Water China in Rabat Morocco bowex coupling supplier Cooling in Liverpool United Kingdom helical shaft coupling Roots Blower for Pheumatic with top quality lowest price

Water  China  in   Rabat Morocco   bowex coupling  supplier  Cooling  in   Liverpool United Kingdom   helical shaft coupling Roots Blower for Pheumatic with top quality lowest price

We – EPG Team the biggest couplings and gears factory in China with 5 diverse branches. For more information: Cell/whatsapp/telegram/Kakao us at: 0086-13083988828 /

We make all sorts of roots blower, centrifugal blower, Our Major products are as below:

Sort Diameter Price of flow Pressure
ESR-MJ(Intensive Sort) Φ50~Φ300mm .5~140m³/min 9.8KPa~ninety eight.8Kpa
ESR(Normal Sort) Φ50~Φ350mm .five~140m³/min nine.8KPa~seventy eight.4Kpa
ESR-H(Higher-stress Kind) Φ50~Φ350mm .seven~160m³/min fifty eight.8KPa~98.8Kpa
ESR-V(Vacuum Pump) Φ50~Φ350mm .5~160m³/min 9.8KPa~fifty three.3Kpa
EL Sequence Φ200~Φ600mm twenty.3~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Collection
Φ250~Φ500mm fifty~500m³/min nine.8KPa~98Kpa
ERR-ERG Variety Φ250~Φ500mm a hundred and twenty~420m³/min 9.8KPa~98.8Kpa

The operating theory of the 3-blade roots blower: two a few-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. By means of the motion of a pair of
synchronous gears, the two rotors rotate in opposite directions 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 achieve the
purpose of blowing.

Function of our roots blower:
one. Large adjustment of the air quantity
two. Low Sound
three. High performance
4. Low energy cosumption
5. Extended time daily life
six. Reputable working, effortless servicing,modest footprint

The parameters of our roots blower:

