vacuum pump for drying power transformers
Product Description
Vacuum Pump for drying power transformers
1. Less energy consumption.
2. Factory direct sales, competitive price
3. Ensured after sales
4. Customization service available
5. Quicker response and faster delivery time
6. Longest service life,Lowest usr cost.
Multistage Dry vacuum pump structure advantage
| Multistage Dry Vacuum Pump Gas Way
| Screw dry vacuum pump Gas Way
|
| Ø Airflow direction radial, Corrosive process gas does not attack the bearing and gear axially direct | Ø Airflow direction axial, Corrosive process attack the bearing and gear axially in gear cap violent |
| Ø Process gas is compressed uniformly in each stage of rotors. Uniform compression heat, so lower exhaust gas temperature | Ø The process gas is compressed centrally at the end of screw, so high exhaust gas temperature and screw |
| Ø Process gas could contact with more cooling jacket surface, high heat dissipation efficiency | Ø Process gas could contact with few cooling jacket surface, low heat dissipation |
| Ø Roots rotor is more resistant to particles and adherents, few impacts on its performance after its surface wear and corrosion | Ø Screw rotor is unsuitable for particles and adherents, large impacts on its performance after its surface wear and corrosion |
| Model 5 series |
| MRD5320 | MRD5380 | MRD5480 | MRD5600 | MRD5750 | MRD5880 | |||||
| Pumping Capacity(50/60Hz) | m3/hr | 270/320 | 330/380 | 400/460 | 550/650 | 650/780 | 800/950 | |||||
| Ultimate Pressure(50/60Hz) | Mbar(A) | 0.2/0.15 | 0.15/0.10 | |||||||||
| Motor Power (IEC Motor) | kw | 7.5 | 15 | 18.5 | ||||||||
| Motor Speed(50/60Hz) | Rpm | 2960/3570 | ||||||||||
| Process Connection | ||||||||||||
| Inlet Flange | DIN/ASME | DN80 PN10 (3” 150#) | DN100 PN10 (4” 150#) | DN150 PN10 (5” 150#) | ||||||||
| Exhaust Flange | DIN/ASME | DN40 PN10 (1.5” Female) | DN50 PN10 (2” Female) | |||||||||
| Cooling Water | ||||||||||||
| Max Inlet Pressure | bar | 4 | ||||||||||
| Max Outlet Temperature | °C | 70 | 60 | |||||||||
| Lubricant | ||||||||||||
| Gearing Oil Type |
| Shell T-68 | Shell T-68 | |||||||||
| Seal Type | ||||||||||||
| Gearing End Seal |
| Mechanical seal + Lip Seal | ||||||||||
| Bearing End Seal |
| Piston Ring Seal + Gas purge Seal | ||||||||||
| Seal Purge Seal | ||||||||||||
| Nitrogen Pressure | Bar | 0.1-0.25 | ||||||||||
| Connection |
| 0.25In Female / Φ6 Tube | ||||||||||
| Noise Level(50/60Hz) | dB | 78 | 80 | |||||||||
| Vibration | μm | <20 | <25 | |||||||||
| Weight (with motor) | Kg | 385 | 415 | 435 | 710 | 760 | 800 | |||||
| Max Exhaust Gas Temperature | °C | 50 | 55 | 60 | 75 | 80 | 85 | |||||
| Max Pump Surface Temperature | °C | 25 | 25 | 25 | 32 | 32 | 32 2 | |||||
DENAIR Team
DENAIR Factory & Product Lines
DENAIR Certificates
DENAIR Global Customers
DENAIR Exhibitions
1. Engineers available to service machinery overseas.
2. Sales engineers provide specific reply within 24 hours when the customer has after-sales problem until it’s solved.
3. Guarantee period is 1 year for the whole machine (except maintenance consumables).
Q : How many staff in DENAIR Group?
A : About 400.
Q : How many staff in your factory?
A : About 70.
Q : How many staff in your international trading company?
A : 20.We have salesman who can speak English,French,Russian,Spanish,Indonesian and Arabic.
Q : What's your factory’s production capacity?
A : About 500 units per month.
Q : What’s the sales volume of DENAIR Group in a year?
A : About USD 40,000,000.00 in 2014.
Q : What’s the sales volume of your international trading company in a year?
A : About USD 8,000,000.00 in 2014,20% of the Group annual sales.
Q : How many units does DENAIR export in one month?
A : About 50-100.
Shanghai DENAIR Compressor Co., Ltd.
Office Add.:No. 6767, Tingfeng Rd. Jinshan District, Shanghai 201502, China
Factory Add.:No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, Pinghu, Zhejiang Province, China
Product Categories : vacuum pump > screw vacuum pump
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