Roots Blower Spare Parts Check Valve

Roots Blower Spare Parts Check Valve

We make all sorts of roots blower, centrifugal blower, Our Main items are as beneath:

Variety Diameter Charge of flow Stress
ESR-MJ(Intense Variety) Φ50~Φ300mm .5~140m³/min nine.8KPa~ninety eight.8Kpa
ESR(Ordinary Sort) Φ50~Φ350mm .five~140m³/min 9.8KPa~78.4Kpa
ESR-H(Higher-stress Variety) 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 Collection Φ200~Φ600mm 20.3~750m³/min 9.8KPa~58.8Kpa
Multistage Centrifugal Blower
or C-Series
Φ250~Φ500mm 50~500m³/min nine.8KPa~98Kpa
ERR-ERG Kind Φ250~Φ500mm one hundred twenty~420m³/min 9.8KPa~ninety eight.8Kpa

The functioning principle of the a few-blade roots blower: two three-lobed rotors are arranged in the cavity, and the
suction port and the discharge port are opened on equally sides of the cavity. Via the action 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
objective of blowing.

Function of our roots blower:
one. Massive adjustment of the air quantity
two. Reduced Noise
three. High performance
4. Low strength cosumption
5. Lengthy time life
six. Dependable operating, simple servicing,modest footprint

The parameters of our roots blower:

