WS gravel pump brochure Gravel pump Sand pump Dredge pump Centrifugal slurry pump High chrome alloy wet parts Shijiazhuang Aier Machinery Co., Ltd http://aiermachinery.com http://slurrypump.pro

1. WS Series Gravel Pumps
SHIJIAZHUANG AIER MACHINERY CO., LTD
SHIJIAZHUANG HEBEI, CHINA

2. AIER 爱尔机械
MACHINERY WS Series Gravel Pumps
1
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Company Introduction
Shijiazhuang Aier Machinery Co., Ltd. is a large-scale professional manufacturer of slurry pumps, gravel
pumps, dredge pumps, sewage pumps and clean water pumps in China.
All products are mainly supplied to environmental protection, wastewater treatment, urban water supply
and drainage, mine, metallurgy, coal, petrochemical, building material, thermal power FGD, river
dredging, tailing disposal and other fields. The products are selling well in China and sold far to
Germany, U.S., Canada, Australia, Russia, Ukraine, Kazakhstan, Brasil, Chile, Argentina, Bolivia,
Malaysia, Indonesia, India, Poland, South Africa, Tanzania, etc.
Our firm has strong technical force and is specially engaged in the research of abrasion resistant
materials of slurry pumps, sewage pumps and water pumps and the development of new products. The
materials include high chrome white iron, duplex stainless steel, stainless steel, ductile iron, rubber, etc.
We use CFD, CAD method for product design and process design based absorbing experience of world
leading pump companies. We integrate molding, smelting, casting, heat treatment, machining and
chemical analysis, and have professional engineering and technical personnel.
Our company started to build our new factory in 2013 and finished in Spring of 2014. The new factory is
located in Lincheng Xingtai Hebei, covering 67,000 m2
and of annual design annual casting capacity
3,000 tons. In the new factory, we can produce different parts from small to huge. Casting & machining
orders are welcome as well.

3. AIER 爱尔机械
MACHINERY WS Series Gravel Pumps
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Pump Introduction
WS/WSG gravel pumps are designed for continuously handling the most difficult higher abrasive slurries which
contain too big solids to be pumped by a common pump. They are suitable for delivering slurries in mining, explosive
sludge in metal smelting, dredging in dredger and course of rivers, and other fields. Type WS(G) pumps are of high-
head ones.
Typical Applications
Tailings, sugar beet, dredging, slag granulation, cyclone feed, slag granulation, suction hopper dredging,
barge loading, mill discharge, sand reclamation, booster pumping, sand waste, material transfer, etc.
Features
Construction of this pump is of single casing connected by means of clamp bans and wide wet-passage. The wet-
parts are made of Ni-hard and high chromium abrasion–resistance alloys. The discharged direction of pump can be
oriented in any direction of 360°.
This type of pump possesses the advantages of easy installing and operation, good performance of NPSH and
abrasion-resistance.
Typies of driver: V belt driver, gearbox driver, elastic coupling driver, fluid couplings driver, frequency conversion
driver, silicon controlled rectifier speed regulation etc.
Pump Notation
200WS-F:
200: Outlet diameter: mm
WS: Pump type: Gravel pump
F: Frame plate type

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MACHINERY WS Series Gravel Pumps
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Construction Design
1. Shaft 2. Mount Base 3. Impeller Release Collar 4. Shaft Spacer
5. Seal Assembly 6. Adaptor Plate 7. Back Liner 8. Bowl 9. Clamp Ring
10. Door Clamp Plate 11. Door 12. Impeller 13. Flange

