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DWYER H2

Photo DWYER H2 Description DWYER H2 Specifications DWYER H2 Ordering DWYER H2 Model Chart DWYER H2 User Manual for DWYER H2 Related instruments to DWYER H2

DWYER H2 dual-action explosion-proof pressure switch

DWYER H2 dual-action explosion-proof pressure switch

Explosion-Proof, UL & CSA Listed for Class I, Groups B, C & D and Class II, Groups E, F & G. The Series H2 Dual-Action Explosion-Proof Pressure Switch is designed for sequencing two different actions as pressure of a liquid or gas increases or decreases. The design consists of two concentric pistons operated by a single diaphragm with one pressure chamber. Each piston actuates a separate switch independent of the other. The switches may be adjusted to operate together, at opposite ends of the range or at two intermediate set points. The threaded top is removed to field adjust or service switches without disturbing electrical or pressure connections. The Duotect® switch is explosion-proof and weatherproof. It can be mounted in any position and is not affected by vibration.

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Made in USA. brand DWYER, model H2

Fast delivery to Latvia, Estonia and Lithuania. International delivery to Europe, Asia, Africa and other continents available on request
Our warehouse is located in Riga, Latvia.

Retailprice from $2064,4

Available

Available

Founded in 1931, DWYER manufactures equipment for measurement, conversion and control – pressure, temperature, level, flow.

Advantages

Official distributor in Latvia

Time-tested American, European and Asian brands of control and measurent instruments

Advantages

Special price list for organisations

We offer a significant discount for trade organisations and manufacturing companies

Advantages

Worldwide shipping on request

We take care of all logistics and customs clearance. Fast delivery to Baltic countries

Advantages

After-sales service and support

Warranty service and repair, expert assistance in the operation of the instruments

Description of DWYER H2

PRODUCT APPLICATIONS

  • Mechanical HVAC or process equipment
  • Chemical, petroleum, food and drug processing industries
  • Process and Industrial applications

FEATURES

  • Explosion-proof and weatherproof housing provides device protection for outdoor use or harsh environment operation
  • UL listed, CSA approved to support rigorous process applications and regulations
  • Independent piston action design for either gas or liquid allows switches to active together or independently based on settings
  • Mounting in any position and not affected by vibration provides reliable switching for equipment

Technical specifications of DWYER H2

  • Wetted Materials: 316 SS chamber with FEP diaphragm and Buna-N O-ring standard. Fluoroelastomer or EPDM O-ring optional.
  • Temperature Limit: 275°F (135°C). CSA approved: -20 to 90°C (-4 to 184°F).
  • Pressure Limit: 1500 psig (103 bar).
  • Enclosure Rating: UL listed explosion-proof, Class I, Groups B, C, and D. Class II Groups E, F, and G. Meets NEMA 4X (IP66). CSA optional. Class I, Groups B, C & D. Class II, Groups E, F, & G -20°C ≤ Tamb ≤ 75°C T6 [optional -20°C ≤ Tamb ≤ 40°C T5] Type 4.
  • Switch Type: Two SPDT snap switches.
  • Electrical Rating: 5 A @ 125/250 VAC, 5 A res., 3 A ind. @ 30 VDC. Gold contacts optional.
  • Electrical Connections: 18 AWG, 18″ (460 mm) long.
  • Conduit Connection: 3/4″ female NPT.
  • Process Connection: 1/4″ female NPT.
  • Mounting Orientation: Any position.
  • Set Point Adjustment: Internal nut.
  • Weight: 2 lb (.9 kg).
  • Deadband: Approximately 10% of range.
  • Compliance: CSA, UL.

How to buy DWYER H2

Model Description Price
H2S-1
Duotect® dual-action explosion-proof pressure switch, 3-40 psig (0.21-2.76 bar) low range, 5-75 psig (0.35-5.17 bar) high range
$2,064.40
H2S-2
Duotect® dual-action explosion-proof pressure switch, 25-250 psig (1.72-17.2 bar) low range, 30-400 psig (2.07-27.6 bar) high range
$2,064.40
H2S-3
Duotect® dual-action explosion-proof pressure switch, 100-1000 psig (6.89-68.9 bar) low range, 150-1500 psig (10.3-103 bar) high range
$2,064.40
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Model Chart DWYER H2

EXAMPLE H2 S 1 CSA Series H2S-1-CSA Dual-Action Explosion-Proof Pressure Switch, stainless steel housing, low range 3-40 psi, high range 5-75 psi, with CSA approval.
SERIES H2 Dual-Action Explosion-Proof Pressure Switch
HOUSING S Stainless Steel
RANGE 1
1S
2
2S
3
3S		 Low Range 3-40 psi, High Range 5-75 psi
3-75 psi
Low Range 25-250 psi, High Range 30-400 psi
25-400 psi
Low Range 100-1000 psi, High Range 150-1500 psi
100-1500 psi
OPTIONS CSA
MV
PRESET
ST
EPDM		 CSA Approval
Gold Contact Switch
Preset
Stainless Steel Tag
Ethylene Propylene O-rings
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User Guide and Instruction manual for DWYER H2

You can request the necessary certificates, documentation, instructions and user guide for DWYER H2 using the special form.

You can buy DWYER H2 in Latvia at a price starting from2064,4 $ in «OLIL SIA» by leaving a request on the website, by phone +371 672 70580 or by email . DWYER H2 price are subject to change depending on exchange rates. We deliver instruments by transport companies in Latvia, Estonia and Lithuania. Worldwide shipping to Europe, Asia, Africa, North and South America available on request.

See also: Differential Pressure Switches,  Explosion Proof Pressure Switches,  Fuel & Oil Pressure Switches,  Gas & Air Pressure Switches,  High Pressure Switches,  Liquid & Water Pressure Switches,  Low Pressure Switches,  Pressure Switches,  Pressure Switches For Air Compressor,  Pressure Switches For Water Pump,  Pressure Switches Spdt