BKD mono screw pump

BKD Mono screw pump

item name item Name item Name
1 Shaft 7 Gland packing 13 Bar
2 Oil seal 8 Suction flange 14 Rotor
3 Bearing 9 Connected pole 15 Stator
4 Bearing housing 10 Suction chamber 16 Support
5 Heavy duty bearing 11 Cardan joint 17 Replease chamber
6 Connected shaft 12 Front flange

1.Wide flow and pressure range: maximum flow up to 400m /h, conventional pressure up to 4.8mpa, special design pressure up to 10MPa
2.High viscosity is up to 1000000 cm.
3.The maximum suction is up to 7.5 meters.
4.The surface roughness of stator and stator core die has reached 0.4, which is the highest level in the industry, ensuring the surface roughness and reducing friction.

A B C D E F G A

B

C

D

E

F

G

Application

Characteristic parameter
maximum pump pressure 12.0 MPa Determined by the delivery process system, choose the pump series.
maximum working pressure 10MPa
maximum vacuum degree 0.085MPa Depending on the operating conditions, medium physical characteristics, pump series, etc.
maximum temperature pump medium allowed 150℃ Depends on the pump medium, the stator material structure.
mPas 1000000cp pump medium and pump speed and specifications.
maximum allowable solid content 60% pump specifications and solid characteristics and size and other factors.
maximum allowable gas content 1:50 volume of the gas in the standard state is related to the pressure of the suction chamber.
Material combination
number name Instruction
1 model BKD series single screw pump, V for vertical pump, H for hopper pump, horizontal ellipsis not standard; Z is a directly connected structure, bearing structure is not standard.
2 Series Specifications 102,103,104,107,108,110,112,115,118,121,125,129,130。
3 Lead code According to the lead property, it can be divided into L (long lead), N (ordinary lead) and S (short lead) subseries.
4 Flow 400m3/h。
The maximum flow is 400m3/h.
5 pressure The normal working pressure is 4.8mpa, and the special design can reach 10MPa.
6 material combination · rotor stator Flow passage components
40Cr NBR 40Cr/45
1Cr18Ni9Ti NBR 1Cr18Ni9Ti/304
304 food-rubber 304
304 EPDM 304
1Cr18Ni9Ti EPDM 1Cr18Ni9Ti/304
45 FBR 45
1Cr18Ni9Ti     FBR 1Cr18Ni9Ti/304
2Cr13 NBR 1Cr18Ni9Ti/2Cr13
316L NBR 316L/304
S31803 FBR S31803/316L

1.According to the wear of the choice of pump speed
2.Special cases of the specific medium and its wear characteristics are given in the table. Please note that the characteristics of the medium vary with its concentration and temperature.
3.When the larger the size of the pump, the speed should be selected lower.

 Abrasiveness Medium Revolving speed
No Water, lubricating oil, soapy water, blood, glycerin, etc. 400-1000(rpm)
Ordinary Heavy oil, municipal sewage, mud, suspension, industrial wastewater, paint pigment, paper pulp, mortar, food seasoning products, etc. 200-400(rpm)
Serious Super heavy oil, limestone cement slurry, clay, clay, coal water slurry, dehydrated sludge, glass glue, catalyst slurry, etc. 50-200(rpm)
medium mucus 1~1000(cst) 1000~10000(cst) 10000~100000(cst) 100000~500000(cst)
revolving speed 400~1000(rpm) 200~400(rpm) <200(rpm) <100(rpm)
Rubber's character  NBR FPM EPDM
Maximum temperature +100℃ +150℃ +120℃
 abrasive resistance
ageing resistance
ozone resistance ×
Steam resistance
 flame resistance

○:Premium ●:nice △:ordinary ×:no 

 

Adaptability NBR FPM W.NBR EPDM
kerosene ×
diesel ×
Ammonium chloride × × ×
Ketone containing materials × × ×
Alcohol containing materials
Fatty materials × × ×
Materials containing ether × × ×
Slurry
phosphoric acid
sodium carbonate ×
Furfural
Benzene 100 × × ×
Acetone × × ×
inseed oil
 carbon disulfide × × ×
ethyl alcohol
Water
vegetable oil
mineral oil ×
ammonium hydroxide ×
aromatic solvent × × ×
concentrated base ×
aqua fortis × × ×
glacial acetic acid ×
dilute sulphuric acid
 oil of vitriol × ×
 HCL ×
concentrated hydrochloric acid
Hot water ×
gasoline ×
methylbenzene × × ×
 xylene × × ×

Note: the medium in the table is the qualitative condition of some common medium. If you have special medium condition or special requirement, please contact us.

0.6MPa
0.6MPa
L series 100rpm Qth
(m³/h)
Speed(max)
(rpm)
Flow
(m³/h)
Shaft power (Kw) Ordinary speed (rpm) Flow
(m³/h)
Shaft power(Kw)
102 0.11 2200 1.7 0.7 1450 1.1 0.5
103 0.32 1650 3.7 1.6 1100 2.4 1.1
104 0.93 1050 7 2.5 700 4.5 1.7
107 2.62 750 14 5.1 550 10 3.8
108 4.35 650 20.9 7.2 450 14.1 5
110 7.38 550 30.1 10.3 400 21.3 7.5
112 12.26 450 43.1 13.9 300 28 9.3
115 20.61 350 56.3 18.1 250 39.2 13
118 34.62 300 81 26.1 200 52.6 17.5
121 57.99 250 118.9 34.7 180 82.5 23.6
125 97.64 225 180.2 48.9 160 123.4 35.6
129 166.11 200 272.4 72.8 140 183.7 50.2
130 257.02 175 368.9 96.6 120 243.7 62.5
1.2MPa
1.2MPa
N series 100rpm Qth(m³/h) Speed(max) (rpm) Flow
(m³/h)
Shaft power (Kw) Ordinary speed (rpm) Flow
(m³/h)
Shaft power(Kw)
102 0.06 2200 0.9 0.6 1450 0.6 0.4
103 0.16 1600 1.9 1.2 1100 1.2 0.8
104 0.46 1050 3.5 2.2 700 2.2 1.4
107 1.31 750 7.3 3.9 550 5.1 2.8
108 2.2 650 10.6 5.6 450 6.9 3.8
110 3.69 550 16.1 8 400 10.6 5.5
112 6.23 450 22.2 11 300 13.5 6.9
115 10.44 350 28.9 14.4 250 18.8 9.6
118 17.54 300 43.2 20.3 200 26.7 12.9
121 29.41 250 60.3 28.3 180 40.3 19.4
125 49.49 225 94.7 42.1 160 62.6 28.6
129 83.05 200 141.2 62.8 140 91.9 41.9
130 128.5 175 191.2 85 120 121.8 55.6

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