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Universal 1 Series - Positive Displacement Pumps

Product Type:
Pumps / Positive Displacement Pumps

The durable Waukesha Clean-out-of-Place (COP) Positive Displacement "Can-Do Pump". Versatile in application, its reliability has made it the industry standard worldwide.

Features

For more than half a century, Waukesha Cherry-Burrell® has been a leader in the design, manufacturing and application of external circumferential piston (ECP) style, rotary positive displacement pumps. Waukesha pumps are in service around the world and offer many key features, including:

  • 316L stainless steel body, cover, and shaft
  • Easy disassembly for COP cleaning
  • Elastomers that comply with FDA requirements
  • Aseptic models available
  • Meets 3-A sanitary standards

Long-life features:

  • Up to 200 psi (13.8 bar) pressure capability
  • No bearings in product zone
  • Heavy duty bearing frame with large diameter shafts
  • Grease lubed bearings for positive lubrication of all bearing over entire speed,
    temperature and pressure range
  • Non-galling Waukesha “88” alloy rotors standard; permits running at tighter
    clearances and pumping a wide range of viscosities
  • Remanufacturing and Inspect and Advise programs to extend life and reduce costs

Installation Features:

  • Bidirectional flow. Rotors, locked with double jam nuts, rotate securely in either direction.
  • No flow direction/shaft position specifications
  • Versatile 3-Way mounting of gear case, including vertical alignment of ports
  • Upper or lower shaft position
  • Easy to install or convert single o-ring to mechanical seals
  • Interchangeable installation dimensions with other Universal Series pumps
Theory of Operation

Time-tested Waukesha Cherry-Burrell® rotary pump; circumferential-piston operating principle


In the Waukesha Cherry-Burrell design, arc-shaped "pistons” (rotor wings) travel in annular-shaped cylinders machined in the pump body; the resulting long sealing path reduces slippage and produces a smooth flow of product without destructive pulses or pressure peaks and without valves or complex parts.

 

 

FOR LOW VISCOSITY FLUIDS

Rotors, made of Waukesha “88” alloy, can be run with close clearance to the 316L stainless steel fluid head, without galling or seizing should inadvertent pressure surges cause contact. The close clearances combined with the rotor geometry, which gives a long sealing path between the pump inlet and outlet, means low slip operation. As a result, you achieve: high efficiency, good priming ability, metering capability and good flow control.

 

 

 

FOR HIGH VISCOSITY FLUIDS

The large fluid cavities of the rotors, plus the large, easy entry anti-cavitation ports, allow efficient pumping of high viscosity fluids, slurries or even liquids with large chunks or
particles.

 

 

 

FOR NON-LUBRICATING AND ABRASIVE FLUIDS

The Waukesha Cherry-Burrell design has no bearings in the fluid being pumped, no sliding or rolling contact and no rotor-to-rotor contact. This produces EXCELLENT SERVICE LIFE even under severe operating conditions.

Key Applications

Food & Beverage

  • Soups, Stews, Tomato Pastes
  • Vegetables, Dressings
  • Chocolate, Fats & Oils
  • Batters, Cream Fillings
  • Brewery, Wort
  • Soft / Fruit Drinks
  • Meat Processing

 

 

Dairy

  • Cream, Milk
  • Cheese Curd & Whey
  • Cottage Cheese
  • Yogurt

 

 

Pharmaceutical / Cosmetics

  • Pill Pastes
  • Syrups, Extracts, Slurries
  • Face Creams & Lotions
  • Hair Styling Gels & Liquids
  • Dyes & Alcohols
  • Soaps
  • Cosmetics

 

 

Chemicals / Industrial

  • Solvents, Paints
  • Fuels
  • Resins, Polymers & Sludges
  • Oil & Lubricants
Specifications
MODEL DISPLACEMENT
PER REVOLUTION
NOMINAL
CAPACITY TO
MAXIMUM
PRESSURE
006-U1 0.0082 GAL. (0.031 Liter) 6 GPM (1.3 m³/hr.) 200 PSI (13.8 bar)
015-U1 0.0142 GAL. (0.054 Liter) 9 GPM (2.0 m³/hr.) 200 PSI (13.8 bar)
018-U1 0.029 GAL. (0.110 Liter) 17 GPM (3.8 m³/hr.) 200 PSI (13.8 bar)
030-U1 0.060 GAL. (0.227 Liter) 36 GPM (8.2 m³/hr.) 200 PSI (13.8 bar)
040-U1
0.076 GAL. (0.288 Liter)
45 GPM (10.2 m³/hr.)
150 PSI (10.3 bar)
060-U1 0.153 GAL. (0.579 Liter) 90 GPM (20.4 m³/hr.) 200 PSI (13.8 bar)
130-U1 0.254 GAL. (0.961 Liter) 150 GPM (34.1 m³/hr.) 200 PSI (13.8 bar)
220-U1 0.522 GAL. (1.976 Liter) 310 GPM (70.4 m³/hr.) 200 PSI (13.8 bar)
320-U1 0.754 GAL (2.854 Liter) 450 GPM (102 m³/hr.) 200 PSI (13.8 bar)
Dimensions

