-proof) (explosion-proof – vapor proof) enclosures are provided.
Heavy duty flanged chamber features removable float for ease of inspection and maintenance. The 221 Series also provides 1" NPT for standard external mounting. Socket weld hubs or flanges are optional. Rugged C1-75 construction is suitable for operation at 1000 psi (69 bar) at 100°F (38°C), and 850 psig (59 bar) at 475°F (246°C) with a minimum specific gravity of 0.75. C1-60 construction is suitable for operation at 600 psig (41 bar) at 100°F (38°C), and 550 psig (38 bar) at 475°F (246°C) with a minimum specific gravity of 0.60. Models featured can be ordered with various circuits including SPST, SPDT, or DPDT with hermetically sealed snap action or mercury contacts. A full range of enclosures are available including general purpose, (weatherproof) (explosion-proof) (explosion-proof – vapor proof).
A removable stainless steel float enclosed in a flanged carbon steel chamber is featured in the durable, field proven 211 Series. External side mount series includes 1" NPT process connections as standard, or with socket weld hubs; or, 1" flanges as options. Pressure and temperature limits are 450 psi (31 bar) at 100°F (38°C), and 300 psi (21 bar) at 500°F (260°C). Minimum specific gravity for all models is 0.60. The models shown can be ordered with a variety of electrical arrangements including SPST, SPDT, or DPDT circuits in hermetically sealed snap action or mercury contacts. Switches can be ordered open on level rise or fall. Single pole double throw electrically independent circuits are available as well as low current or high DC current applications. A full range of enclosures are offered including general purpose NEMA 1; weatherproof NEMA 4X; (explosion-proof) and (explosion-proof/vapor-proof) Groups B, C, D, E, F, G, NEMA 7, 9.