Sort Ratary Speed
Pressure Increase
Shaft Electrical power
Motor Device Maximn
ESR-50 1100-2120 9.eight-58.8 .65-two.58 .three-3.fifty four .seventy five-four 128-158
ESR-65 1100-2130 nine.eight-58.eight .ninety four-3.66 .38-4.forty six .seventy five-five.5 155-185
ESR-80 1140-1900 nine.8-fifty eight.eight 2.34-5.43 one.04-7.42 2.two-eleven one hundred fifty five-277
ESR-one hundred 1060-1980 9.8-58.8 4.57-9.05 1.35-twelve.15 3-fifteen 309-377
ESR-a hundred twenty five 980-1850 9.8-58.8 5.35-twelve.4 1.sixty five-five.19 five.five-18.5 408-451
ESR-125C 970-1830 9.eight-58.8 seven.5-17.fifty seven three.two-18.five 4-22 408-451
ESR-150 810-1730 9.eight-fifty eight.eight 10.37-27.fifteen 3.eighty four-forty.82 7.5-45 688-848
ESR-a hundred seventy five 970-1520 nine.8-58.8 19.sixty five-36.sixty five seven.2-45.95 11-fifty five 980-1080
ESR-200B 740-1450 nine.eight-58.eight 19.65-44.eight ten.fifteen-sixty.44 fifteen-seventy five 1272-1546
ESR-two hundred 810-1480 nine.eight-fifty eight.eight 27.sixty five-fifty nine.two eight.05-80,twelve 15-ninety 1272-1546
ESR-250B 1100-1480 nine.8-fifty eight.8 54.seventy seven-77.fifty five 19.ninety seven-ninety.ninety seven 30-110 1490-2454
ESR-250 990-1480 nine.eight-fifty eight.eight 61.4-ninety seven.52 twenty.one-117.three 30-132 1490-2454
ESR-300 990-1480 nine.eight-fifty eight.eight 87.1-138.one 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.8-58.eight 78.forty one-177.31   55-250  
ESR-50H 1230-2120 63.7-98 .45-2.02 two.05-six.12 three-7.five a hundred and sixty–170
ESR-65H 1240-2130 63.seven-98 .seventy eight-two.53 two.89-7.fifty five four-eleven 198-230
ESR-80H 1140-1900 sixty three.seven-98 one.eighty two-four.55 four.09-ten.one five.five-fifteen 316-326
ESR-100H 1060-1980 63.seven-98 2.sixty five-8.06 6.36-seventeen.two seven.5-22 398-459
ESR-125H 980-1850 63.7-98 four.64-eleven.23 eight.92-24.2 eleven-30 544-630
ESR-150H 810-1730 sixty three.seven-98 9.53-twenty five.76 17.16-sixty five eighteen.five-seventy five 752-1571
ESR-200H 810-1480 63.seven-ninety eight 25.34-56.ninety two 42.34-one hundred twenty 55-132 1426-1934
ESR-250H 990-1480 63.7-ninety eight 58-ninety three.7 eighty three.two-205 ninety-220 2980-3468
ESR300H 990-1480 63.seven-ninety eight 86.9-134.1 114.seven-270 132-280 3476-3998
ERF-245 650-980 nine.eight-ninety eight 47.5-97.four sixteen-183 18.five-two hundred 3630-3690
ERF-250 650-980 nine.8-98 61.six-one hundred twenty.4 19-227 22-250 4450-4500
ERF-290 650-980 9.8-78.four 92.three-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-seventy eight.four 97.3-152.five 23-227 30-250 4890-4880
ERF-297 650-980 9.eight-78.4 87.5-167.six 26-249 30-280 5330-5520
ERF-three hundred 650-980 9.8-78.4 101.5-188.seven 29-278 37-315 5330-5520
ERF-350 650-980 9.8-78.4 126-224.nine 34-249 forty five-280 5210-6470
ERG-300 590-730 nine.8-98 128.3-196 38-362 45-400 9440-15710
ERG-350 590-730 9.8-ninety eight 159.three-231.6 43-420 55-450 9700-1571
ERG-four hundred 590-730 nine.8-eighty three.three 203.one-290.9 52-449 seventy five-five hundred 10090-11390
ERG-445 590-730 nine.8-seventy three.5 229.7-327.eight fifty eight-477 75-560 10600-12230
ERG-450 590-730 9.eight-73.five 262.four-366.two 64-496 75-560 10600-12230
ERG-500 590-730 nine.eight-63.seven 327.4-452.4 78-529 90-560 12790-14620
ERF-240-V 650-980 -nine.eight- -forty nine 38.1-78 thirteen-76 eighteen.5-ninety 3420-3285