MODEL 006-U1

0-800 RPM speed range. 1½" port size; optional 1" port size available; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

    A AO B CP CP1 CP4 D E F G I J L O U X 2X

IN

4.75

8.30

3.75

12.04

13.47

15.25

5.50

1.94

2.31

.41,SLOT

7.66

2.93

9.61

4.21

0.875

3.49

6.97

MM

121

211

95

306

342

387

140

49

59

10,SLOT

194

74

244

107

22

89

177

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U1 to 030-U1, 1"-11-½ NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 60 lb. (27 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Pump Curve 95-07133 - Model 006-U1 || PDF
Model 006 Universal 1 SOLIDWORKS 3D || ZIP
Model 006 Universal 1 STEP 3D || ZIP

MODEL 015-U1

0-700 RPM speed range. 1½" port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

    A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
4.75
8.30
3.75
12.04
13.47
15.25
5.50
1.94
2.31
.41,SLOT
7.66
2.93
9.61
4.21
0.875
3.49
6.97
MM
121
211
95
306
342
387
140
49
59
10,SLOT
194
74
244
107
22
89
177

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 60 lb. (27 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 Model 015 - 95-07134 || PDF
Model 015 Universal 1 SOLIDWORKS 3D || ZIP
Model 015 Universal 1 STEP 3D || ZIP

MODEL 018-U1

0-600 RPM speed range. 1½" port size; 2" optional port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

    A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
4.75
8.30
3.75
12.46
13.90
15.67
5.50
1.94
2.31
.41,SLOT
7.66
2.93
9.84
4.21
0.875
3.55
7.09
MM
121
211
95
316
353
398
140
49
59
10,SLOT
194
74
250
107
22
90
180

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 64 lb. (29 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 Model 018 - 95-07135 || PDF
Model 018 Universal 1 SOLIDWORKS 3D || ZIP
Model 018 Universal 1 STEP 3D || ZIP

MODEL 030-U1

0-600 RPM speed range. 2" port size; suitable to 150 PSI (10 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

    A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
6.25
10.29
4.25
14.58
16.42
17.67
6.86
2.31
2.56
.41,SLOT
8.83
3.56
11.61
5.21
1.250
4.25
8.50
MM
159
261
108
370
417
449
174
59
65
10,SLOT
224
90
295
132
32
108
216

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 130 lb. (59 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Model 030 Universal 1 Series - 95-07136 || PDF
Model 030 Universal 1 SOLIDWORKS 3D || ZIP
Model 030 Universal 1 STEP 3D || ZIP

MODEL 040-U1

0-600 RPM speed range. 2½" port size; 3" optional port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

    A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
6.25
10.29
4.25
14.87
16.87
17.96
6.86
2.31
2.56
.41slot
8.83
3.56
11.99
5.21
1.25
4.31
8.62
MM
159
261
108
378
428
456
174
59
65
10 slot
224
90
305
132
31.75
109
219

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 140 lb. (64 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 and 2 Model 040 - 95-07241 || PDF
Model 040 Universal 1 SOLIDWORKS 3D || ZIP
Model 040 Universal 1 STEP 3D || ZIP

MODEL 060-U1

0-600 RPM speed range. 3" port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

    A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
8.25
15.31
5.87
18.91
20.69
22.07
9.56
3.50
4.12
.53
10.99
5.06
15.14
7.31
1.625
5.37
10.75
MM
210
389
149
480
526
561
243
89
105
13
279
129
385
186
41.28
136
273

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 285 lb. (130 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 Model 060 - 95-07137 || PDF
Model 060 Universal 1 SOLIDWORKS 3D || ZIP
Model 060 Universal 1 STEP 3D || ZIP

MODEL 130-U1

0-600 RPM speed range. 4" port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

    A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
8.25
15.31
5.87
19.85
21.63
23.01
9.56
3.50
4.12
.53
10.99
5.06
15.77
7.31
1.625
5.37
10.75
MM
210
389
149
504
549
584
243
89
105
13
279
129
401
186
41.28
136
273

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 305 lb. (138 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 Model 130 - 95-07138 || PDF
Model 130 Universal 1 SOLIDWORKS 3D || ZIP
Model 130 Universal 1 STEP 3D || ZIP

MODEL 220-U1

0-600 RPM speed range. 4" port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