Variety Ratary Pace
Pressure Rise
Shaft Electricity
Motor Unit Maximn
ESR-50 1100-2120 9.eight-fifty eight.8 .65-two.58 .three-three.54 .75-four 128-158
ESR-65 1100-2130 9.8-fifty eight.8 .ninety four-three.sixty six .38-4.forty six .seventy five-5.five 155-185
ESR-80 1140-1900 9.eight-58.8 two.34-5.43 one.04-seven.forty two two.2-eleven a hundred and fifty five-277
ESR-a hundred 1060-1980 nine.eight-fifty eight.eight 4.57-nine.05 1.35-12.fifteen three-fifteen 309-377
ESR-one hundred twenty five 980-1850 nine.8-fifty eight.eight five.35-twelve.four one.sixty five-five.19 5.5-18.5 408-451
ESR-125C 970-1830 nine.8-fifty eight.8 7.five-17.57 three.2-eighteen.five four-22 408-451
ESR-150 810-1730 9.eight-fifty eight.eight 10.37-27.15 3.eighty four-40.eighty two seven.five-45 688-848
ESR-a hundred seventy five 970-1520 nine.eight-fifty eight.eight 19.sixty five-36.65 seven.two-45.ninety five eleven-fifty five 980-1080
ESR-200B 740-1450 nine.eight-fifty eight.eight 19.sixty five-44.eight ten.15-sixty.forty four fifteen-seventy five 1272-1546
ESR-200 810-1480 nine.eight-58.8 27.65-fifty nine.2 eight.05-eighty,twelve fifteen-ninety 1272-1546
ESR-250B 1100-1480 9.8-fifty eight.eight fifty four.77-seventy seven.fifty five 19.ninety seven-ninety.97 thirty-110 1490-2454
ESR-250 990-1480 9.8-fifty eight.eight 61.4-97.52 20.1-117.3 thirty-132 1490-2454
ESR-three hundred 990-1480 9.eight-fifty eight.eight 26.four-167.eight 37-185 3326-3446
ESR-350 730-1480 nine.eight-fifty eight.8 78.41-177.31   55-250  
ESR-50H 1230-2120 63.7-98 .forty five-2.02 two.05-six.12 three-seven.5 a hundred and sixty–a hundred and seventy
ESR-65H 1240-2130 sixty eight .78-2.fifty three two.89-7.fifty five four-eleven 198-230
ESR-80H 1140-1900 63.7-98 one.eighty two-4.55 4.09-ten.1 5.five-fifteen 316-326
ESR-100H 1060-1980 sixty eight two.65-eight.06 6.36-17.2 7.5-22 398-459
ESR-125H 980-1850 sixty eight 4.64-11.23 eight.92-24.two eleven-thirty 544-630
ESR-150H 810-1730 sixty eight 9.53-25.76 17.16-65 18.5-75 752-1571
ESR-200H 810-1480 sixty three.7-ninety eight twenty five.34-56.ninety two forty two.34-one hundred twenty fifty five-132 1426-1934
ESR-250H 990-1480 63.7-98 eighty three.2-205 90-220 2980-3468
ESR300H 990-1480 eight 86.9-134.1 132-280 3476-3998
ERF-245 650-980 9.eight-ninety eight 47.five-97.four sixteen-183 eighteen.5-200 3630-3690
ERF-250 650-980 nine.eight-ninety eight 61.six-120.4 19-227 22-250 4450-4500
ERF-290 650-980 nine.8-78.four 92.3-128 22-213 thirty-250 4890-4710
ERF-295 650-980 nine.8-78.four 97.3-152.5 23-227 30-250 4890-4880
ERF-297 650-980 9.8-78.four 87.5-167.six 26-249 30-280 5330-5520
ERF-300 650-980 nine.8-seventy eight.4 a hundred and 29-278 37-315 5330-5520
ERF-350 650-980 nine.eight-78.four 126-224.9 34-249 45-280 5210-6470
ERG-three hundred 590-730 nine.8-98 128.3-196 38-362 forty five-400 9440-15710
ERG-350 590-730 9.8-98 159.three-231.six 43-420 fifty five-450 9700-1571
ERG-400 590-730 nine.eight-83.three fifty two-449 75-500 10090-11390
ERG-445 590-730 9.8-73.five fifty eight-477 seventy five-560 10600-12230
ERG-450 590-730 9.eight-73.5 262.4-366.2 sixty four-496 seventy five-560 10600-12230
ERG-500 590-730 9.8-sixty three.7 327.4-452.four 78-529 90-560 12790-14620
ERF-240-V 650-980 -nine.8- -forty nine 38.1-78 13-76 eighteen.five-90 3420-3285
ERF-245-V 650-980 -nine.8- -49 forty seven.5-ninety seven.4 sixteen-ninety five 22-one hundred ten 3425-3360
ERF-250-V 650-980 -nine.eight- -forty nine 63-one hundred twenty 19-117 22-132 3910-3830
