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Ws+ Series (NEMA) - Self-Priming Centrifugal Pumps

The Ws+ uses a unique design that combines the abilities of most liquid ring pumps with the efficiencies of the W+ centrifugal series. As a result customers can now handle entrained air and lift requirements with lower horsepower, less noise and at lower cost.
Model Inlet Size Outlet Size Maximum Impeller Size Maximum Capacity (GPM) Maximum Head (FT) Maximum Discharge Pressure Maximum Operating Pressure
inch mm inch mm inch mm 1750 rpm 3500 rpm 1750 rpm 3500 rpm

260 psi (18 bar): W+10/8, W+22/20, W+30/80, W+35/55, W+35/35, W+110/130 200 psi (14 bar): W+25/210, W+30/120, W+50/8, W+55/35, W+55/60, W+60/110, W+65/350, W+70/40, W+80/80

 

Optional: Heavy duty clamping ring, increasing max. outlet pressure to

360 psi (25 bar): W+30/120, W+55/35, W+55/60, W+60/110, W+70/40)

290 psi (20 bar): W+80/80

203°F (95°C) as standard.

>203°F, please contact SPX FLOW
10/8 1.5 38 1 25 4.3 110 32 65 17 68
22/20 2 51 2 51 5.6 142 85 175 34 138
25/210 6 152 4 102 11.4 290 1610 - 134 -
30/80 4 102 3 76 76 76 315 650 43 171
30/120 4 102 3 76 6.9 175 410 810 47 190
35/35 2.5 65 2 51 6.9 175 142 280 49 198
35/55 3 3 2.5 65 7.1 180 230 465 50 200
50/8 1.5 38 1 1 7.9 200 42 85 68 275
55/35 2.5 65 1.5 38 8.3 210 140 245 76 302
55/60 3 76 2 51 8.7 220 305 615 78 315
60/110 4 102 3 76 9.1 230 475 975 90 359
65/350 6 152 4 102 10.2 260 1250 2300 100 400
70/40 2.5 65 1.5 38 9.4 240 110 235 98 390
80/80 3 76 2 51 10 255 310 625 112 450

 

Materials Port Connections Motor
Casing SS 316L S-Line connections are standard. Bevel seat, I-line, ISO and other standard fittings are available. TE FC or Washdown enclosures available. Energy-efficient, Chem-duty, Explosion Proof and stainless steel also available, as well as single phase or three phase, 60 or 50 Hertz.
Front Cover SS 316L
Impeller SS 316L
Air Screw and Recirculation Pipe SS 316L
Back Plate SS 316L
Shaft SS 316L
Clamp Rings SS 304
Adaptor SS 304
Support SS 304
Shaft Seal

Standard:
Carbon/Silicon Carbide

Optional:
Silicon Carbide/Silicon Carbide
Elastomers

Standard:
FKM

 

Optional:
EPDM

Model 20/15

Unit Width Height
FRAME F1
in (mm)		 F2
in (mm)		 F3
in (mm)		 D
in (mm)		 A
in (mm)		 E
in (mm)		 L
in (mm)		 C
in
(mm)		 B
in
(mm)		 ZZ
in
(mm)		 OL
in
(mm)		 Z
in
(mm)		 X
in
(mm)		 Y
in
(mm)
145TC 3.75
(93.5)		 5.00
(127)		 10.25
(260.4)		 3.50
(88.9)		 5.50
(139.7)		 7.00
(177.8)		 9.46
(240)		 0.315
(8)		 5.98
(152)		 2.5
(63.5)		 2.0
(51.6)		 2.60
(66)		 8.47
(215)		 4.48
(190)
182TC 4.37
(111)		 4.50
(114.3)		 11.37
(288.8)		 4.50
(114.3)		 7.50
(190.5)		 8.00
(203.2)		 9.87
(250)		 7.01
(178)
184TC 5.50
(139.7)

NOTE: Dimensions are for guidance purposes only. Contact your SPX FLOW representative if more detailed measurements are needed.

SPX FLOW offers an on-line centrifugal pump selector tool, PUMP-FLO Connect. 
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W+ Series Centrifugal Pump Animation - APV