   A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
8.50
19.13
9.00
23.37
--
27.87
12.38
3.75
7.25
.53,SLOT
14.80
6.38
18.49
9.38
2.00
6.63
13.25
MM
216
486
229
594
--
708
314
95
184
13,SLOT
376
162
470
238
50.80
168
337

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 565 lb. (256 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 Model 220 - 95-07139 || PDF
Model 220 Universal 1 SOLIDWORKS 3D || ZIP
Model 220 Universal 1 STEP 3D || ZIP

MODEL 320-U1

0-600 RPM speed range. 6", 150# flanged port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

 


 

   A AO B CP CP1 CP4 D E F G I J L O U X 2X
IN
12.00
22.38
11.63
30.17
--
--
13.88
5.25
8.00
.66
17.80
6.88
21.92
10.38
2.375
8.00
16.00
MM
305
568
295
766
--
--
353
133
203
17
452
175
557
264
60.45
203
406

CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U1 to 030-U1, 1"-11- NPT on Models 060-U1 and 130-U1.

Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings.

Approximate shipping weight 900 lb. (408 kg.)

NOTE: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed.

Universal 1 Model 320 - 95-07140 || PDF
Model 320 Universal 1 SOLIDWORKS 3D || ZIP
Model 320 Universal 1 STEP 3D || ZIP
Options

Body

Standard:  316L Stainless Steel, Body retaining screws

Options:

  • Flush taps for future double seals

Ports

Standard:  S-Line

Options:

  • Bevel Seat, I-Line, Q-Line; European DIN, SMS or RJT
  • Male NPT, 150 lb. & 300 lb. Flanges. (150 lb. standard on Model 320)
  • Rectangular Flange Inlet or Aseptic ports
  • Extended ports
  • Optional port sizes on 6, 18, 30 and 60 Models

Covers

Standard:  316L SS plain cover with 3-Wing cover nuts

Options:

  • Vent or drain connections
  • Aseptic, jacketed or vented
  • Hex cover nuts

Rotors

Standard:  Alloy 88 Twin Wing. Standard clearance for up to 180° F (82° C)

Options:

  • Hot clearance to 300° F (149° C)
  • Clearance above 300° F (149° C) on application
  • Special & front face clearances and slotted rotor hub for special applications
  • Single wing for 30, 60, 130 and 220 models for minimal particulate damage

O-Rings

Standard: Buna-N

Options:

  • Fluoroelastomer (FKM)
  • EPDM
  • Silicone
  • Perfluoroelastomer (FFKM)
  • FEP Encapsulates

Seals

Standard: Single Buna-N O-Rings with Zirconia sleeve

Options:

  • 316L SS sleeve
  • Double O-Ring Seal with Flush Connection
  • Single Mechanical Seal with Carbon (One Piece) vs. Ceramic Seal Faces
  • Double Mechanical Seal with outer Carbon Seal Face & Flush Connections
  • Ceramic, Chrome Oxide, Silicon Carbide Seal Faces
  • Two piece carbon inner seal

Gearcase

Standard: Cast iron powder coated, 316L SS shafts, top shaft position, stainless steel bearing retainers, left hand shaft position

Options:

  • Stainless Steel gearcase
  • Steel-It paint
  • 17-4 PH shafts
  • Lower shaft position
  • Bearing Isolators
  • Pedestal shims for side mounted pumps.
  • Right hand shaft position on side mounted gearcase

Bases

Standard: Flat plate, epoxy painted, with adjustable feet, SS coupling guard, and Lovejoy or Woods coupling

Options:

  • 304 SS unpolished plate base with adjustable feet
  • Portable base with rubber wheels
  • SS tubular bases

Drives

  • WCB ISR Integral Speed Reducer Sizes 49, 79 and 239
  • Direct connected gear motors

Tru-Fit®

Close coupled Tru-Fit® pump mounted on stainless steel base with stainless steel adaptors standard.

Features:

  • No shaft alignment necessary. No coupling guard required.
  • Special base design enhances cleanability.
  • Reduces overall length of complete unit by an average of 20-25%.
  • Average of 20-25 gear ratios available per horsepower.
  • Separate oil sump for gear reducer and timing gears.

Options:

  • 304 SS polished plate base.
  • NEMA or IEC frames available. Right angle reducer also available for additional space savings.
  • 1/2 through 60 horsepower drive options available.
  • Horizontal or vertical porting.
Performance

Click on the links below to download pump model performance curves for Universal 1 Series Positive Displacement pumps.

