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-Pilot operated piston construction with low power consumption
-Seal serves longtime at steam ambient.
-USE for long-time working in pipeline system
| Medium | Steam, hot water, oil, etc |
| Temperature | PTFE seal: -20℃ to 200℃ VITON seal: -10 to 150℃ |
| Pressure | 0.03Mpa~1.6Mpa NC |
| Port size | 1/2'', 3/4'', 1'', 1 1/4'', 1 1/2'', 2'' |
| Port Thread | G, NPT |
| Orifice(mm) | 15, 20, 25,32,40,50 |
| Voltage | DC-12V, 24V,36V; AC24V, 120V, 240V/60Hz; 110V, 220V/50Hz |
| Tolerance | +/-10% |
| Coils | Y42H, 50VA(AC), 20W(DC), IP65, 100%ED |
| Material | Base- Brass Seal- PET Amature Tube- Stainless steel 304 Plunger- Stainless steel 430f Stop-SS 403F Springs- SS 304 Shading rings- stainless steel 304 |
US Series Piston Pilot Operated NC
| Model | Port Size | Orifice | CV | Min Pressure | Max Pressure AC(22VA) DC(17W) | Seal | Valve | Coil |
| US | 1/2'' | 15
| 4.5 | 0.03Mpa | 1.6Mpa | PTFE VITON | Brass | Y42H |
| US | 3/4'' | 20 | 9.3 | 0.03Mpa | 1.6Mpa | |||
| US | 1'' | 25 | 12 | 0.03Mpa | 1.6Mpa | |||
| US | 1 1/4'' | 32 | 24 | 0.03Mpa | 1.6Mpa | |||
| US | 1 1/2'' | 40 | 29 | 0.03Mpa | 1.6Mpa | |||
| US | 2'' | 50 | 48 | 0.03Mpa | 1.6Mpa |

COVNA founded in 2000 and have 18 years of experience for valves. We own professional quality management and process inspection team which ensure the product with good quality., one year warranty and CE, RoHS, ISO9001, TUV certificate. We have large number of stock and most of the products could be delivered to you about 3-5 working days. COVNA professional and fast response sales team can reply your inquiry within 12 hours and offer you the best product consultant service.
“We are confident that our products can get your one hundred percent of trust and help you to achieve success with our great efforts.” - CEO Mr. Bond.
Our Advantage:
1. 18 years of experience of valves
2. Consistent product quality and reduction of defective productivity
3. Significant cost reduction versus competitors
4. 1 year of warranty time
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Our Services:


Each product will be packed in foam and carton or pallet to keep it safety during shipment.
Ocean Freight, Air Freight, Express are accepted
New products from manufacturers at wholesale prices