ERF-245-V 650-980 -nine.eight- -forty nine forty seven.5-ninety seven.four sixteen-95 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.8- -forty nine 63-120 19-117 22-132 3910-3830
ERF-290-V 650-980 -nine.eight- -49 seventy two.six-144 22-136 thirty-one hundred sixty 4415-4270
ERF-295-V 650-980 -nine.8- -49 seventy six.6-152 23-one hundred forty five 30-one hundred sixty 4425-4485
ERF-297-V 650-980 -9.eight- -forty nine 84.three-166.eight 26-one hundred sixty 30-a hundred and eighty 5000-4980
ERF-300-V 650-980 -9.eight- -49 97-192 29-178 37-200 5000-4980
ERF-350-V 650-980 -nine.eight- -49 116-225 34-209 45-250 5400-5700
ERG-300V 590-730 -9.8- -49 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -nine.eight- -49 163-231 forty three-216 fifty five-250 9500-9470
ERG-400V 590-730 -9.eight- -49 199-290 fifty two-269 75-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.8-326.nine 58-303 seventy five-355 9900-10130
ERG-450V 590-730 -9.eight- -forty nine 255-365 64-335 75-400 11230-11300
ERG-500V 590-730 -nine.eight- -forty nine 314-452 seventy eight-412 132-450 13630-13850
ERF-245W 650-980 -thirteen.three- -fifty three.3 53.five-a hundred and one 21.five-102 thirty-one hundred ten 3630-3360
ERF-250W 650-980 -thirteen.three- -53.3 sixty nine-127 26.5-127 30-160 3985-4115
ERF-290W 650-980 -13.3- -53.three 82.six-a hundred and fifty 30.five-149 37-185 4340-4580
ERF-295W 650-980 -thirteen.3- -fifty three.three 87-158 32-158 37-185 4440-4580
ERF-297W 650-980 -thirteen.three- -53.3 ninety five-174 36-174 45-200 5230-5130
ERF-300W 650-980 -thirteen.3- -fifty three.3 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -thirteen.3- -fifty three.3 129-230 fifty-230 75-250 5840-5670
ERG-300W 590-730 -13.three- -fifty three.three 142-197 fifty two-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -53.3 168-234.four 59-235.5 75-280 9500-9600
ERG-400W 590-730 -13.3- -53.three 220-276.6 71-292 90-315 9900-10130
ERG-445W 590-730 -13.3- -fifty three.3 244-294.six eighty two-331 90-400 11230-11300
ERG450W 590-730 -13.three- -fifty three.3 275-368.5 ninety one-366 110-400 11230-11300
650-980 ninety eight-196 64.eight-112 one hundred thirty five-355 one hundred sixty-four hundred 8700-8600
650-980 98-196 eighty.eight-139 167-439 185-five hundred 9200-9100
ETRF-three hundred
650-980 ninety eight-176.four 102-174 206-497 250-560 10320-10500
650-980 98-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,four hundred)
590-740 98-176.four 205-273 380-773 450-900 21350-24200
590-740 98-176.4 263-428 476-955 560-a thousand 24200-27600
650-980 -53.3–eighty 72-121 75.6-121 ninety-160 6100-6470
650-980 -53.three–80 ninety three.eight-154 99.5-186 one hundred ten-220 7000-6400
650-980 -53.3–eighty 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 9.8-fifty eight.8 fifty four.2-one hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.eight-fifty eight.eight 72.8-161 22-191 45-220 3860
EL83WDA 580-980 9.eight-58.nine one hundred and one-213 28.five-202 45-220 4300
EL84WDA 580-980 nine.8-58.eight 129-267 35.4-252 45-280 4720
EL93WDA 580-730 9.eight-forty nine 230-329 fifty six.four-311 75-355 7765
EL94WDA 580-730 9.8-49 263-373 sixty four-353 75-400 8130
EL95WDA 490-580 nine.eight-fifty eight.eight 308-434 eighty one.four-414 90-450 11500
EL96WDA 580 fifty eight.8 381 497 560 11500
E397WN 1000-1650 forty five-nine      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty 20-thirty      
E520WN 930-1550 40 24-forty five      
E607WN 750-1250 40 45-76      
E610WN 750-1250 forty 75-130      

