Stainless Steel Mvr Roots Type Steam Compressor

Stainless Steel Mvr Roots Type Steam Compressor

We make all sorts of roots blower, centrifugal blower, Our Principal merchandise are as under:

Type Diameter Fee of circulation Strain
ESR-MJ(Intense Variety) Φ50~Φ300mm .five~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Variety) Φ50~Φ350mm .five~140m³/min 9.8KPa~seventy eight.4Kpa
ESR-H(Higher-strain Type) Φ50~Φ350mm .7~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .five~160m³/min nine.8KPa~fifty three.3Kpa
EL Sequence Φ200~Φ600mm twenty.3~750m³/min nine.8KPa~fifty eight.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm fifty~500m³/min 9.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm one hundred twenty~420m³/min nine.8KPa~98.8Kpa

The working theory of the three-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on each sides of the cavity. Through the motion of a pair of
synchronous gears, the two rotors rotate in reverse instructions and Relying on the mutual engagement of the two
rotors, the suction port and the discharge port are isolated, and the fuel in the chamber is pushed to accomplish the
purpose of blowing.

Characteristic of our roots blower:
1. Large adjustment of the air volume
2. Low Noise
3. Large efficiency
four. Reduced energy cosumption
5. Long time life
6. Reputable operating, straightforward routine maintenance,little footprint

The parameters of our roots blower:

Variety Ratary Speed
Pressure Rise
Shaft Electrical power
Motor Unit Maximn
ESR-fifty 1100-2120 9.8-fifty eight.eight .sixty five-two.58 .three-3.54 .seventy five-4 128-158
ESR-sixty five 1100-2130 9.8-58.eight .ninety four-3.66 .38-4.forty six .75-5.5 a hundred and fifty five-185
ESR-eighty 1140-1900 9.8-fifty eight.eight 2.34-5.forty three one.04-seven.forty two 2.two-11 one hundred fifty five-277
ESR-100 1060-1980 9.eight-fifty eight.eight 4.57-9.05 1.35-12.fifteen 3-15 309-377
ESR-125 980-1850 nine.8-fifty eight.8 5.35-12.four 1.sixty five-5.19 five.five-eighteen.5 408-451
ESR-125C 970-1830 9.eight-fifty eight.8 seven.five-seventeen.57 3.2-eighteen.5 4-22 408-451
ESR-a hundred and fifty 810-1730 nine.eight-fifty eight.8 10.37-27.fifteen three.84-40.82 seven.5-45 688-848
ESR-a hundred seventy five 970-1520 nine.eight-58.eight 19.65-36.65 seven.two-45.ninety five eleven-fifty five 980-1080
ESR-200B 740-1450 nine.8-fifty eight.8 19.sixty five-44.eight 10.fifteen-sixty.44 15-seventy five 1272-1546
ESR-two hundred 810-1480 nine.8-fifty eight.eight 27.sixty five-59.2 eight.05-80,12 15-90 1272-1546
ESR-250B 1100-1480 nine.8-58.8 fifty four.seventy seven-seventy seven.fifty five 19.97-ninety.97 30-110 1490-2454
ESR-250 990-1480 9.8-58.eight 61.4-97.fifty two 20.1-117.3 thirty-132 1490-2454
ESR-three hundred 990-1480 9.eight-58.eight 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-fifty eight.eight 78.41-177.31   55-250  
ESR-50H 1230-2120 sixty .forty five-two.02 2.05-six.12 3-seven.5 a hundred and sixty–170
ESR-65H 1240-2130 sixty three.7-98 .78-two.fifty three 2.89-7.55 4-eleven 198-230
ESR-80H 1140-1900 sixty eight 1.82-4.55 four.09-ten.1 five.5-fifteen 316-326
ESR-100H 1060-1980 63.7-98 2.sixty five-8.06 six.36-17.2 7.5-22 398-459
ESR-125H 980-1850 eight four.sixty four-11.23 eight.ninety two-24.2 11-thirty 544-630
ESR-150H 810-1730 63.7-98 nine.53-25.seventy six 17.16-sixty five 18.5-seventy five 752-1571
ESR-200H 810-1480 63.7-ninety eight 25.34-fifty six.ninety two forty two.34-a hundred and twenty fifty five-132 1426-1934
ESR-250H 990-1480 sixty fifty 83.two-205 90-220 2980-3468
ESR300H 990-1480 63.7-ninety eight 114.7-270 132-280 3476-3998
ERF-245 650-980 9.8-98 forty seven.five-97.4 16-183 18.5-two hundred 3630-3690
ERF-250 650-980 9.8-98 sixty one.6-a hundred and twenty.four 19-227 22-250 4450-4500
ERF-290 650-980 9.eight-seventy eight.4 ninety two.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 9.8-seventy eight.4 ninety seven.3-152.5 23-227 thirty-250 4890-4880
ERF-297 650-980 9.8-78.four 87.five-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.eight-78.4 one hundred and 29-278 37-315 5330-5520
ERF-350 650-980 nine.8-78.four 126-224.9 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.eight-ninety eight 128.three-196 38-362 45-400 9440-15710
ERG-350 590-730 nine.eight-ninety eight 159.3-231.6 forty three-420 fifty five-450 9700-1571
ERG-four hundred 590-730 nine.eight-eighty three.three 203.1-290.nine fifty two-449 seventy five-500 10090-11390
ERG-445 590-730 nine.8-seventy three.5 fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.eight-73.5 262.four-366.2 sixty four-496 75-560 10600-12230
ERG-500 590-730 nine.8-sixty three.7 327.four-452.four 78-529 ninety-560 12790-14620
ERF-240-V 650-980 -nine.eight- -forty nine 38.1-seventy eight thirteen-76 eighteen.five-ninety 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine forty seven.5-97.4 sixteen-95 22-a hundred and ten 3425-3360
ERF-250-V 650-980 -9.8- -forty nine 63-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.8- -49 72.6-a hundred and forty four 22-136 30-160 4415-4270
ERF-295-V 650-980 -nine.eight- -49 76.six-152 23-a hundred forty five thirty-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.eight- -forty nine 84.3-166.8 26-a hundred and sixty thirty-one hundred eighty 5000-4980
ERF-three hundred-V 650-980 -nine.8- -forty nine 97-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -9.8- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -nine.8- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.eight- -49 163-231 forty three-216 55-250 9500-9470
ERG-400V 590-730 -nine.8- -forty nine 199-290 fifty two-269 seventy five-315 9900-10130
ERG-445V 590-730 -nine.8- -49 224.8-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -9.eight- -49 255-365 64-335 75-four hundred 11230-11300
ERG-500V 590-730 -9.8- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -53.3 53.five-101 21.five-102 thirty-a hundred and ten 3630-3360
ERF-250W 650-980 -13.three- -53.3 sixty nine-127 26.5-127 thirty-160 3985-4115
ERF-290W 650-980 -thirteen.three- -53.three eighty two.6-a hundred and fifty thirty.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.three- -fifty three.3 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -13.3- -fifty three.3 95-174 36-174 forty five-two hundred 5230-5130
ERF-300W 650-980 -13.3- -53.3 109-195 40-193 55-220 5230-5130
ERF-350W 650-980 -13.three- -fifty three.three 129-230 50-230 75-250 5840-5670
ERG-300W 590-730 -thirteen.3- -53.3 142-197 fifty two-201 seventy five-220 9100-9000
ERF-350W 590-730 -thirteen.three- -53.three 168-234.four fifty nine-235.5 seventy five-280 9500-9600
ERG-400W 590-730 -thirteen.3- -53.three 220-276.six seventy one-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -fifty three.three 244-294.six eighty two-331 90-400 11230-11300
ERG450W 590-730 -thirteen.3- -fifty three.3 275-368.5 ninety one-366 a hundred and ten-four hundred 11230-11300
650-980 98-196 64.eight-112 a hundred thirty five-355 a hundred and sixty-four hundred 8700-8600
650-980 ninety eight-196 80.eight-139 167-439 185-five hundred 9200-9100
650-980 98-176.4 102-174 206-497 250-560 10320-10500
650-980 98-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(300,four hundred)
590-740 ninety eight-176.4 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-1000 24200-27600
650-980 -53.3–eighty seventy two-121 seventy five.six-121 90-a hundred and sixty 6100-6470
650-980 -53.3–eighty 93.8-154 ninety nine.5-186 one hundred ten-220 7000-6400
650-980 -53.three–80 116-189 a hundred and fifteen-220 132-250 7750-7760
EL81WD 580-980 9.eight-58.8 54.two-130 eighteen-151 forty five-185 3595
EL82WDB 580-980 9.eight-fifty eight.8 seventy two.eight-161 22-191 45-220 3860
EL83WDA 580-980 9.8-58.9 101-213 28.5-202 forty five-220 4300
EL84WDA 580-980 9.eight-fifty eight.8 129-267 35.four-252 forty five-280 4720
EL93WDA 580-730 nine.eight-49 230-329 56.four-311 seventy five-355 7765
EL94WDA 580-730 nine.eight-forty nine 263-373 64-353 75-400 8130
EL95WDA 490-580 9.8-58.8 308-434 eighty one.four-414 90-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN 1000-1650 forty five-9      
E408WN 870-1650 forty 10-22      
E517WN 980-1580 40 20-thirty      
E520WN 930-1550 forty 24-forty five      
E607WN 750-1250 forty 45-seventy six      
E610WN 750-1250 forty 75-one hundred thirty      

