Dwyer pressure switch 1910-0

Dwyer pressure switch 1910-0

Dwyer’s universal 1910 series differential pressure switch combines advanced design and precise construction, making it suitable for applications where large-sized and expensive micro differential pressure switches can be used.

It is designed for air conditioning engineering applications and is also suitable for many applications in fluid engineering, refrigeration industry, furnaces, and drying.

Suitable for air and non combustible gases, the 1900 series switch can be set from 0.07 to 20 ˝ (1.8 to 508 mm) inches of water column.

The set point adjustment adopts rotation adjustment inside the casing. Internally installed to prevent accidental movement. UL, CE, CSA, and FM certifications.

Technical indicators:

Media: Air and non flammable, compatible with gases

Material: Please consult the manufacturer

Temperature range: -30 to 180 ° F (-34 to 82.2 ° C)

Pressure range: Continuous pressure 45 ˝ w. C. (11.2 kPa), impact pressure 10 psig (68.95 kPa)

Switch type: Single Pole Double Throw (SPDT)

Repeatability: ± 3%

Electrical indicators: 15 A @ 120-480 VAC, 60 Hz Resistive 1/8 HP @ 125VAC, 1/4 HP @ 250 VAC, 60 Hz Derate to 10 A for operation at high cycle rates

Electrical interface: 3 rotating terminals, general, normally open, normally closed

Connection: 1/8 ˝ NPT. Internal thread

Installation positioning: The diaphragm is used in the vertical direction. For other positioning, please consult the manufacturer

Set point adjustment: screw adjustment inside the casing

Weight: 1lb, 4.5 oz (581 g)

Institutional certification: CE, UL, CSA, FM

全天候外壳可选： – 16 ga钢制外壳采用垫片密封（NEMA 4，IP66），适用于潮湿或油性环境。可承受200小时的盐雾测试。重量。5磅（2.3千克）。开关由工厂安装。将基本型号更改为1911并添加-WP后缀。例如：1911-1-WP。
防爆外壳可选： – 带有黄铜外层的铸铁底座。防暴等级 Class I, Group D; Class II, Groups E, F, G. (重 7 lbs).开关必须在工厂安装。
将基本型号更改为1911并添加-EXPL后缀。例如：1911-1-EXPL。
手动复位型号1900-MR： – 包括特殊的弹簧开关，在压力增加的情况下。当压力降至设定值以下时，必须手动复位。
将基本型号更改为1900，并添加后缀MR。例如:1900 – 10 -MR。仅限-1、-5、-10或-20范围。没有 UL, CSA或FM证书。注意:手动复位(MR)选项仅适用于单一正压应用。