Spare components and framework of our roots blower:

Bundle of our Roots Blower

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

Roots blower pack strategy very same as iron situation, just alter to Fumigation Free of charge Plywood Scenario

Our factory is a skilled maker of Roots blowers which has above 20 years’ experience in equipment
producing. It is positioned in Xihu (West Lake) Dis. East Industrial Park, 50 kilometers to the east of Shan EPT provincial
cash— HangZhou. Our company also has hassle-free site visitors transportation, as it is 15 kilometers absent from
Diaozhen City station of HangZhou-HangZhou expressway, and 30 kilometers away from East HangZhou station of
ZheJiang -ZheJiang expressway.The foremost merchandise of our company is ESR -type Roots Blower. The roots
vacuum pump is a new variety of large-performance roots blower, which is developed independently based mostly on the
domestic and overseas superior technologies. A number of patented technologies have been adopted on Roots
Blower, and therefore we have manufactured considerable consequences in strength conservation and noise reduction, and so forth.. So far, our
organization has invested much more than 30,000,000 RMB to introduce such advanced expert gear as
horizontal machining heart, vertical machining center, two-way CNC area planer, CNC lathe, CNC milling
equipment, CNC planer, airplane grinder, cylindrical grinding device, and a few coordinates testing device.
Besides, we have taken various measures to standardize the method flow this kind of as operating and cooperating
with several scientific research units, colleges and universities at residence and overseas. We also constantly try to
take up and boost the domestic sophisticated manufacturing systems, so as to market the upgrading and
optimization of the solution and make the item high quality get to the sophisticated degree at property and overseas.
ESR -kind Roots Blower consists of a number of collection such as Three-leaves Type, Two-leaves Kind and Centrifugal
Variety,which can be further divided to hundreds of varieties. The items are broadly utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, meals processing, EPT energy, petrochemical, cement,
mining and other industries. Our goods have such rewards as minimal sound, strength preserving, secure high quality,
and prolonged services life, etc.. With the product sales outlets throughout the domestic funds towns, our items market properly all
in excess of the region, and have been exported to North The united states,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other nations around the world. Getting received the ISO9001 Intercontinental Top quality Technique Certification, we have
recognized and enhanced the top quality assurance of the items planning, production, and installation.
From the procedure of design and style, analysis and improvement to the completed products, we have got the complete
approach controlled independently, as a result supplying the complete basis and trustworthiness ensure for the merchandise stability
and sturdiness. Possessing a perfect income network and following-sales support, we give our consumers with greater-
high quality and a lot more successful services.All staff of our firm sincerely welcome the broad masses of close friends to
information, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal Equipment Middle

The Application of the Roots Blower

Maintenance and inspection
(one) Check out all fasteners and locating pins conditions whether or not they are loosening.
(2) Usually check regardless of whether the leakage phenomenon of the entire body.
(3) Spend attention to lubrication, volume of grease and noises when operating,
determine regardless of whether it functions underneath the needed situations.
(4) Lubricant & grease: The lubricant is for medium load industrial equipment oil
(grade 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, fall stage ≥
190ºC). Change the lubricant and grease following very first 200 hours running, and exchange
yet again following a moth managing. Afterwards, replace the lubricant and grease in accordance to the
environment and lubricant (grease) quality suggest a ideal EPT for three
(five) Usually verify the inlet air filter, clear or exchange the filter in time.
(six) Blower overload often not quickly shown, so pay attention to
the ingestion and exhaust pressure, bearing temperature and the present increase trends
of motor to establish whether the blower functions normally
(7) Ahead of disassembling the blower, the assembling relation and dimensions
must be recorded or measured, make marks on parts to guarantee the original
requirements after assembling.
(eight) When newly machine or overhaul, the oil tank must be cleaned before use
and suggest substitute all grease after eight hrs managing.