Spare parts and framework of our roots compressor:

Deal of our Roots CZPT

Pack into iron situation, two layer,blower entire body and motor in reduced layer, inlet/out silencer and many others in higher layer

Roots blower pack technique very same as iron case, just change to Fumigation Cost-free Plywood Circumstance

Our manufacturing unit is a specialist maker of Roots blowers which has more than 20 years’ experience in machinery
manufacturing. It is located in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
funds— HangZhou. Our business also has hassle-free traffic transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and thirty kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The leading solution of our business is ESR -variety Roots Blower. The roots
vacuum pump is a new kind of higher-performance roots blower, which is produced independently based on the
domestic and foreign superior technologies. Many patented technologies have been adopted on Roots
Blower, and as a result we have created important results in power conservation and noise reduction, etc.. So much, our
firm has invested more than 30,000,000 RMB to introduce these kinds of sophisticated professional tools as
horizontal machining heart, vertical machining centre, two-way CNC surface area planer, CNC lathe, CNC milling
machine, CNC planer, aircraft grinder, cylindrical grinding machine, and three coordinates screening machine.
In addition to, we have taken various actions to CZPTize the approach flow such as operating and cooperating
with many scientific research units, faculties and universities at house and abroad. We also continually consider to
take in and enhance the domestic sophisticated generation systems, so as to advertise the upgrading and
optimization of the merchandise and make the product high quality achieve the sophisticated stage at property and abroad.
ESR -sort Roots Blower contains several collection such as 3-leaves Kind, Two-leaves Kind and Centrifugal
Variety,which can be even more divided to hundreds of types. The items are extensively utilized in sewage remedy,
pneumatic conveying,vacuum packaging, aquaculture, food processing, electric powered energy, petrochemical, cement,
mining and other industries. Our merchandise have such benefits as lower noise, strength conserving, steady high quality,
and lengthy support life, and so forth.. With the sales outlets throughout the domestic cash cities, our goods market properly all
above the place, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Having obtained the ISO9001 CZPT CZPT Program Certification, we have
set up and enhanced the high quality assurance of the products planning, producing, and installation.
From the method of design, research and development to the finished items, we have got the entire
approach controlled independently, as a result supplying the complete foundation and trustworthiness ensure for the products balance
and longevity. Possessing a perfect revenue network and following-income provider, we give our buyers with increased-
good quality and much more productive provider.All staff of our company sincerely welcome the wide masses of close friends to
manual, and negotiate company with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Center

The Application of the Roots Blower

Maintenance and inspection
(1) Verify all fasteners and finding pins conditions whether they are loosening.
(2) Often examine regardless of whether the leakage phenomenon of the body.
(3) Pay out attention to lubrication, volume of grease and noises when running,
decide whether it works beneath the required situations.
(4) CZPT & grease: The lubricant is for medium load industrial equipment oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop level ≥
190ºC). Substitute the lubricant and grease soon after first 200 hrs working, and substitute
again soon after a moth operating. Later, exchange the lubricant and grease according to the
setting and lubricant (grease) top quality propose a suited substitution for three
(5) Usually verify the inlet air filter, thoroughly clean or replace the filter in time.
(6) Blower overload at times not quickly displayed, so shell out attention to
the ingestion and exhaust stress, bearing temperature and the current increase trends
of motor to establish regardless of whether the blower performs normally
(seven) Prior to disassembling the blower, the assembling relation and dimensions
should be recorded or calculated, make marks on parts to make sure the CZPT
demands following assembling.
(eight) When freshly machine or overhaul, the oil tank should be cleaned ahead of use
and propose substitute all grease following 8 hours working.

