Williams Milton Roy Pumps» Visit Williams Milton Roy webSite
Williams Milton Roy pneumatic metering pumps are utilized in many industries to accurately control the injection of chemicals.
We stock many models manufactured by Williams Instruments as well as the spare parts for repairing the units. The pumps can be used for chemical injection (on-shore/off-shore), corrosion inhibitor solutions, anti-oxidant dosing, flavouring applications and pH adjustment solutions.
When used for in the industries dealing with Natural Gas, LPG & LNG, Williams units are used for the metering of corrosion inhibitors for instrument protection, methanol to prevent freezing, and odorant injection for public safety. The Off-shore industry uses the Williams pneumatic pumps for the metering of Oil and Gas corrosion inhibitors, emulsion breakers, oxygen scavengers, methanol injection and many other applications.
Designed for use in hazardous or explosion-proof environments complying with European 'ATEX' certification. In the Oil, Refining and Petrochemical industry, Williams instruments are used for the metering of chemicals in all phases of production, processing, refining, transmission and distribution of oil and gas products. Pumps can be offered with electronic automated process control for both single or multi head dosing applications.
Chemical Injection Pumps and Products :
- V Series : Dual Seal Plunger Metering Pump
- X Series : Dual Seal Plunger Metering Pump
- W Series : High Flow, High Pressure Plunger Metering Pump
- LD Series : Low Pressure Diaphragm Metering Pump
- Wilroy Series : Hydraulically Actuated Diaphragm
Williams 'V' Series Pneumatic Plunger Pumps
The Williams 'V' pump offers simple adjustment of the stroke rate and the stroke length providing 0-100% turn down over the pump volume range.
The 'V' series pneumatic chemical injection Plunger pump offers a dual seal plunger design and they offer flow rates of up to 34.75 litres per hour and operates to discharge pressures up to13,100 PsiG.
Download PDF Brochure| Model No @ Air/Gas Supply Pressure |
Max Volume GPH / LPH |
Volume Per Stoke |
Stroke Length |
Strokes Per Minute (Range) |
Max. Discharge Pressure PsiG / BarG |
Max Air Consumption (SCF per Day) |
|---|---|---|---|---|---|---|
| CP125V125 @ 100 PsiG |
0.07 /0 .27 | 0.1 c.c | 0.5" | 1-45 | 8650 / 596.4 | 180 |
| CP250V225 @ 100 PsiG |
0.57 / 2.16 | 0.8 c.c. | 1" | 1-45 | 7200 / 496.4 | 1150 |
| CP250V300 @ 100 PsiG |
0.57 / 2.16 | 0.8 c.c. | 1" | 1-45 | 13,100 / 903.2 | 2100 |
| CP500V225 @ 100 PsiG |
2.30 / 8.71 | 3.2 c.c | 1" | 1-45 | 1750 / 120.7 | 1150 |
| CP500V300 @ 100 PsiG |
2.30 / 8.71 | 3.2 c.c. | 1" | 1-45 | 3250 / 224.1 | 2100 |
| CRP500V400 @ 100 PsiG @ 150 PsiG |
2.30 / 8.71 2.30 / 8.71 |
3.2 c.c. 3.2 c.c. |
1" | 1-45 1-45 |
6300 / 434.4 9200 / 634.3 |
3584 5250 |
| CRP750V400 @ 100 PsiG @ 150 PsiG |
5.00 / 18.9 5.00 / 18.9 |
7.0 c.c. 7.0 c.c. |
1" | 1-45 1-45 |
2600 / 178.3 4000 / 275.8 |
3584 5250 |
| CRP1000V400 @ 100 PsiG @ 150 PsiG |
9.18 / 34.75 9.18 / 34.75 |
12.9 c.c. 12.9 c.c. |
1" 1" |
1-45 1-45 |
1520 / 104.8 2300 / 158.6 |
3584 5250 |
| CRP1000V600 @ 100 PsiG @ 150 PsiG |
9.18 / 34.75 7.11 / 26.91 |
12.9 c.c. 10.0 c.c. |
1" 1" |
1-45 1-35 |
3400 / 234.4 4700 / 324.0 |
7190 10210 |
| CRP1000V800 @ 100 PsiG @ 150 PsiG |
9.18 / 34.75 7.11 / 26.91 |
12.9 c.c. 10.0 c.c. |
1" 1" |
1-45 1-35 |
6300 / 434.4 9100 / 627.4 |
12342 18150 |
* This data should only be used to provide you with initial size selection. Contact Pump and Package for the performance graphs to allow varification of your pump selection.