ERF-290-V 650-980 -9.eight- -forty nine seventy two.six-a hundred and forty four 22-136 30-one hundred sixty 4415-4270
ERF-295-V 650-980 -9.eight- -forty nine seventy six.6-152 23-one hundred forty five thirty-a hundred and sixty 4425-4485
ERF-297-V 650-980 -nine.8- -forty nine 84.three-166.8 26-one hundred sixty thirty-a hundred and eighty 5000-4980
ERF-300-V 650-980 -9.eight- -49 ninety seven-192 29-178 37-two hundred 5000-4980
ERF-350-V 650-980 -nine.8- -forty nine 116-225 34-209 forty five-250 5400-5700
ERG-300V 590-730 -nine.eight- -forty nine 133-193 38-184 forty five-220 7800-9100
ERG-350V 590-730 -9.8- -forty nine 163-231 43-216 fifty five-250 9500-9470
ERG-400V 590-730 -nine.8- -49 199-290 fifty two-269 seventy five-315 9900-10130
ERG-445V 590-730 -9.8- -forty nine 224.eight-326.9 58-303 75-355 9900-10130
ERG-450V 590-730 -nine.eight- -49 255-365 sixty four-335 75-400 11230-11300
ERG-500V 590-730 -nine.8- -forty nine 314-452 78-412 132-450 13630-13850
ERF-245W 650-980 -13.3- -53.three 53.five-one hundred and one 21.5-102 30-one hundred ten 3630-3360
ERF-250W 650-980 -13.three- -53.three sixty nine-127 26.5-127 thirty-a hundred and sixty 3985-4115
ERF-290W 650-980 -thirteen.3- -fifty three.3 eighty two.six-150 30.5-149 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 -thirteen.three- -fifty three.3 95-174 36-174 45-two hundred 5230-5130
ERF-300W 650-980 -13.three- -fifty three.three 109-195 forty-193 fifty five-220 5230-5130
ERF-350W 650-980 -13.3- -fifty three.3 129-230 50-230 seventy five-250 5840-5670
ERG-300W 590-730 -13.three- -fifty three.three 142-197 52-201 75-220 9100-9000
ERF-350W 590-730 -13.three- -fifty three.3 168-234.four fifty nine-235.five 75-280 9500-9600
ERG-400W 590-730 -thirteen.three- -53.3 220-276.6 71-292 90-315 9900-10130
ERG-445W 590-730 -thirteen.three- -53.3 244-294.six 82-331 ninety-400 11230-11300
ERG450W 590-730 -13.3- -53.3 275-368.five ninety one-366 one hundred ten-four hundred 11230-11300
650-980 ninety eight-196 64.8-112 a hundred thirty five-355 one hundred sixty-four hundred 8700-8600
650-980 98-196 eighty.8-139 167-439 185-500 9200-9100
ETRF-three hundred
650-980 ninety eight-176.4 102-174 206-497 250-560 10320-10500
650-980 ninety eight-137.two 124-207 241-473 280-560 10700-11110
ETRG-four hundred
(three hundred,400)
590-740 98-176.four 205-273 380-773 450-900 21350-24200
590-740 98-176.four 263-428 476-955 560-1000 24200-27600
650-980 -53.three–80 72-121 75.six-121 90-one hundred sixty 6100-6470
650-980 -53.three–eighty ninety three.8-154 ninety nine.5-186 one hundred ten-220 7000-6400
(2505/three hundred)
650-980 -53.3–80 116-189 one hundred fifteen-220 132-250 7750-7760
EL81WD 580-980 nine.eight-58.eight 54.two-one hundred thirty eighteen-151 forty five-185 3595
EL82WDB 580-980 nine.eight-fifty eight.eight seventy two.eight-161 22-191 forty five-220 3860
EL83WDA 580-980 9.8-58.9 101-213 28.5-202 45-220 4300
EL84WDA 580-980 nine.eight-58.8 129-267 35.4-252 forty five-280 4720
EL93WDA 580-730 nine.eight-49 230-329 56.four-311 75-355 7765
EL94WDA 580-730 nine.8-forty nine 263-373 64-353 seventy five-400 8130
EL95WDA 490-580 9.8-58.8 308-434 81.four-414 90-450 11500
EL96WDA 580 58.eight 381 497 560 11500
E397WN 1000-1650 40 five-9      
E408WN 870-1650 40 ten-22      
E517WN 980-1580 forty twenty-thirty      
E520WN 930-1550 40 24-45      
E607WN 750-1250 forty forty five-seventy six      
E610WN 750-1250 forty seventy five-one hundred thirty      

