Presair has developed an easy cross reference to help determine if our Tinytrol® Miniature Vacuum Switches can replace others on the market.
Presair offers factory set vacuum switches as direct replacements for many existing pneumatic control options on the market. With competitive pricing, faster lead times, and the ability to customize controls to meet specific application requirements, Presair stands out as a top producer of switches and controls.
Easy Cross Reference Guide
To assist you in finding the right replacement vacuum switch, we’ve created a simple cross-reference guide. Find your pressure switch using the cross-reference guide below, or download the PDF document here. For further assistance, contact our support team.
Benefits of Choosing Presair Tinytrol® Miniature Vacuum Switches
- Variety of custom options available compared to others on the market.
- Ratings up to 25A@250VAC for heavy duty applications.
- Made in the U.S.A.
Need Assistance?: If your series isn’t listed, our customer service team is here to help. Call us directly with your switch or application requirements, and a representative will assist you promptly. Click here to learn more about our Tinytrol® Miniature Vacuum Switches.
Tinytrol® Miniature Vacuum Switches Cross Reference
| Manufacturer | Presair | Tecmark | Herga |
| Product Name | TxV Series | VTBS 3000 | HPS-600-V |
| Mounting Styles & Air Connections | 1/8 NPT, Radial /w Side Air Spout | 1/8 NPT Male Pressure Fitting | Mounting Plate /w 2 Screws, Port Holes for 4 self tapping screws, 1/8″ BSPT & NPT Brass |
| Construction | Plastic | Plastic | Plastic, Steel, Brass |
| Diaphragm Material Options | Nitrile, EPDM, Silicone | Buna-N, EPDM, Hydrin, Elastomeric | Urethane |
| Function | Open or Close on Negative Pressure Rise or Fall | Open or Close on Negative Pressure Rise or Fall | Open or Close on Negative Pressure Rise or Fall |
| Vacuum Range | 2.5 to 300 inches of water | 22 to 138 inches of water | 2 to 387 inches of water |
| Max. Proof Pressure | Varies | Varies | 400 inches of water |
| Contact Configuration | SPDT, SPST, DPDT | SPST, SPDT | SPDT |
| +100,000 Max. Resistive Cycle Rating @120VAC | 25A @ 240VAC | 25A @ 250VAC | 15A @ 250VAC |
| Certifications | UL / cUL | UL / cUL | UL |
| Country of Origin | USA | USA | UK |
Additional Factory Set Vacuum Switch Cross-Reference
Additionally, Omega factory set vacuum switches (PSW Series), that considered obsolete, are still available directly from Presair! As an easy guide for you we have created this simple cross reference guide to help you find the part you need. If you have one of the part numbers listed below, simply match it to our part number. **Tip: Search this list for your part number using the Find function of your browser – Google Chrome’s shortcut is ctrl-f.
| Your Part Number | Our Part Number | Item Description |
|---|---|---|
| PSW27-1P | TNP118E-1PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 1 Psig Rising Switch Rating: 10A@250VAC (resistive) |
| PSW27-2P | TNP111A-2PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 2 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27-5P | TNP111A-5PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 5 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27-10P | TNP111A-10PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 10 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27-20P | TNP111A-20PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 20 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27-30P | TNP111A-30PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 30 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27-40P | TNP111A-40PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 40 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27-50P | TNP111A-50PR | Pressure Switches with 1/8 MNPT Fitting
Factory Setpoint: 50 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW27V-25W | TNV118A-25WR | Vacuum Switches with 1/8 MNPT Fitting
Factory Setpoint: 25 inches of water rising Switch Rating: 10A@250VAC (resistive) |
| PSW27V-30W | TNV118A-30WR | Vacuum Switches with 1/8 MNPT Fitting
Factory Setpoint: 30 inches of water rising Switch Rating: 10A@250VAC (resistive) |
| PSW27V-40W | TNV111A-40WR | Vacuum Switches with 1/8 MNPT Fitting
Factory Setpoint: 40 inches of water rising Switch Rating: 21A@250VAC (resistive) |
| PSW27V-50W | TNV111A-50WR | Vacuum Switches with 1/8 MNPT Fitting
Factory Setpoint: 50 inches of water rising Switch Rating: 21A@250VAC (resistive) |
| PSW27V-75W | TNV111A-75WR | Vacuum Switches with 1/8 MNPT Fitting
Factory Setpoint: 75 inches of water rising Switch Rating: 21A@250VAC (resistive) |
| PSW27V-100W | TNV111A-100WR | Vacuum Switches with 1/8 MNPT Fitting
Factory Setpoint: 100 inches of water rising Switch Rating: 21A@250VAC (resistive) |
| PSW27V-200W | TNV111A-200WR | Vacuum Switch with 1/8 MNPT Fitting
Factory Setpoint: 200 inches of water rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-1P | TVP118A-1PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 1 Psig Rising Switch Rating: 10A@250VAC (resistive) |
| PSW28-2P | TVP111A-2PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 2 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-5P | TVP111A-5PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 5 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-10P | TVP111A-10PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 10 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-20P | TVP111A-20PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 20 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-30P | TVP111A-30PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 30 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-40P | TVP111A-40PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 40 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW28-50P | TVP111A-50PR | Pressure Switch with Center Spout for 1/8 I.D. Tubing
Factory Setpoint: 50 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW29-1P | TRP118A-1PR | Pressure Switch with Radial Spout for 1/8 I.D. Tubing
Factory Setpoint: 1 Psig Rising Switch Rating: 10A@250VAC (resistive) |
| PSW29-2P | TRP111A-2PR | Pressure Switch with Radial Spout for 1/8 I.D. Tubing
Factory Setpoint: 2 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW29-5P | TRP111A-5PR | Pressure Switch with Radial Spout for 1/8 I.D. Tubing
Factory Setpoint: 5 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW29-10P | TRP111A-10PR | Pressure Switch with Radial Spout for 1/8 I.D. Tubing
Factory Setpoint: 10 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW29-20P | TRP111A-20PR | Pressure Switch with Radial Spout for 1/8 I.D. Tubing
Factory Setpoint: 20 Psig Rising Switch Rating: 21A@250VAC (resistive) |
| PSW29-30P | TRP111A-30PR | Pressure Switch with Radial Spout for 1/8 I.D. Tubing
Factory Setpoint: 30 Psig Rising Switch Rating: 21A@250VAC (resistive) |




