See catalog product page for full listing
Differential pressure switch | range 3-15 psid | approx. deadband @ min. set point 0.9 | approx. deadband @ max. set point 0.9.
Series 1950 Explosion-proof Differential Pressure Switch
Series 1950 Explosion-Proof Differential Pressure Switch combines the best features of the popular Dwyer® Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres (NEMA 7 & 9), Raintight NEMA 3 (IP54). Weatherproof features include a drain plug and O-ring seal in cover. Electrical connections are easily made by removing front cover. For convenience the set point adjustment screw is located on the outside of the housing. Twelve models offer set points from .03 to 20 in w.c. (0.0075 to 5 kPa) and from .5 to 50 psi (0.035 to 3.5 bar). The unit is very light and compact — about half the weight and bulk of other explosion-proof or weather-proof switches with separate enclosures.
CAUTION: For use only with air or compatible gases. Applications with hazardous atmospheres and a single positive pressure may require special venting.
Product Applications
- HVAC applications
- Process applications
- All-weather applications
- Explosion-proof and weatherproof housing provides device protection for outdoor use or harsh environment operation
- External set point screw provides easy access that simplifies making adjustments without opening or disassembling enclosure
- Easily accessible electrical connection simplifies the installation
- Series
- 1950 Explosion-proof Differential Pressure Switch
- Category/Type
- Pressure
- Type
- Differential Pressure
- Series
- 1950 Explosion-proof Differential Pressure Switch
- Service
- Air and non-combustible; compatible gases.
- Wetted Materials
- Consult factory.
- Temperature Limits
- -40 to 140°F (-40 to 60°C); 0 to 140°F (-17.8 to 60°C)for 1950P-8; 15; 25; and 50. -30 to 130°F (-34.4 to 54.4°C) for 1950-02.
- Pressure Limits
- Continuous: 1950’s – 45″ w.c. (0.11 bar); 1950P’s – 35 psi (2.41 bar); 1950P-50 only – 70 psi (4.83 bar). Surge: 1950’s – 10 psi (0.69 bar); 1950P’s – 50 psi (3.45 bar); 1950P-50 only – 90 psi (6.21 bar).
- Enclosure Rating
- NEMA 3 (IP54); NEMA 7 and 9.
- Switch Type
- Single-pole double-throw (SPDT).
- Electrical Rating
- 15 A @ 125; 250; 480 VAC; 60 Hz. Resistive 1/8 HP @ 125 VAC; 1/4 HP @ 250 VAC; 60 Hz.
- Electrical Connections
- 3 screw type; common; normally open and normally closed.
- Process Connections
- 1/8″ female NPT.
- Mounting Orientation
- Diaphragm in vertical position. Consult factory for other position orientations.
- Set Point Adjustment
- Screw type on top of housing.
- Weight
- 3.25 lb (1.5 kg); 1950-02 model 4.4 lb (2 kg).
- Agency Approvals
- CE; CSA; FM; UL.
Resources
^^Differential pressure switch, range 3-15 psid, approx. deadband @ min. set point 0.9, approx. deadband @ max. set point 0.9.^^
Prompt Shipping and Professional Packing
We offer a wide range of shipping options due to our long-running partnerships with UPS, FedEx and DHL. Our warehouse staff is highly trained to package your goods exactly according to the specifications that we supply. Prior to shipping your items will be thoroughly inspected and secured. We deliver to thousands of customers every day in a variety of countries. This shows our commitment to become the biggest online retailer on earth. Warehouses and distribution centres can be located in Europe as well as the USA.
It is important to note that orders with multiple items are subject to a processing period that is based to the item.
Prior to shipment, we will examine thoroughly the items you've purchased. The majority of orders will be delivered within 48 hours. Expected delivery times are between 3 and 7 days.
Returns
The inventory is always changing and we cannot fully manage it due to the fact that several parties are involved, including our factory and warehouse. Stock levels can fluctuate at any given time. It is possible that your order will be out of stock once the order is placed.
Our policy lasts thirty days. If you don't receive your product within the 30 days period, we are unable to offer a refund or an exchange.
To be eligible for a refund your item must be unused and in the same state that you received it in. The item must be in its original packaging.
Related products
Uncategorized
00068-0808GAP | 1/2 X 1/2 COMP X MALE ADAPT W/LARGE NUT | Midland Metal Mfg. Midland Metal Mfg.
Uncategorized
00061-10-9375 | 5/8" Compression Nut 15/16″ Hex | Midland Metal Mfg. Midland Metal Mfg.