Download Instructions for Reading Positive Displacement Pump Curves || PDF

  • Universal 1 Series - Model 006 - Performance Curve - 95-07133 || PDF
  • Universal 1 Series - Model 015 - Performance Curve - 95-07134 || PDF
  • Universal 1 Series - Model 018 - Performance Curve - 95-07135 || PDF
  • Universal 1 Series - Model 030 - Performance Curve - 95-07136 || PDF
  • Universal 1 Series - Model 040 - Performance Curve - 95-07241 || PDF
  • Universal 1 Series - Model 060 - Performance Curve - 95-07137 || PDF
  • Universal 1 Series - Model 130 - Performance Curve - 95-07138 || PDF
  • Universal 1 Series - Model 220 - Performance Curve - 95-07139 || PDF
  • Universal 1 Series - Model 320 - Performance Curve - 95-07140 || PDF

 

Videos
WCB - Bearing housing maintenance for Universal 1 Series Positive Displacement Pumps
WCB - Fluid End maintenance for Universal 1 Series Positive Displacement Pumps
WCB - Shaft and Bearing assembly for Universal 1 Series Positive Displacement Pumps
WCB - Positive Displacement Pumps - How the rotors move inside the pump
Drawings & Models
2D Drawings - Sanitary Pumps
Model 014-U1
dwg pdf
Model 015-U1
dwg pdf
Model 018-U1
dwg pdf
Model 024-U1
dwg pdf
Model 030-U1
dwg pdf
Model 040-U1
dwg pdf
Model 060-U1
dwg pdf
Model 064-U1
dwg pdf
Model 130-U1
dwg pdf
Model 134-U1
dwg pdf
Model 220-U1
dwg pdf
Model 224-U1
dwg pdf
Model 320-U1
dwg pdf
Model 324-U1
dwg pdf
Model 420-U1
dwg pdf
Model 520-U1
dwg pdf
2D Drawings - Industrial Pumps
Model 030/049 ISR Industrial-U1
dwg pdf
Model 030/049 ISR Industrial Side Mount-U1
dwg pdf
Model 060/079 ISR Industrial-U1
dwg pdf
Model 060/079 ISR Industrial Side Mount-U1
dwg pdf
Model 130/079 ISR Industrial-U1
dwg pdf
Model 130/079 ISR Industrial Side Mount-U1
dwg pdf
Model 220/239 ISR Industrial-U1
dwg pdf
Model 220/239 ISR Industrial Side Mount-U1
dwg pdf
Stuffing Box Dimensions Industrial-U1
dwg pdf
Dimensional Drawing Industrial-U1
dwg pdf
3D Models
Model 006 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 006 Lower and Upper shaft STEP
zip
Universal 1 Model 015 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 015 Lower and Upper shaft STEP
zip
Universal 1 Model 018 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 018 Lower and Upper shaft STEP
zip
Universal 1 Model 030 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 030 Lower and Upper shaft STEP
zip
Universal 1 Model 040 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 040 Lower and Upper shaft STEP
zip
Universal 1 Model 060 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 060 Upper and Lower shaft STEP
zip
Universal 1 Model 130 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 130 Upper and Lower shaft STEP
zip
Universal 1 Model 220 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 220 Upper and Lower shaft STEP
zip
Universal 1 Model 320 Lower and Upper shaft SOLIDWORKS
zip
Universal 1 Model 320 Upper and Lower shaft STEP
zip
Downloads
Brochures
FH-1701 Universal 1 Series US DE ES PT
FH-1728 Pump Remanufacturing Program US
Flyers
FB-0006 Universal 1 Series Product Highlights US
FB-0011 Universal E-Pumps Product Highlights US
FB-0042 PD Pumps Spur Gears Product Features US
FB-0047 PD Pumps Specialized Product Features US
FB-0049 PD Pumps Coatings and Cases Product Features US
FH-1805 High Precision Pump Shaft Bearings US
FH-1912 Preventative Maintenance Checklist for PD Pumps US
Manuals
95-03002 Universal 1 Series US DE ES HU PT-BR
MM604 Sanitary Positive Displacement Pumps Engineering Manual US
Waukesha ISR - Integral Speed Reducer US
Parts List
PL5062 Universal 1 Pump Seal Kits Parts List US
Resources
Universal 1 PD Pump Seal Reference Chart US
Waukesha Cherry-Burrell's PD Pumps slash downtime and maintenance costs at the Fleur de Lait plant US
Morris National Case Study US
Success Stories
FB-0204 Pumps In Action - Egg Processing US
FB-0205 Pumps In Action - Fruit Filling US
FB-0206 Pumps In Action - Sweeteners and Bulk Food Transpor US
FB-0208 Pumps In Action - Ice Cream Mix US
FB-0218 Pumps In Action - Aloe Vera Gel US
FB-0300 Pumps In Action - Hydraulic Fracturing US
FB-0310 Pumps In Action - Ammonia Nitrate US