Supplier of control and measuring instruments in Latvia, Estonia and Lithuania. Worldwide delivery
Supplier of control and measuring instruments in Latvia, Estonia and Lithuania. Worldwide delivery
Explosion-proof Series H3 Explosion-Proof Differential Pressure Switch, heavy duty, industrial unit has a unique new design which provides sensitivity to differential pressures as low as 10 inches of water (254 mm w.c.), yet handles total pressure of 1500 psi (103 bar). Unlike common differential pressure switches that use a piston-type motion transfer, the Series H3 utilizes a rotary motion transfer shaft that prevents a change in total pressure from causing a setpoint shift. Unit yields deadbands approximately 5% of range, with zero setpoint shift due to variation in working pressures. Friction is minimized and repeatability increased by allowing range spring to act directly on diaphragm plate. Rolling diaphragm design maintains constant effective area to further reduce friction. Diaphragm is allowed to “seat”, allowing application of full rated pressure, up to 1500 psi (103 bar), on either high or low pressure port, without damage. Special over-travel feature prevents overtightening of range adjust screw.
Made in USA. brand DWYER, model H3
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.
price by request
Available
Founded in 1931, DWYER manufactures equipment for measurement, conversion and control – pressure, temperature, level, flow.
Official distributor in Latvia
Time-tested American, European and Asian brands of control and measurent instruments
Special price list for organisations
We offer a significant discount for trade organisations and manufacturing companies
Worldwide shipping on request
We take care of all logistics and customs clearance. Fast delivery to Baltic countries
After-sales service and support
Warranty service and repair, expert assistance in the operation of the instruments
PRODUCT APPLICATIONS
| Model | Description | Price |
|---|---|---|
| A-610 | Pipe mounting kit for 1-1/4″ to 2″ pipe. 5.6″ x 4.6″ x 1.4″, 1.0 .lb (Magnehelic® sold separately) |
$36.65
|
| XAMPLE | H3 | A | 1 | S | C | MV | Series H3A-1SC-MV Explosion-proof, Weatherproof Differential Pressure Switch, aluminum chamber, nitrile diaphragm, range 10-180″ w.c., SPDT snap switch, terminal block, ATEX approved, with gold contacts on snap switch. |
| SERIES | H3 | Explosion-proof, Weatherproof Differential Pressure Switch | |||||
| CHAMBER/DIAPHRAGM MATERIAL |
A S |
Aluminum Chamber and Nitrile Diaphragm Stainless Steel Chamber and Fluoroelastomer Diaphragm |
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| ADJUSTABLE RANGE |
1 2 3 4 |
10-180″ w.c. (2.48-44.78 kPa) 0.5-15 psid (0.03-1 bar) 5-70 psid (0.34-4.8 bar) 10-200 psid (0.7-13.8 bar) |
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| SWITCH | S D |
SPDT Snap Switch, Rated 5 A @ 120/250 VAC, 30 VDC DPDT Snap Switch, Rated 5 A @ 120/250 VAC, 30 VDC |
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| ELECTRICAL CONNECTIONS |
C L T |
ATEX Approved Internal Terminal Block 18 AWG x 18″ Lead Wires UL/CSA Approved Internal Terminal Block |
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| OPTIONS | DRAIN MV PRESET ST VIT |
Housing with Drain, allows condensate to be drained, (NEMA 3 instead of 4X) Gold Contacts on Snap Switch for Dry Circuits Preset Stainless Steel Tag Fluoroelastomer Diaphragm (standard with stainless steel chamber) |
You can request the necessary certificates, documentation, instructions and user guide for DWYER H3 using the special form.
You can buy DWYER H3 in Latvia at a favourable price in «OLIL SIA» by leaving a request on the website, by phone +371 672 70580 or by email olil@olil.lv. DWYER H3 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.