Spare elements and structure of our roots blower:

Deal of our Roots Blower

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

Roots blower pack strategy very same as iron case, just alter to Fumigation Totally free Plywood Scenario

Our factory is a specialist company of Roots blowers which has in excess of twenty years’ experience in equipment
producing. It is situated in Xihu (West Lake) Dis. CZPT CZPT Park, fifty kilometers to the east of ZheJiang provincial
money— HangZhou. Our organization also has hassle-free site visitors transportation, as it is 15 kilometers away from
Diaozhen Town station of HangZhou-HangZhou expressway, and thirty kilometers away from CZPT HangZhou station of
ZheJiang -ZheJiang expressway.The major product of our firm is ESR -variety Roots Blower. The roots
vacuum pump is a new variety of large-efficiency roots blower, which is produced independently based mostly on the
domestic and international superior technologies. A number of patented technologies have been adopted on Roots
Blower, and hence we have manufactured considerable results in strength conservation and noise reduction, and so forth.. So significantly, our
organization has invested a lot more than thirty,000,000 RMB to introduce this kind of superior expert equipment as
horizontal machining middle, vertical machining middle, two-way CNC surface planer, CNC lathe, CNC milling
device, CNC planer, airplane grinder, cylindrical grinding device, and three coordinates testing device.
In addition to, we have taken numerous actions to CZPTize the procedure stream this sort of as functioning and cooperating
with several scientific research units, faculties and universities at residence and abroad. We also continually consider to
absorb and improve the domestic superior production systems, so as to promote the upgrading and
optimization of the merchandise and make the solution good quality get to the superior stage at residence and abroad.
ESR -variety Roots Blower includes many series this sort of as Three-leaves Sort, Two-leaves Kind and Centrifugal
Variety,which can be even more divided to hundreds of versions. The products are broadly utilised in sewage treatment method,
pneumatic conveying,vacuum packaging, aquaculture, foodstuff processing, electrical energy, petrochemical, cement,
mining and other industries. Our goods have this kind of rewards as reduced sound, power preserving, secure high quality,
and long provider existence, etc.. With the sales outlets throughout the domestic capital cities, our merchandise sell well all
in excess of the country, and have been exported to North CZPTica,Russia, Malaysia, Indonesia, Vietnam, South Africa
and some other international locations. Obtaining received the ISO9001 CZPT CZPT Method Certification, we have
recognized and enhanced the high quality assurance of the products developing, producing, and installation.
From the procedure of design and style, study and advancement to the completed items, we have got the total
procedure controlled independently, hence offering the total foundation and reliability assure for the goods steadiness
and durability. Having a perfect product sales community and soon after-product sales service, we supply our clients with higher-
top quality and far more efficient services.All employees of our business sincerely welcome the wide masses of friends to
guidebook, and negotiate enterprise with us.

Our Roots Blower Workshop

         Doosn Horzitonal CZPT Center

The Software of the Roots Blower

Maintenance and inspection
(one) Verify all fasteners and locating pins circumstances no matter whether they are loosening.
(2) Always check out no matter whether the leakage phenomenon of the body.
(three) Pay out interest to lubrication, quantity of grease and noises when operating,
determine whether or not it operates under the essential situations.
(4) CZPT & grease: The lubricant is for medium load industrial gear oil
(quality 220, kinematic viscosity of 198 ~ 242mm2 / s 40ºC, flash point ≥ 200ºC)
The grease is butter (synthetic lithium grease penetration 220-250, drop stage ≥
190ºC). Exchange the lubricant and grease following very first two hundred hours working, and replace
once again right after a moth managing. Afterwards, substitute the lubricant and grease in accordance to the
setting and lubricant (grease) top quality suggest a suitable substitute for three
(five) Often verify the inlet air filter, clear or replace the filter in time.
(6) Blower overload at times not immediately shown, so spend attention to
the intake and exhaust strain, bearing temperature and the recent boost trends
of motor to decide no matter whether the blower operates generally
(7) Before disassembling the blower, the assembling relation and proportions
should be recorded or measured, make marks on factors to make sure the CZPT
requirements soon after assembling.
(8) When newly equipment or overhaul, the oil tank need to be cleaned prior to use
and propose exchange all grease following eight hrs operating.

