Documents: DPA-33-153-64
DPA-33-153-64 | Differential pressure switch | brass bellows | range 0-30 psid (0-2.1 bar) | max. pressure 300 psig (20.7 bar) | min. deadband 3.0 psid (.21 bar). | Dwyer
Differential pressure switch, brass bellows, range 0-30 psid (0-2.1 bar), max. pressure 300 psig (20.7 bar), min. deadband 3.0 psid (.21 bar).
Overview Details for DPA-33-153-64
Differential pressure switch | brass bellows | range 0-30 psid (0-2.1 bar) | max. pressure 300 psig (20.7 bar) | min. deadband 3.0 psid (.21 bar).
Series DP Double Bellows Differential Pressure Switch
Two opposing bellows combine maximum sensitivity and vibration resistance at a moderate cost in the Series DP Differential Pressure Switches. Both set and reset points are easily adjustable through non-interactive, externally accessible controls. Visible setpoint indicators simplify changes. SPDT snap action switch, 316 stainless steel or brass bellows, flanged steel housing. Rated pressures to 600 psig.
A wide variety of switches and circuit styles enables exactly the specific type of control function needed for any system. Mercury switches are a good choice for humid areas while snap switches are better able to resist vibration. Various operations possible include single adjustment - fixed deadband, double adjustment - adjustable deadband, manual reset (increasing or decreasing pressure) and two stage with each SPST or SPDT switch independently adjustable. Standard enclosure is NEMA-1 style. Optional weatherproof construction is for outdoor use and explosion-proof enclosure meets requirements for Class I, Groups C & D; Class II, Groups E, F & G.
California Residents: Click Here for Proposition 65 WARNING.
Product Applications
- Accurate switch triggers in high pressure applications
- Bellows switch design provides sensitivity to pressure changes but resists vibrationpreventing out of range switching
- External access to set and rest controls makes for easy adjustments
- Visible set point indicators simplify changes
Specifications
- Series
- DP Double Bellows Differential Pressure Switch
- Category/Type
- Pressure
- Type
- Differential Pressure
- Series
- DP Double Bellows Differential Pressure Switch
- Wetted Materials
- Brass on ranges 61; 62; 63 or 316SS on ranges 62E; 64E 65E.
- Temperature Limits
- -10 to 180°F (-23 to 82°C).
- Pressure Limit
- Maximum pressure of the operating range.
- Enclosure Rating
- General purpose; weatherproof or explosion-proof.
- Switch Type
- Mercury or snap switch; see Ordering Page.
- Electrical Rating
- See Ordering Page.
- Electrical Connection
- Screw terminal.
- Conduit Connection
- General purpose: 1/2" hole for conduit hub. Weatherproof: 1/2" conduit hub. Explosion-proof: 3/4" NPT female.
- Process Connection
- General purpose and weatherproof: 1/8" NPT female. Explosion-proof: 1/4" NPT male.
- Mounting Orientation
- Vertical.
- Set Point Adjustment
- Thumbscrew.
- Weight
- General purpose: 5 lb (2.3 kg). Weatherproof: 7 lb (3 kg). Explosion-proof: 25 lb (11 kg).
- Agency Approvals
- cULus.