Description: EVP ETH series of ultra-low temperature products are used in the vacuum system, condensing water vapor and oil mist to reduce the evacuation time and increase vacuum degree to get clean vacuum.
Product Info:
Application principle: There is a certain amount of residual gas in the high-vacuum environment where the oil diffusion pump is used. More than 80% of the residual gas is water vapor, oil vapor and other high-boiling vapors. But all the residual gas is also the source of the workpiece, which will affect the quantity and quality of the product. Cryogenic pump is a good choice to solve such problems.
The working principle of cryogenic pump: place a cooling coil that can be below -120 ¡æ in a vacuum chamber or oil diffusion pump port to capture rapaidly the residual gas vacuum system through the surface of the low-temperature condensation effect. So that it reduce evacuation time (60-90% reduction in evacuation time) and geta clean vacuum environment (up to a half-order vacuum, 10-8 Torr, 10-5 Pa).
The main performance characteristics
1, It can absorb vapor of water and oil quickly, so that it can reduce evacuation time 60-90%;
2, It can improve coating quality and making coating not fall off and pure color;
3,Cooling rapidly. It can cool to -120 ¡æ or even -150 ¡æ within 1 minute;
4,hot gas can defrost within 30 seconds,then return to warm and cooling within 2 minutes;
5, There is touch screen and PLC which makes a perfect automation control;
6, Dual-way load can be designed;
7,mixed of imported compressors and green environment mixed refrigerant;
8, with two load inlet and outlet temperature display and device temperature display;
9, defrost temperature can be freely set;
10, with water temperature and exhaust temperature display;
11, With water shortage and high temperature alarm;
12, Self protection when compressor exhaust and pressures is too high;
13, It can be free conversion between local and remote control;
14, With RS485 computer data interface, the computer can read temperature data and its control.
Specifications:
ETH-135-20A | ETH-135-32A | ETH-135-32AX | ETH-135-50A | ETH-135-50AX | |
Compressor | Bitzer | Bitzer | Bitzer | Bitzer | Bitzer |
Compressor power£¨HP£© | 10 | 12 | 12 | 15 | 15 |
Maximum power£¨kW£© | 11.7 | 14.1 | 14.1 | 18.1 | 18.1 |
Working current£¨A£© | 21 | 24 | 24 | 31 | 31 |
Rated current voltage | 380V£¬50Hz£¬ three phase and four wire | ||||
Working temperature£¨¡æ£© | -100¡«-150 | ||||
Evacuation(L/s) | 149000 | 238400 | 238400 | 372500 | 280000 |
Maximum cooling capacity£¨W£©
(-100¡æ) |
2100 | 2800 | 2800 | 3800 | 3800 |
Length of refrigerating pipe | 20m£¬Φ16mm | 32m£¬Φ16mm |
double lines
16m£¬Φ10mm |
50m£¬Φ16mm |
double lines
14m£¬Φ16mm |
Suface area of refrigerating pipe
£¨m²£© |
1 | 1.6 | 1 | 2.5 | 1.5 |
Cooling mode | Water cooled£¬temperature18¡æ~30¡æ£¬The water pressure2bar~4bar | ||||
The cold water flow
£¨t/h£© |
1.8 | 2.5 | 2.5 | 3.2 | 3.2 |
Cold water interface size
£¨mm£© |
16 | 16 | 16 | 19 | 19 |
Pre-refrigerating time
£¨min£© |
30 | ||||
cooling downtime£¨min£© | ≤3 | ≤4 | ≤4 | ≤5 | ≤5 |
Defrosting time
£¨min£© |
≤3 | ≤3 | ≤3 | ≤4 | ≤4 |
Re-cooling downtime£¨min£© | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 |
Apply oil diffusion pump diameter
£¨mm£© |
≤800 | ≤900 | ≤600 | ≤1000or 2×600 | ≤800 |
Apply cavity diameter
£¨mm£© |
≤1300 | ≤1500 | ≤1000 | ≤1800 | ≤1500 |
Need power cold water machine
£¨HP£© |
7 | 8 | 8 | 10 | 10 |
Weight | 480kg | 550kg | 550kg | 580kg | 580kg |