Common failure purpose and troubleshooting

No Failure Attainable reasons Elimination strategies
1 Friction
among the
(1) Impurities on the impeller,
ensuing in the hole is way too little
(2) Equipment put on, ensuing in a
big backlash
(3) The gear is not effectively mounted,
can not keep the impeller
(4) Bearing wear ensuing in
clearance increasing.
(1) Eliminate dust and verify
whether or not there is harm areas
(two) Change the gear gap, substitute
the gears if the gear backlash is
greater than the common thirty% to
(3)Re-assemble the gears, hold
the taper speak to spot is to seventy five%
(4)Exchange the bearing
two Collision
impeller and
wall, the
impeller leading
and casing
(1) Set up gap is not right
(two) working pressure is as well
large, exceeding the specified
(3) Functioning temperature is way too high
(four) Casing or foundation deformation,
positioning supporter failure
(5) Bearing axial location is not great
(one) Change the gap
(2) Determine brings about of
overloading, diminished the strain
to the specified benefit
(3) Examine the installation
precision and lessen the pipe
(four) Verify and mend bearings,
and to make sure the clearance
3 Temperature
too high
(1) Oil in tank is also a lot, as well
thick or also filthy
(two) CZPT or silencer is blocked
(three)The force is larger than
the specified worth
(4)Excessive put on of the
impeller, massive hole
(5)Very poor ventilation, indoor
temperature is higher, resulting in
inlet air’s large temperature
(six) The rotating pace is too lower,result in the belt slipping.
(one)Reduce the oil level or rely on
(2)Eliminate of blocking objects
(3)Decreasing the pressure by way of
the blower
(4)Restore its clearance
(five)Open up vents to minimize area
(6) Boost velocity to avert the
belt slipping.
4 Insufficient
(1) The inlet filter is blocked
(two) Impeller wear and the gap
raises way too significantly
(3) Belt slipping
(four) Big imports force decline
(five) CZPT air flow leakage
(one) Cleanse the filter dust and
(2) Fix the gap
(three)Tighten the belt and enhance
the amount of belts
(four)Modify the inlet strain to the
specified price
(five) Examine and fix the pipeline
five Oil leaking or
oil leaking
into the enclosure
(one)Large tank situation result in
leakage from the discharge port
(two) Seal use, resulting in shaft oil spills
(three) The force is larger than
the specified price

(one)Reduce the oil level
(two)Change the seals
(3)Clear the air vents, 2mm diameter faucet is fixed in the
center chamber, open up the faucet
underneath the wall
six Abnormal
vibration and
(one)Bearing clearance exceeds the
specified value or bearing put on
(2) The equipment backlash is way too
massive, not in a limited fastened
(3) The overseas objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation induced the collision
induced by overload,
(5) Friction among the impeller
and the inlet housing induced by
(six) Unbalance of the impeller
caused by fouling or foreign
(7) CZPT bolts or other
fasteners are loosened
(1)Substitute bearings or bearing
(2)Reassemble equipment and make sure
(3)Cleansing blower, verify the
case is broken
(four)Check the again force, check out
the wheel and adjust hole
(5)Examine the filter and back
force, increase the gap
in between the impeller inlet and the
(6)Clear the impeller and the
casing, to make sure that the impeller
clearance operate
(7) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(1)Compared with the necessary
stress, the strain distinction
is huge that the back again strain or
the inlet stress is higher
(2) In comparison with the
tools needs, blower
circulation is too large, so its pressure
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating parts
(five) The oil level is way too substantial
(6) Slender V-belt is overheat,
vibration is also huge, or pulley
is as well tiny
(1) Lessen the stress to the
specified price
(two) Exhaust the surplus gas into
the ambiance or lessen the
blower pace
(3) Get rid of the obstructions
(4)Right away shut down, check
the reason
(five) Modify the oil to the correct
(6) Check the belt rigidity, and
replaced it with huge diameter

Our Service

one. Pre offer service                                                                              2. Following promote service                                          
a. suggest the ideal model                                             c. on the web complex assistance,                                                                                   
b. factory tour                                                                              d. complete lifestyle spare elements and techinical help


twelve months gurantee for our roots blowers

Stainless Steel Mvr Roots Type Steam Compressor

Vacuum Pump

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