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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 法蘭外室式液位開關(guān)為比重液體而設(shè)計(jì)，它性能優(yōu)異，特別能適用于低到0.40比重的液體。這款液位開關(guān)為法蘭外室是，可移除的不銹鋼浮子，便于安裝和檢修維護(hù)。它在100°F (38°C)溫度下耐壓1000 psig (69 bar) ，在 475°F (246°C)溫度下耐壓850 psig (59 bar)。標(biāo)準(zhǔn)配置為1" NPT螺紋接頭?？蛇x焊接或法蘭連接方式。還可選單刀單擲，單刀雙擲和雙刀雙擲，全密封快開開關(guān)或水銀開關(guān)。防護(hù)有普通型，全天候型，和防爆型。

215/217/218系列 法蘭外室式液位開關(guān)為可調(diào)回差的法蘭連接式外室側(cè)裝式。有四種操作方式： 1. 單級可調(diào)回差，用于水泵控制， 2. 雙極上位固定，低位可調(diào)用于水泵控制和高位報(bào)警，3.下位固定，上位可調(diào)用于水泵控制，低位報(bào)警，4. 高低位固定式用于高低位報(bào)警?？蛇x液位范圍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.

獨(dú)特的設(shè)計(jì)， 移除四個(gè)螺栓就能很容易檢查浮子和腔體的清潔狀況和磨損狀態(tài)，而無需拆卸管線或電路接線。102系列可耐壓 400 psi (28 bar)和耐溫425華氏度（218攝氏度），液體*小比重為0.6。1102系列耐溫和耐壓相同，可監(jiān)測比重低至0.4的液體。它們都帶有不銹鋼浮子，可選鑄鐵，鑄鋼，或316鑄鋼腔體。這款液位開關(guān)常用于壓力或真空的應(yīng)用場合，特別是經(jīng)常需要維護(hù)檢修的地方?？蛇x擇全密封的快開開關(guān)或水銀開關(guān)，以及各種開關(guān)類型的組合：單刀單擲，單刀雙擲，雙刀雙擲，雙刀單擲。 還可選低電流，低電壓，高電流，高溫等應(yīng)用選項(xiàng)。外殼防護(hù)也有普通型，全天候型，防爆型。 102還帶有三個(gè)1" NPT連接口用于上下側(cè)面安裝，或上側(cè)下底安裝。 當(dāng)用于上下側(cè)面安裝時(shí)，底部的1" NPT連接口用作排放口。