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Dwyer L4系列 FLOTECT®浮球液位开关
Dwyer L4系列 FLOTECT®浮球液位开关
磁控开关，防漏体，防爆。
从棒材中加工的防漏阀体。
浮子的选择取决于最大压力和比重。
耐候性，设计以满足NEMA 4。
防爆作用。
直接和容易地安装到带有螺纹分支连接或法兰的油箱中。
电气组件可以很容易地更换，而不需要从安装中拆下装置，这样就不需要关闭该过程。
水平安装或可选的顶部安装垂直安装。
独特的磁驱动开关设计提供了优越的性能。
没有风箱、弹簧或密封失效。
自由摆动的浮子吸引固体金属开关体内的磁铁，通过简单的杠杆臂驱动快速开关。
浮子臂铰链设计限制臂角度防止垂直悬挂。
介质:与湿材料相容的液体.
接液材质:浮子和棒：316 SS；阀体：黄铜或316 SS标准；磁性保持者：430 SS标准，316 SS或镍可选。
温度范围:4~275°F (-20~135°C) 标准, MT高温型400°F (205°C) [MT选型没有UL, CSA, ATEX or IECEx]. ATEX和IECEx选型: 环境温度-4~163°F (-20~73°C); 过程温度 -4~163°F (-20~73°C).
耐压:黄铜材质1000 psig (69 bar), 316 SS材质 2000 psig (138 bar). 标准浮子100 psig (6.9 bar). 其它浮子见选型.
封装:全天候防护和防爆. **Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 0344 EX II 2 G Ex d IIB T6 Gb -20°C≤Tamb≤73°C. -20°C≤Process Temp≤73°C. EC-Type Certificate No.: KEMA 03 ATEX 2383. ATEX Standards: EN60079-0: 2009; EN60079-1: 2007. IECEx Certified: For Ex d IIB T6 Gb -20°C≤Tamb≤73°C. -20°C≤Process Temp≤73°C. IECEx Certificate of Conformity: IECEx DEK 11.0071. IECEx Standards: IEC 60079-0: 2007; IEC 60079-1: 2007.
开关类型:SPDT, DPDT可选.
电气额定:UL, FM, ATEX and IECEx models: 10 A @ 125/250 VAC (V~). CSA models: 5 A @ 125/250 VAC (V~); 5 A res., 3 A ind. @ 30 VDC. MV option: 1 A @ 125 VAC (V~); 1 A res., .5 A ind. @ 30 VDC. MT option: 5 A @ 125/250 VAC (V~). [MT and MV option not UL, CSA, FM, ATEX or IECEx]
电气连接:UL和 CSA 型: 16 AWG, 6" (152 mm) 长. ATEX 和IECEx型: 端子盒.
出线口:3/4" (19.05 mm) NPT内螺纹 标准或者 M25的-BSPT选项.
过程连接:1-1/2" (38.10 mm)NPT外螺纹或者1-1/2" (38.10 mm) BSPT外螺纹标准, 2-1/2" (63.50 mm) NPT外螺纹或者 2-1/2" (63.50 mm) BSPT外螺纹 标准可选浮球.
安装方向:标准型为水平安装, 可选垂直安装.
死区:3/4" (19 mm) 标准浮球.
比重:标准浮球不小于0.7. 其它浮球见选型表.
重量:4 lb 9 oz (2.07 kg).
认证:ATEX, CE, CSA, FM, IECEx, UL**.
**没有封装的 (-NH) 没有认证.
选型表
| EXAMPLE | L4 | SS-D-TOP | 50 | B1HC | Series L4-SS-D-TOP-50-B1HC Flotect® Float Switch, 316 SS body, DPDT, top mounted housing, 50 psi - 2-1/2" spherical float, with 2" hex type carbon steel bushing. |
| SERIES | L4 | Flotect® Float Switch | |||
| 1ST SET OF OPTIONS (Select any or all) | SS D TOP | 316SS Body (430 Magnet Keeper) DPDT Top Mounted Housing | |||
| 2ND SET OF OPTIONS | 50 150 300 316 AT BSPT CI EPOXY IEC MT MV NH NI ST TBC TRD TRI W | 50 psi, 2-1/2" Spherical Float 150 psi, 2-1/2" Spherical Float 300 psi, 2-1/2" Spherical Float All 316SS Wetted Parts ATEX Approval BSPT Process Connection, M25 Conduit Cast Iron Housing Epoxy Coated Housing IECEX Approval High Temperature Gold Contacts No Housing Nickel 200 Vane/Vane Block Stainless Steel Tag Terminal Block Connection Time Delay Relay, Decreasing Flow Time Delay Relay, Increasing Flow Weld SST Threaded Flange or Bushing to SST Body | |||
| FLANGES/BUSHINGS | B1FC B1HB B1HC B1H4 B1HS B2FC B2F4 B2HC B2H4 B2HS B2HB B4HS F2C1 F2C3 F2C6 F2C9 F3C1 F3C3 F2S1 F2S3 F2S6 F3S1 F3S3 F4C1 F4C3 F4S1 F4S3 | 2" Flush Type Carbon Steel Bushing 2" Hex Type Brass Bushing 2" Hex Type Carbon Steel Bushing 2" Hex Type 304SS Bushing 2" Hex Type 316SS Bushing 2-1/2" Flush Type Carbon Steel Bushing 2-1/2" Flush Type 304SS Bushing 2-1/2" Hex Type Carbon Steel Bushing 2-1/2" Hex Type 304SS Bushing 2-1/2" Hex Type 316SS Bushing 2-1/2" Hex Type Brass Bushing 4" Hex Type 316SS Bushing 2" Carbon Steel 150# Flange 2" Carbon Steel 300# Flange 2" Carbon Steel 600# Flange 2" Carbon Steel 900# Flange 3" Carbon Steel 150# Flange 3" Carbon Steel 300# Flange 2" 316SS 150# Flange 2" 316SS 300# Flange 2" 316SS 600# Flange 3" 316SS 150# Flange 3" 316SS 300# Flange 4" Carbon Steel 150# Flange 4" Carbon Steel 300# Flange 4" 316SS 150# Flange 4" 316SS 300# Flange |