Williams 'X' Series Pneumatic Plunger Pumps *
The Williams 'X' series dual seal plunger pump is also available up to the size of the CRP750-400. These units offer similar flowrates to the 'V' series, but the discharge pressures are lower. The 'X' series feature anodized aluminium oscillamatic controller® which means they are for non-corrosive applications.
Download PDF Brochure| Model No. @ Air/Gas Supply Pressure |
Max Volume GPH / LPH |
Volume Per Stroke |
Stroke Length |
Strokes Per Minute (Range) |
Max. Discharge Pressure PsiG / BarG |
Max. Air Consumption (SCF per Day) |
|---|---|---|---|---|---|---|
| CP125X125 @ 65 PSI / 4.5 BAR |
0.07 / 0.27 |
0.1 c.c |
0.5" |
1-45 |
5,000 / 344.8 |
180 |
| CP250X225 @ 65 PSI / 4.5 BAR |
0.57 / 2.16 |
0.8 c.c. |
1" |
1-45 |
4,100 / 282.7 |
1,150 |
| CP250X300 @ 65 PSI / 4.5 BAR |
0.57 / 2.16 |
0.8 c.c. |
1" |
1-45 |
6,500 / 448.2 |
2,100 |
| CP500X225 @ 90 PSI / 6.2 BAR |
2.26 / 8.55 |
3.2 c.c. |
1" |
1-45 |
1,300 / 89.6 |
1,150 |
| CP500X300 @ 90 PSI / 6.2 BAR |
2.26 / 8.55 |
3.2 c.c. |
1" |
1-45 |
2,550 / 175.7 |
2,100 |
| CRP500X400 @ 50 PSI / 3.5 BAR @ 90 PSI / 6.2 BAR |
2.26 / 8.55 2.26 / 8.55 |
3.2 c.c. 3.2 c.c. |
1" 1" |
1-45 1-45 |
2,900 / 203.9 5,400 / 379.7 |
3584 |
| CRP750X400 @ 50 PSI / 3.5 BAR @ 90 PSI / 6.2 BAR |
5.00 / 18.9 5.00 / 18.9 |
7 c.c. 7 c.c. |
1" 1" |
1-45 1-45 |
1,150 / 80.9 2,300 / 161.7 |
3584 |
* This data should only be used to provide you with initial size selection. Contact Pump and Package for the performance graphs to allow varification of your pump selection.
Performance table for 'W' Series Pneumatic Plunger Pump.*
Offering higher flowrates than the 'V' series the 'W' series pneumatic plunger pumps offer flow rates up to 336 litres an hour and are able to deal with discharge pressures up to 3450 PsiG.
As with the 'V' pump, the Williams 'W' series offers both the adjustment of the stroke rate and the stroke length providing 100 - 1 turndown of volume and all pumps can be multi-headed.
All Williams pneumatic plunger pumps can provide accuracies to +/- 0.5%.
Download PDF Brochure| Model No. @ Air/Gas Supply Pressure |
Max Volume GPH / LPH |
Volume Per Stroke |
Stroke Length |
Strokes Per Minute (Range) |
Max. Discharge Pressure PsiG / BarG |
Max. Air Consumption (SCF per Day) |
|---|---|---|---|---|---|---|
| CRP1500W400 @150 PsiG |
22.90 / 86.40 |
36 c.c |
1 1/4" |
1-40 |
600 / 41 |
11,543 |
| CRP1500W600 @ 150 PsiG |
22.90 / 86.40 |
36 c.c. |
1 1/4" |
1-40 |
1950 / 134 |
26,000 |
| CRP1500W800 @ 150 PsiG |
22.90 / 86.40 |
36 c.c. |
1 1/4" |
1-40 |
3450 / 238 |
46,000 |
| CRP2250W600 @ 150 PsiG |
90.00 / 336.00 |
160 c.c. |
2 1/2" |
1-35 |
900 / 62 |
46,000 |
| CRP2250W800 @ 150 PsiG |
90.00 / 336.00 |
160 c.c. |
2 1/2" |
1-35 |
1800 / 124 |
81,000 |
* This data should only be used to provide you with initial size selection. Contact Pump and Package for the performance graphs to allow varification of your pump selection.