Widespread failure purpose and troubleshooting

No Failure Attainable reasons Elimination strategies
1 Friction
among the
(one) Impurities on the impeller,
ensuing in the gap is as well little
(2) Gear wear, resulting in a
massive backlash
(3) The gear is not nicely fixed,
can not sustain the impeller
(four) Bearing wear ensuing in
clearance growing.
(one) Get rid of dust and check out
whether there is hurt parts
(two) Change the gear gap, replace
the gears if the gear backlash is
greater than the average thirty% to
(three)Re-assemble the gears, preserve
the taper contact area is to 75%
(four)Change the bearing
2 Collision
impeller and
wall, the
impeller prime
and casing
(one) Installation hole is not correct
(2) running force is way too
large, exceeding the specified
(3) Operating temperature is too higher
(four) Casing or base deformation,
positioning fan failure
(5) Bearing axial area is not good
(1) Alter the hole
(2) Determine brings about of
overloading, reduced the force
to the specified price
(3) Check out the set up
precision and decrease the pipe
(4) Check and fix bearings,
and to make certain the clearance
three Temperature
too large
(one) Oil in tank is as well much, too
thick or also dirty
(two) CZPT or silencer is blocked
(three)The force is higher than
the specified price
(four)Extreme dress in of the
impeller, huge gap
(5)Very poor air flow, indoor
temperature is substantial, ensuing in
inlet air’s high temperature
(six) The rotating velocity is too lower,outcome in the belt slipping.
(1)Decrease the oil degree or depend on
(two)Get rid of of blocking objects
(3)Minimizing the pressure by way of
the blower
(four)Repair its clearance
(five)Open vents to reduce place
(six) Improve pace to avoid the
belt slipping.
four Inadequate
(one) The inlet filter is blocked
(two) Impeller dress in and the hole
boosts too much
(three) Belt slipping
(4) Huge imports force decline
(5) CZPT air flow leakage
(one) Clean the filter dust and
(2) Fix the hole
(three)Tighten the belt and improve
the amount of belts
(4)Change the inlet strain to the
specified value
(5) Check out and repair the pipeline
5 Oil leaking or
oil leaking
into the enclosure
(one)Large tank place cause
leakage from the discharge port
(two) Seal put on, ensuing in shaft oil spills
(three) The force is increased than
the specified price

(one)Decrease the oil amount
(two)Substitute the seals
(3)Obvious the air vents, 2mm diameter faucet is set in the
center chamber, open the faucet
underneath the wall
6 Irregular
vibration and
(1)Bearing clearance exceeds the
specified worth or bearing use
(2) The gear backlash is also
massive, not in a limited fastened
(three) The foreign objects and dust
triggered by the impeller and the
impeller, the impeller and the
housing collision
(four) the impeller shaft
deformation triggered the collision
triggered by overload,
(five) Friction between the impeller
and the inlet housing triggered by
(six) Unbalance of the impeller
triggered by fouling or foreign
human body
(7) CZPT bolts or other
fasteners are loosened
(one)Substitute bearings or bearing
(two)Reassemble equipment and make sure
(three)Cleansing blower, examine the
situation is damaged
(4)Check the back again stress, verify
the wheel and modify gap
(five)Check out the filter and back
pressure, increase the gap
between the impeller inlet and the
(six)Cleanse the impeller and the
casing, to make certain that the impeller
clearance work
(7) Tighten the anchor bolts and
leveling the base.
7 Motor
(1)Compared with the essential
stress, the stress distinction
is big that the back strain or
the inlet pressure is large
(two) Compared with the
gear requirements, blower
flow is way too big, so its strain
(3)Inlet filter is blocked, or outlet
pipe is obstructed or blocked
(4) Collusion or friction (trapped)
rotating elements
(5) The oil amount is as well substantial
(6) Slender V-belt is overheat,
vibration is too large, or pulley
is too tiny
(1) Minimize the force to the
specified worth
(two) Exhaust the excessive fuel into
the environment or minimize the
blower velocity
(three) Take away the obstructions
(four)Immediately shut down, examine
the cause
(5) Change the oil to the right
(6) Verify the belt rigidity, and
changed it with large diameter

Our Services

one. Pre promote service                                                                              two. Following sell service                                          
a. recommend the suited model                                             c. on-line complex support,                                                                                   
b. factory tour                                                                              d. whole lifestyle spare elements and techinical assist


12 months gurantee for our roots blowers

Roots Blower Spare Parts Check Valve