Typical failure reason and troubleshooting

No Failure Achievable motives Elimination strategies
1 Friction
in between the
(1) Impurities on the impeller,
resulting in the hole is too small
(two) Gear use, resulting in a
big backlash
(3) The gear is not effectively fastened,
can not preserve the impeller
(four) Bearing wear ensuing in
clearance growing.
(1) Eliminate grime and check
whether or not there is injury parts
(2) Change the equipment gap, substitute
the gears if the gear backlash is
higher than the regular 30% to
(three)Re-assemble the gears, hold
the taper speak to spot is to seventy five%
(4)Exchange the bearing
2 Collision
impeller and
wall, the
impeller leading
and casing
(1) Installation hole is not appropriate
(2) working force is also
large, exceeding the specified
(three) Functioning temperature is too large
(four) Casing or base deformation,
positioning admirer failure
(five) Bearing axial location is not great
(1) Adjust the hole
(2) Recognize leads to of
overloading, reduced the strain
to the specified benefit
(3) Examine the set up
accuracy and reduce the pipe
(four) Examine and restore bearings,
and to make certain the clearance
3 Temperature
as well higher
(one) Oil in tank is way too considerably, also
thick or too dirty
(2) Filter or silencer is blocked
(3)The force is higher than
the specified benefit
(four)Abnormal put on of the
impeller, huge hole
(five)Very poor air flow, indoor
temperature is large, resulting in
inlet air’s large temperature
(six) The rotating pace is too low,outcome in the belt slipping.
(one)Decrease the oil level or depend on
(2)Take away of blocking objects
(three)Minimizing the strain by means of
the blower
(4)Repair its clearance
(5)Open vents to decrease space
(6) Boost pace to avert the
belt slipping.
4 Inadequate
(one) The inlet filter is blocked
(2) Impeller dress in and the gap
increases way too much
(three) Belt slipping
(four) Large imports strain loss
(five) Pipeline air flow leakage
(one) Clean the filter dust and
(2) Restore the hole
(three)Tighten the belt and enhance
the number of belts
(four)Adjust the inlet pressure to the
specified price
(5) Examine and mend the pipeline
five Oil leaking or
oil leaking
into the enclosure
(1)Substantial tank situation trigger
leakage from the discharge port
(two) Seal use, resulting in shaft oil spills
(three) The pressure is larger than
the specified benefit

(1)Reduce the oil amount
(2)Substitute the seals
(3)Clear the air vents, 2mm diameter faucet is set in the
center chamber, open up the faucet
under the wall
six Irregular
vibration and
(1)Bearing clearance exceeds the
specified worth or bearing put on
(two) The gear backlash is also
massive, not in a tight set
(three) The overseas objects and dust
brought on by the impeller and the
impeller, the impeller and the
housing collision
(4) the impeller shaft
deformation caused the collision
triggered by overload,
(five) Friction among the impeller
and the inlet housing brought on by
(six) Unbalance of the impeller
triggered by fouling or overseas
entire body
(seven) Anchor bolts or other
fasteners are loosened
(1)Replace bearings or bearing
(2)Reassemble equipment and ensure
(three)Cleansing blower, verify the
case is broken
(four)Check out the back again force, check out
the wheel and change gap
(five)Verify the filter and back again
strain, improve the hole
among the impeller inlet and the
(six)Clear the impeller and the
casing, to ensure that the impeller
clearance operate
(seven) Tighten the anchor bolts and
leveling the foundation.
7 Motor
(1)In comparison with the necessary
strain, the stress big difference
is large that the back pressure or
the inlet stress is substantial
(2) In contrast with the
products requirements, blower
flow is too massive, so its pressure
(three)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (stuck)
rotating areas
(5) The oil level is way too large
(6) Narrow V-belt is overheat,
vibration is as well massive, or pulley
is way too modest
(one) Reduce the strain to the
specified price
(2) Exhaust the extra gasoline into
the ambiance or decrease the
blower speed
(three) Eliminate the obstructions
(4)Right away shut down, verify
the cause
(five) Adjust the oil to the proper
(six) Examine the belt pressure, and
replaced it with massive diameter

Our Support

one. Pre promote service                                                                              2. Soon after offer service                                          
a. suggest the suited model                                             c. on-line technological assist,                                                                                   
b. manufacturing unit tour                                                                              d. entire daily life spare elements and techinical assistance


twelve months gurantee for our roots blowers

/ The use of original products manufacturer’s (OEM) portion quantities or logos , e.g. CASE® and John Deere® are for reference functions only and for indicating merchandise use and compatibility. Our business and the listed EPT parts contained herein are not sponsored, authorized, or produced by the OEM. /

Water  China  in   Rabat Morocco   bowex coupling  supplier  Cooling  in   Liverpool United Kingdom   helical shaft coupling Roots Blower for Pheumatic with top quality lowest price

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