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MACHINERY WS Series Gravel Pumps
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Pump Part Material
Part Name Material Specification HRC Application OEM Code
Bowl, door, back liner
& impeller
Metal
AB27: 23%-30% chrome white iron ≥56
Used for higher wear condition
with pH between 5 and 12
A05
AB15: 14%-18% chrome white iron ≥59 Used for higher wear condition A07
AB29: 27%-29% chrome white iron 43
Used for lower pH condition
especially for FGD. It also can
be used for low-sour condition
and desulfuration installation
with pH no less than 4
A49
AB33: 33%-37% chrome white iron
It can transport oxygenated
slurry with pH not be less than
1 such as phospor-plaster, nitric
acid, vitriol, phosphate etc.
A33
Expeller & expeller
ring
Metal
B27: 23%-30% chrome white iron ≥56
Used for higher wear condition
with pH between 5 and 12
A05
Grey iron G01
Stuffing Box Metal
AB27: 23%-30% chrome white iron ≥56
Used for higher wear condition
with pH between 5 and 12
A05
Grey iron G01
Door clamp plate,
bearing house & base
Metal
Grey iron G01
Ductile iron D21
Shaft Metal Carbon steel E05
Shaft sleeve, lantern
ring/resctrictor, neck
ring, gland bolt
Stainless
steel
4Cr13 C21
304 SS C22
316 SS C23
Joint rings & seals Rubber
Butyl S21
EPDM rubber S01
Nitrile S10
Hypalon S31
Neoprene S44/S42
Viton S50

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MACHINERY WS Series Gravel Pumps
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Transmission Module Design
Large diameter pump shaft, cylindrical
Construction of heavy load, metric
bearing using oil lubrication or grease
lubrication; opened in serial, the
construction features of small volume
and high reliability.
Shaft Bearing Assembly
A large diameter shaft with a short overhang minimizes
deflection and vibration.
Heavy duty roller bearings are housed in a removable
bearing cartridge.
Pump Base
Fasten the pump in the base with a minimum number of bolts
and adjust impeller in a convenient position below the
bearing housing.
Water proof cover prevents leakage water from flying.
Protection cover prevents leakage water from the bearing
bracket.

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MACHINERY WS Series Gravel Pumps
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Shaft Seal Module Design
1. Packing Box
2. Front Lantern Ring
3. Packing
4. Packing Gland
5. Shaft Sleeve
1. Release Gland
2. Expeller
3. Packing
4. Packing Gasket
5. Lantern Ring
6. Packing Gland
7. Oil Cup
GRJ Mechanical Seal
GRG type is used for liquid which is not allowed diluted.
HRJ Mechanical Seal
HRJ type is used for liquid allowed dilute.
High hardness ceramic and ally are adopted for material of friction parts.
It possesses high abrasive resistance & shake proof to guarantee that
sealing effect can be satisfied by customer in various conditions.

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MACHINERY WS Series Gravel Pumps
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Clear Water Performance
Model
Allowable
Mating
Max
Power(kw)
Clear Water Performance
Max
Particle
Through
Impeller
DiameterMax
Capacity
Max
Head
Max
Allowed
Speed
Max
Efficiency
NPSH
Q(m3/h) H(m) n(rpm) ŋ(%) (m) (mm) (mm)
100WS-D 60 320 52 1400 58 2.5-3.5 82 378
150WS-E 120 790 50 1400 60 3-4.5 127 378
150WSG-F 260 1050 86 1100 71 2-5 140 610
150WSG-S 560 1050 86 1100 71 2-5 140 610
200WS-F 260 900 50 1000 65 3-7.5 178 533
200WS-S 560 900 50 1000 65 3-7.5 178 533
200WS-X 560 900 50 1000 65 3-7.5 178 533
200WSG-S 560 1420 80 950 72 2-5 180 686
200WSG-X 560 1420 80 950 72 2-5 180 686
250WS-G 600 1600 60 850 65 1.5-4.5 220 667
250WS-ST 560 1600 60 850 65 1.5-4.5 220 667
250WSG-G 600 2850 80 700 73 2-10 210 915
250WSG-T 1200 2850 80 700 73 2-10 210 915
300WS-G 600 3650 70 700 68 2-8 241 864
300WS-T 1200 3650 70 700 68 2-8 241 864
350WS-G 600 3600 44 500 70 3-9 254 1016
350WSG-
TU
1200 4000 70 500 72 3-6 230 1220
400WS-G 600 4300 50 500 72 3-6 254 1067
400WS-TU 1200 4300 50 500 72 3-6 254 1067
450WS-TU 1200 5400 46 400 68 3-6 330 1270

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MACHINERY WS Series Gravel Pumps
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Installation Dimensions