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Series DP Double Bellows Differential Pressure Switch
Brand: Dwyer Instruments, LLCTwo 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.
Features- Bellows switch design provides sensitivity to pressure changes but resists vibration preventing out of range switching
- External access to set and rest controls makes for easy adjustments
- Visible set point indicators simplify changes
Displaying prices & availability for Ohio, United States in CAD. Change location.
Models matching criteria: 36
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 80 (bar: 0 to 5.516, kPa: 0 to 551.6)
- Enclosure - Explosion-Proof Enclosure
100+ In Stock
$137.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 80 (bar: 0 to 5.516, kPa: 0 to 551.6)
- Enclosure - Weatherproof Enclosure
100+ In Stock
$1,409.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Weatherproof Enclosure
100+ In Stock
$1,990.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Explosion-Proof Enclosure
100+ In Stock
$127.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 10 (bar: 0 to 0.689, kPa: 0 to 68.94)
- Enclosure - General-Purpose Enclosre
100+ In Stock
$1,424.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Explosion-Proof Enclosure
100+ In Stock
$594.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 10 (bar: 0 to 0.689, kPa: 0 to 68.94)
- Enclosure - Weatherproof Enclosure
100+ In Stock
$877.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - General-Purpose Enclosre
100+ In Stock
$2,055.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Explosion-Proof Enclosure
50+ In Stock
$292.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$293.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Explosion-Proof Enclosure
50+ In Stock
$1,502.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 80 (bar: 0 to 5.516, kPa: 0 to 551.6)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$1,884.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$1,136.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Explosion-Proof Enclosure
50+ In Stock
$2,158.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 10 (bar: 0 to 0.689, kPa: 0 to 68.94)
- Enclosure - Explosion-Proof Enclosure
50+ In Stock
$1,054.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - General-Purpose Enclosre
50+ In Stock
$851.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$1,205.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, 316 SST Bellows, Range 0-20 psid (0-1.4 bar), Max. Pressure 100 psig (6.9 bar), Min. Deadband 3.0 psid (.21 bar). show more
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - General-Purpose Enclosre
50+ In Stock
$1,420.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$2,214.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Explosion-Proof Enclosure
50+ In Stock
$1,814.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$390.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$1,897.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Brass Bellows, Range 0-30 psid (0-2.1 bar), Max. Pressure 300 psig (20.7 bar), Min. Deadband 6.0 psid (.41 bar). show more
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - General-Purpose Enclosre
50+ In Stock
$1,452.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 80 (bar: 0 to 5.516, kPa: 0 to 551.6)
- Enclosure - General-Purpose Enclosre
50+ In Stock
$526.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Brass Bellows, Range 0-10 psid (0-0.7 bar), Max. Pressure 50 psig (3.5 bar), Min. Deadband 1.5 psid (.10 bar). show more
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 10 (bar: 0 to 0.689, kPa: 0 to 68.94)
- Enclosure - General-Purpose Enclosre
50+ In Stock
$758.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Weatherproof Enclosure
50+ In Stock
$361.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - Explosion-Proof Enclosure
25+ In Stock
$2,153.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, 316 SST Bellows, Range 0-30 psid (0-2.1 bar), Max. Pressure 300 psig (20.7 bar), Min. Deadband 6.0 psid (.41 bar). show more
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - General-Purpose Enclosre
25+ In Stock
$1,376.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, Brass Bellows, Range 0-20 psid (0-1.4 bar), Max. Pressure 100 psig (6.9 bar), Min. Deadband 2.5 psid (.17 bar). show more
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - General-Purpose Enclosre
25+ In Stock
$1,911.00 CAD
$10.00 Shipping
- Deadband - Adjustable Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - Explosion-Proof Enclosure
25+ In Stock
$1,744.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 10 (bar: 0 to 0.689, kPa: 0 to 68.94)
- Enclosure - Explosion-Proof Enclosure
25+ In Stock
$1,847.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 10 (bar: 0 to 0.689, kPa: 0 to 68.94)
- Enclosure - Weatherproof Enclosure
25+ In Stock
$1,417.00 CAD
$10.00 Shipping
DWYER Differential Pressure Switch, 316 SST Bellows, Range 0-80 psid (0-5.5 bar), Max. Pressure 600 psig (41.4 bar), Min. Deadband 20 psid (1.4 bar). show more
- Deadband - Adjustable Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 80 (bar: 0 to 5.516, kPa: 0 to 551.6)
- Enclosure - General-Purpose Enclosre
25+ In Stock
$2,224.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 20 (bar: 0 to 1.379, kPa: 0 to 137.9)
- Enclosure - General-Purpose Enclosre
23 In Stock
$553.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - 316 Stainless Steel Bellows
- Pressure Range - psid: 0 to 80 (bar: 0 to 5.516, kPa: 0 to 551.6)
- Enclosure - Explosion-Proof Enclosure
17 In Stock
$2,241.00 CAD
$10.00 Shipping
- Deadband - Fixed Deadband
- Bellows Material - Brass Bellows
- Pressure Range - psid: 0 to 30 (bar: 0 to 2.068, kPa: 0 to 206.8)
- Enclosure - General-Purpose Enclosre
9 In Stock
$95.00 CAD
$10.00 Shipping
Specifications
Adjustment Type
- Field Adjustable
Approvals & Certifications
- CE
- cUL
Conduit Connection
- 1/2” Conduit Hub
- 1/2” Hole for Conduit Hub
- 3/4” NPT Female
Deadband, Approximate
- bar: 0.03 to 0.41
- bar: 0.10 to 1.37
- kPa: 10 to 137
- kPa: 3.44 to 41.4
- psid: 0.5 to 6.0
- psid: 1.5 to 20
Electrical Connectors
- Screw Terminal
Electrical Rating
- 15 A at 120/240 Vac
Enclosure, Body Material
- Flanged Steel
Maximum System Pressure
- bar: 41.4
- kPa: 4,137
- psi: 600
NPT Connection
- 1/4” NPT Male
- 1/8” NPT Female
Operating Temperature
- -23° to 82° C (-10° to 180° F)
Set Point - Decreasing
- bar: 0 to 5.516
- kPa: 0 to 551.6
- psi: 0 to 80
Set Point - Increasing
- bar: 0 to 5.516
- kPa: 0 to 551.6
- psi: 0 to 80
Switch Type
- SPDT
System Pressure
- bar: 3.447 to 41.37
- kPa: 344.7 to 4,137
- psi: 50 to 600
Wetted Materials
- 316 Stainless Steel
- Brass
- Accurate Switch Triggers in High Pressure Applications
