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  6. Wilden 51 mm (2") Pro-Flo® SHIFT Series Bolted Metal AODD Pump

Wilden 51 mm (2") Pro-Flo® SHIFT Series Bolted Metal AODD Pump

The Wilden 51 mm (2") Pro-Flo® SHIFT Series Bolted Metal AODD Pump is a high-performance air-operated double-diaphragm (AODD) pump designed to set a new standard in efficiency, reliability, and ease of maintenance.

CATEGORY: Pumps
BRAND: Wilden
TYPE: Equipment

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The Wilden 51 mm (2") Pro-Flo® SHIFT Series Bolted Metal AODD Pump is a high-performance air-operated double-diaphragm (AODD) pump designed to set a new standard in efficiency, reliability, and ease of maintenance. Featuring a bolted construction, this pump delivers superior flow rates—up to 35% higher than competing models—thanks to an optimized flow path design. It offers enhanced diaphragm life, minimizing downtime and operating costs. With a bolt-down footprint and identical inlet/discharge connections to Wilden’s clamped counterparts, installation and replacement are seamless. Engineered for enhanced containment and durability, it is ideal for demanding industrial applications.

  • Connection Options:

    • Threaded inlet/discharge liquid connections in NPT or BSPT (PS820).
    • Optional DIN or ANSI flanged connections (PS830) requiring no welding or nipple attachments.

  • Pro-Flo® SHIFT Air Distribution System (ADS):

    • Energy-efficient design reduces air consumption.
    • Higher flow rates, delivering more gallons per standard cubic feet per minute (SCFM).

  • Performance and Efficiency:

    • Lower energy and air usage, optimizing operational costs.
    • Large internal passages for superior flow capacity.
    • High-lift suction and enhanced chemical compatibility for versatile applications.

  • User-Friendly Design:

    • Submersible and portable for maximum flexibility.
    • Simplified servicing and maintenance with adjustable internal manifolds.
    • Reliable on/off operation and extended Mean Time Between Repairs (MTBR).

Connections:

  • Air Inlet: 3/4" FNPT
  • Liquid Inlet: 51 mm (2")
  • Liquid Discharge: 51 mm (2")
  • Connection Types:
    • NPT/BSPT (Threaded)
    • DIN/ANSI (Flanged)

Performance Characteristics:

  • Maximum Flow Rate:

    • Rubber: 685 lpm (181 gpm)
    • EZ-Install TPE: 668 lpm (176 gpm)
    • Full-Stroke PTFE: 655 lpm (173 gpm)

  • Maximum Pressure: 8.6 bar (125 psi)

  • Maximum Diameter Solids: 6.4 mm (1/4")

Suction Lift Capability:

  • Rubber: 7.1 m (23.3') Dry, 9.0 m (29.5') Wet
  • EZ-Install TPE: 7.0 m (23.1') Dry, 9.0 m (29.5') Wet
  • Full-Stroke PTFE: 6.6 m (21.8') Dry, 9.0 m (29.5') Wet

Displacement Per Stroke:

  • Rubber: 2.8 L (0.73 gal)
  • EZ-Install TPE: 2.6 L (0.70 gal)
  • Full-Stroke PTFE: 2.5 L (0.65 gal)

Note: 1 cycle = 2 strokes

ITEM

METRIC

(mm)

STANDARD

(inch)

A

453

17.9

B

48

1.9

C

358

14.1

D

630

24.8

E

670

26.4

F

62

2.4

G

346

13.6

H

48

1.9

J

177

7.0

K

366

14.4

L

687

27.1

M

324

12.8

N

257

10.1

P

229

9.0

R

254

10.0

S

14

0.6

ITEM

METRIC

(mm)

STANDARD

(inch)

A

452

17.8

B

64

2.5

C

367

14.3

D

620

24.4

E

658

25.9

F

58

2.3

G

354

14.0

H

48

1.9

J

178

7.0

K

366

14.4

L

359

14.2

M

687

27.0

N

679

26.8

P

305

12.0

R

254

10.0

S

229

9.0

T

254

10.0

U

15

0.6

 

PS820/PS830 METAL RUBBER-FITTED 

Max. Flow Rate: 685 Ipm (181 gpm)
Max. Inlet Pressure: 8.6 bar (125 psig)
Max. Solids Passage: 6.4 mm (1/4")
Suction Lift: 6.5 m Dry (21.8') AL, 9.0 m Wet (29.5') AL, 7.1 m Dry (23.3') SS, 8.6 m Wet (28.4') SS, 7.1 m Dry (23.3') Iron, 9.0 m Wet (29.5') Iron 

PS820/PS830 METAL FULL-STROKE PTFE-FITTED

Max. Flow Rate: 655 Ipm (173 gpm)
Max. Inlet Pressure: 8.6 bar (125 psig)
Max. Solids Passage: 6.4 mm (1/4")
Max. Suction Lift: 6.1 m Dry (20.0') AL, 9.0 m Wet (29.5') AL, 6.4 m Dry (21.0') SS, 8.6 m Wet (28.4') SS, 6.6 m Dry (21.8') Iron, 9.0 m Wet (29.5') Iron 

Wetted Housings

MATERIAL SHIP WEIGHT
Aluminum 47 kg (104 lb) (PS820)
54 kg (118 lb) (PS830)
Stainless Steel  73 kg (161 lb) (PS820)
81 kg (178 lb) (PS830)
Ductile Iron 71 kg (156 lb) (PS820)
82 kg (181 lb) (PS830)

Non-Wetted Housings

DESCRIPTION MATERIAL
Center Section Aluminum, Polypropylene, Stainless Steel
Air Valve Aluminum, Anodized Aluminum, Polypropylene, Stainless Steel
 Air Chamber Aluminum, Stainless Steel

 

MATERIAL TEMPERATURE LIMITS
Buna-N -12°C to 82°C (10°F to 180°F)
EPDM -51°C to 138°C (-60°F to 280°F)
FKM -40°C to 177°C (-40°F to 350°F)
Geolast® -40°C to 82°C (-40°F to 180°F)
Neoprene -18°C to 93°C (0°F to 200°F)
PTFE* 4°C to 104°C (40°F to 220°F)
Polyurethane -12°C to 66°C (10°F to 150°F)
Saniflex™ -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ -40°C to 107°C (-40°F to 225°F)

* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only

  • Spare Parts
  • Equalizer® Surge Dampeners - SD Series
  • Wil-Gard™ Diaphragm Monitoring System
  • Pump Cycle Monitor

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