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Murphy PSB Direct Mount Pressure Switch
Murphy PSB压力开关

 

PSB 开关是用于关键压力点的直接安装开关。

它有一个限位触点,可用于激活警报、启动指示灯或关闭设备。 该仪器的结构与 Murphy 久经考验的 Swichgage ? 相同 仪器。 精密加工的黄铜安装板和端口捕获高质量、冲压铍铜隔膜。 单刀双掷 (SPDT) 快动开关直接从隔膜操作,以实现快速动作和正向开关。 跳闸点是工厂根据您的规格预设的。 外壳采用全天候密封,可防止湿气、灰尘等进入。带有螺钉端子连接的玻璃填充尼龙接线端子使 PSB 开关在工业发动机应用中具有真正的优势。 当不需要读数时,PSB 是理想的选择,但压力对操作效率至关重要。 旨在用于通用非机密区域。 Murphy PSB压力开关: - 堵头式,直接安装; - 压力点工厂设定为15psi,现场可在14-24psi范围内调节; - 适用于空气、发动机油或其他介质

Murphy PSB Direct Mount Pressure Switch

规格

外壳: 电镀钢。

压力连接: 1/8-27 NPT,黄铜。

隔膜: 铍铜成型(热处理)。

脉动阻尼器: 黄铜(可拆卸清洗)

接线端子: 三个#4-40 螺钉。

精度: 跳闸点:满量程的 ±3%。

开关复位差 :满量程的±7%。

重复性: 满量程的±1%。

触点额定值: SPDT 3 A @ 30 VDC 感应。

最大压力 :参见跳闸点图表

温度范围:

  • 环境 = -40°F (-40°C) 到 150°F (66°C)
  • 过程 = -40°F (-40°C) 到 250°F (121°C)

压力范围: 指定为 15-400 psi (0.21 kPA-2.76 MPa) [1.03-27.58 bar]。

触点: 在上升或下降的压力下运行(指定)。

运输重量: 8 盎司。 (0.25 公斤)。

运输尺寸: 3 x 2-3/4 x 2-3/4 英寸(76 x 70 x 70 毫米)。

 

可用范围 psi (kPa/MPa) [bar] 出厂设置* psi (kPa) [bar] 下降 最大压力 psi (kPa) [bar]
0-15 (0-103) [0-1.03] 3 (21) [.21] 30 (207) [2.07]
0-30 (0-207) [0-2.07] 7 (48) [.48] 60 (414) [4.14]
0-50 (0-345) [0-3.45] 10 (69) [.69] 100 (0-689) [0-6.89]
0-75 (0-517) [0-5.17] 15 (103) [1.03] 150 (0-1.03) [0-10.34]
0-100 (0-689) [0-6.89] 20 (138) [1.38] 200 (0-1.38) [0-13.79]
0-150 (0-1.03) [0-10.34] 30 (207) [2.07] 300 (0-2.07) [0-20.70]
0-200 (0-1.38) [0-13.79] 50 (345) [3.45] 400 (0-2.76) [0-27.60]
0-300 (0-2.07) [0-20.70] 75 (517) [5.17] 500 (3.45) [34.50]
0-400 (0-2.76) [0-27.60] 150 (1.03) [10.34] 500 (3.45) [34.50]
*如果未指定开关跳闸点,将使用这些点。

 

Features:

  • Limit switch for critical pressure
  • Operate alarms or shutdown equipment
  • SPDT snap-acting switch
  • Fits most engine applications
PSB-75-F15 (05704427): Direct Mount Pressure Switch

PSB-100-F20 (05704428): Direct Mount Pressure Switch PSB-100-F30 (05704429): Direct Mount Pressure Switch

产品应用Applications

  • Engine lubrication
  • Water pumps
  • Compressors
  • Oil field systems
  • Irrigation systems
  • Construction equipment
  • Light-duty mobile equipment
  • Marine engines
  • Generators features
  • Fits all engine applications
  • SPDT snap-switch
  • Activates indicator lights, alarms, or shut down equipment
  • Time-proven SWICHGAGE? construction
  • Easy wiring terminal block
  • Steel housing specially coated to resist corrosion
  • Factory preset to your specifications

 

Specifications

Housing: Plated steel.
Pressure Connection: 1/8-27 NPT, Brass.
Diaphragm: Formed beryllium copper (heat treated).
Pulsation Dampener: Brass (it is removable for cleaning)
Terminal Block: Three #4-40 screws.
Accuracy: Trip point: ±3% of full scale. Switch reset differential: ±7% of full scale.
Repeatability: ±1% of full scale.
Contact Rating: SPDT 3 A @ 30 VDC inductive.

Temperature Range:
  • Ambient: -40°F (-40°C) thru 150°F (66°C).
  • Process: -40°F (-40°C) thru 250°F (121°C).

Pressure Range: Specify from 0-400 psi (0- 2.76 MPa) [0- 27.58 bar].
Contact: Operates on rising or falling pressure (specify).
Shipping Weight: 8 oz. (0.25 kgs).
Shipping Dimensions: 3 x 2-3/4 x 2-3/4 in. (76 x 70 x 70 mm).

 

Trip Point Chart:

Ranges available psi (kPa/MPa) [bar] Factory setting* psi (kPa) [bar] Falling Maximum pressure psi (kPa) [bar]
0-15 (0-103) [0-1.03] 3 (21) [.21] 30 (207) [2.07]
0-30 (0-207) [0-2.07] 7 (48) [.48] 60 (414) [4.14]
0-50 (0-345) [0-3.45] 10 (69) [.69] 100 (0-689) [0-6.89]
0-75 (0-517) [0-5.17] 15 (103) [1.03] 150 (0-1.03) [0-10.34]
0-100 (0-689) [0-6.89] 20 (138) [1.38] 200 (0-1.38) [0-13.79]
0-150 (0-1.03) [0-10.34] 30 (207) [2.07] 300 (0-2.07) [0-20.70]
0-200 (0-1.38) [0-13.79] 50 (345) [3.45] 400 (0-2.76) [0-27.60]
0-300 (0-2.07) [0-20.70] 75 (517) [5.17] 500 (3.45) [34.50]
0-400 (0-2.76) [0-27.60] 150 (1.03) [10.34] 500 (3.45) [34.50]
*These points will be used if switch trip point is not specified.

 


PSB-75-F15 (05704427): Direct Mount Pressure Switch
PSB-100-F20 (05704428): Direct Mount Pressure Switch
PSB-100-F30 (05704429): Direct Mount Pressure Switch


Dimensions:



Wiring:

 

The PSB switch is a direct mount switch for critical pressure points. It has one limit contact that can be used to activate an alarm, actuate indicator lights or shutdown equipment.PSB switch is a direct-mount switch for critical pressure points.It has one limit contact that can be used to activate an alarm, actuate indicator lights or shutdown equipment. The construction of this instrument is the same as Murphy's time-proven Swichgage? instrument. A precision machined brass mounting plate and port captures a high-quality, stamped beryllium copper diaphragm. The single-pole, double-throw (SPDT) snap-switch is operated directly from the diaphragm for quick acting and positive switching. Trip point is factory preset according to your specifications. Housing is weather sealed to prevent entry of moisture, dust, etc. A glass-filled nylon terminal block with screw terminal connections gives the PSB switch a real advantage in industrial engine applications. The PSB is ideal when reading is not desired, but pressure is critical to operational efficiency. Intended for use in general purpose non-classified areas.

 

 

- 产品资料下载

Direct Mount Pressure Switch Model PSB
Sales Bulletin/Installation Instructions (00-02-0031)

 



Murphy Instrument Distributor

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