'CLD' Series Pneumatic Diaphragm Pumps *
The low pressure 'LD' diaphragm metering pumps offer flow rates up to 170.3 litres per hour at 100 PsiG. Diaphragm metering pumps are fitted with Teflon diaphragms as standard and can be supplied with bodies manufactured from 316 Stainless Steel or Teflon c/w check valves.
Standard wetted parts for the 'LD' series are all Teflon Diaphragms with either 316 Stainless Steel or Teflon fluid ends.
Download PDF Brochure| Model No. @ Air/Gas Supply Pressure |
Maximum Volume GPH / LPH |
Max. Discharge Pressure PsiG / BarG |
Strokes Per Minute |
Volume Per Stroke |
Max. Air Consumption (SCF per Day) |
|---|---|---|---|---|---|
| CLD100-316-TFE @ 100 PsiG |
0.75 / 2.8 |
80 / 5.52 |
1-45 |
1.0 c.c. |
20 |
| CLD100-TFE-TFE @ 100 PsiG |
0.75 / 2.8 |
75 / 5.17 |
1-45 |
1.0 c.c. |
20 |
| CLD200-316-TFE @ 100 PsiG |
10.0 / 37.8 |
98 / 6.76 |
1-45 |
14.0 c.c. |
255 |
| CLD200-TFE-TFE @ 100 PsiG |
10.0 / 37.8 |
93 / 6.41 |
1-45 |
14.0 c.c. |
255 |
| CLD400-316-TFE @ 100 PsiG |
45.0 / 170.3 |
93 / 6.41 |
1-45 |
63.0 c.c. |
1200 |
| CLD400-TFE-TFE @ 100 PsiG |
45.0 / 170.3 |
90 / 6.20 |
1-45 |
63.0 c.c. |
1200 |
* This data should only be used to provide you with initial size selection. Contact Pump and Package for the performance graphs to allow varification of your pump selection.
'Wilroy' Series Pneumatic Diaphragm Pumps *
Williams and Milton Roy have combined technologies to design a pump, blending the proven mRoy® hydraulic by-pass diaphragm design with the Williams "V" Series pump. The result is the low volume, high turndown characteristics of a pneumatic drive coupled with the chemical containment and high pressure capabilities of a hydraulically actuated diaphragm Body materials are 316 stainless steel, c/w diaphragm PTFE and features an integral relief valve.
The Williams WRB pumps have the option of rupture detection on the diaphragm, making the unit safer to use in environmentally sensitive areas that need to be leak free.
The Wilroy series comply with european ATEX hazardous area certification.
Animated Typical Installation (External Link)
Download PDF Brochure
| Model No. @ Air/Gas Supply Pressure |
Maximum Volume GPH / LPH |
Max. Discharge Pressure PsiG / BarG |
Strokes Per Minute |
Volume Per Stroke |
Max. Air Consumption (SCF per Day) |
|---|---|---|---|---|---|
| WILROY 2M @ 100 PsiG |
0.54 / 2.04 | 3000/207 | 1-45 | .8 c.c. | 2068 |
| WILROY 5M @ 100 PsiG |
2.25 / 8.51 | 3000/207 | 1-45 | 3.2 c.cc | 2068 |
| WILROY 754 @ 100 PsiG |
5.0 / 18.9 | 2500/172 | 1-45 | 7.3 c.c. | 3548 |
| WILROY 104 @ 100 PsiG |
9.08 / 33.37 | 1600/110 | 1-45 | 11.5 c.c. | 3548 |
| WILROY 106 @ 100 PsiG |
9.08 / 33.37 | 3000 / 207 | 1-45 | 11.0 c.c. | 7190 |
* This data should only be used to provide you with initial size selection. Contact Pump and Package for the performance graphs to allow varification of your pump selection.
Accessories
Williams Milton Roy offer various accessories to complement their range of pump components such as controllers, relays, filters and regulators etc. Please click on the links below to see examples of these:
Click to download PDF
- Williams 'V' Series Pneumatic Plunger Pumps
- Williams 'X' Series Pneumatic Plunger Pumps
- 'W' Series Pneumatic Plunger Pump
- 'CLD' Series Pneumatic Diaphragm Pumps
- 'Wilroy' Series Pneumatic Diaphragm Pumps
- Automatic Processing Unit - APU
- Oscillimatic Controllers
- Pressure Control Valves - Pressure Regulator
- Micro Flow switch
