Сохранить в закладки 60796597402:
Product Introduction:
It is of low center of gravity, high vibration resistance and easy for installation. They are widely used for automatic production control system in industrials including chemistry, petroleum, light industry, power station, metallurgy.
Technical Parameters:
| Inherent Regulation Ratio | 50:1 |
| Nominal Pressure MPa | 1.6, 4.0, 6.4 |
| Service Temperature | -100~-60℃; -200~-100℃; -250~-200℃ |
| Amient Temperature | -30~70℃ |
| Air Supply Pressure KPa | 0.14, 0.25, 0.40 |
| Spring Range KPa | 20~100(Basic type), 40~200, 80~240 |
| Connection Thread | G 1/4", M16X1.5 |
Technological Performance Indexes and Testing:
Testing shall be conducted according to the specification of GB/T4213-92
| Serial No. | Technical Performance | Without Positioner | With Positioner |
| 1 | Basic Error | ≤± 5% | ≤± 1% |
| 2 | Return Difference | ≤ 3% | ≤ 1% |
| 3 | Dead Zone | ≤ 3% | ≤ 0.4% |
| 4 | Leakage | ≤ 1X10-3 Rated flow | |
| 5 | Rated Flow Coefficient | ≤± 10% | |
| 6 | Inherent Flow Characteristic | Slope ± 30% | |
Dimension:



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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
Factory View:

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
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