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PLAST-O-MATIC SWT Pressure Switches

Series SWT Pressure Switch with PTFE diaphragm, for pressures to 150 PSI. Versatile snap-action 16 Amp/3 terminal switch is standard; low deadband 3 Amp switch optional. For 25 Amp switch, consult factory. PVC, CPVC, PP or PVDF.

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Made in USA. brand PLAST-O-MATIC, model SWT

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

Available

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Official distributor in Latvia

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

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Special price list for organisations

We offer a significant discount for trade organisations and manufacturing companies

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Worldwide shipping on request

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

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After-sales service and support

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

Descriptions of PLAST-O-MATIC SWT

  • The Plast-O-Matic Series SWT Pressure Switch can be used to activate or de-activate equipment when pressure in a piping system either rises or falls to a set pressure.
  • Liquid in the piping system acts against a PTFE diaphragm.
  • The diaphragm works against a piston and spring, which triggers an electrical switch within the upper chamber of the unit.
  • Spring pressure is set by simply threading the adjusting screw in and out.
  • Series SWT contains a snap-action electric switch with three terminals.
  • One is common, one is normally-open, and one is normally-closed.
  • The normally-open switch will close upon reaching the set pressure, and the normally-closed switch will open when set pressure is reached.
  • Set pressure can be reached by higher system pressure falling to the set value, or when lower system pressure rises to the set value.
  • As an example, the switch can be set to actuate at 50 PSI, rising pressure (switch actuates when pressure rises to 50 PSI).
  • When the pressure rises to 50 PSI the normally-open contact will close, and the normally-closed contact will open.
  • Therefore, depending on how the switch is wired, a light, or a pump, etc. can be energized or de-energized…or one item could be energized and another de-energized at the same moment.
  • As the pressure continues to rise, no further changes occur.

Technical specifications of PLAST-O-MATIC SWT

  • Materials:  1/2″ NPT system inlet fitting.
  • Wetted Parts: PVC type 1, grade 1, and PTFE There are no wetted elastomers
  • Non-wetted Parts: PVC, type 1, grade 1, Ethylene Propylene Rubber (EPR), stainless steel, nylon, Buna-N.
  • Pressure Rating: Maximum inlet pressure: 150 psi.
  • Operating Pressure: There are three ranges, 15-50 PSI, 50-100 PSI, 100-150 PSI, each according to the spring that is installed. All three springs are included with the assembly. The middle range spring (50-100 PSI) is installed by the factory. The spring is changed by removing the Adjusting Screw. Do not disassemble the main housing. See “Setting the Switch” for further details.
  • Electric Switch Rating: 16 amps @125 VAC, 1/2 HP, 16 amps @ 250 VAC, 1/2 HP. UL recognized and CSA approved. NOTE: A 25 Amp switch and a low deadband 3 Amp switch are available. See Section V, “Deadband”. Minimum order quantities may apply. Consult factory for additional details.
  • Other: NEMA 4X construction; water and corrosion resistant.
  • Operating Temp. Range: PVC: 40°F to 140°F

User Guide and Instruction manual for PLAST-O-MATIC SWT

You can request the necessary certificates, documentation, instructions and user guide for PLAST-O-MATIC SWT using the special form.

You can buy PLAST-O-MATIC SWT in Latvia at a favourable price in «OLIL SIA» by leaving a request on the website, by phone +371 672 70580 or by email . PLAST-O-MATIC SWT 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.