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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 Instruments

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Overview

Details for DPA-33-153-64

Here is the updated product description for SKU DPA-33-153-64: Dwyer Instruments DPA-33-153-64: 0-30# Differential Pressure Switch (Mercury) The Dwyer Instruments DPA-33-153-64 is a differential pressure switch designed to measure and control differential air pressure. It features a pressure range of 0 to 30 inches of water column, and a maximum pressure of 30 psi. The switch is constructed with a die-cast aluminum housing and a stainless steel diaphragm, making it durable and corrosion-resistant. It also has a mercury switch mechanism for reliable operation. Key Features: - Pressure range: 0 to 30 inches of water column - Maximum pressure: 30 psi - Die-cast aluminum housing - Stainless steel diaphragm - Mercury switch mechanism Benefits: - Accurate and reliable pressure measurement - Durable and corrosion-resistant construction - Easy to install and maintain Applications: - HVAC systems - Industrial air handling systems - Clean rooms - Medical facilities Shop now at our HVAC supply store for the best prices and fast shipping on all your industrial equipment needs!

Series DP Double Bellows Differential Pressure Switch

Visible Setpoints, Adjustable or Fixed Deadband . . . High Pressure Ranges

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.

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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
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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.