Products

Motor Driven Diaphragm Pumps

ProMus Series


High Pressure Chemical Process Metering

The ProMinent® ProMus is a motor driven metering pump with a hydraulically actuated Teflon diaphragm. The plunger and diaphragm are hydraulically coupled and are precisely controlled by a mechanically actuated replenishment valve, which senses diaphragm position to admit coupling fluid as needed. The coupling fluid is continuously degassed to maintain accuracy. The drive case is protected from overload by a simple acting relief valve. The movement of the diaphragm depends on the amount of liquid displaced by the plunger.

Applications

  • Chemical process applications
  • Boiler feed and Catalyst feed
  • Petrochemical applications
  • Low flow - high pressure applications
  • Heavy industrial applications
  • Water and wastewater treatment
  • Sodium hypochlorite (Bleach) feed applications
  • Dye injections

Features

  • Hydraulically actuated diaphragm ensuring a sealed pumping system for corrosive or toxic chemicals with superior leak protection
  • Built in accordance to API 675 standards suitable for heavy industrial applications and specifications
  • Flexible design for a wide range of applications including water treatment and high pressure chemical refining
  • Fast and Easy field maintenance with minimal downtime
  • Available in PVDF, Stainless Steel, Alloy 20 and Hastelloy C liquid end materials

Technical Data

Capacity Data

Capacity at Max. Backpressure 60 Hz (1750 rpm) Max. Stroke Rate Capacity at Max. Backpressure 50 Hz (1458 rpm) Typical suct./dis. Connection
Plunger (in.) psig (PVDF) Bar (PVDF) psig  (metal) Bar (metal) GPH (l/h) Gear Ratio Stroke/ min. GPH (l/h) Stroke/ min. Bar (metal) FNPT/ BSP (metal) MNPT/ BSP (PVDF)
Size 17 3/8” 230 16 3500 241 0.2 (0.87) 100 18 - - - - - -
3/8” 230 16 3500 241 0.61 (2.3) 50 35 - - - - - -
3/8” 230 16 3500 241 0.76 (2.8) 40 43 0.63 2.45 36 241 1/4 1/4
3/8” 230 16 3500 241 1.02 (3.8) 30 58 0.85 3.29 48 241 1/4 1/4
3/8” 230 16 3500 241 2.03 (7.6) 15 115 1.69 6.56 96 241 1/4 1/4
3/8” 230 16 3500 241 2.44 (9.2) 12.5 138 2.03 7.88 115 241 1/4 1/4
7/16” 230 16 3500 241 0.83 (3.1) 50 35 - - - - - -
7/16” 230 16 3500 241 1.04 (3.9) 40 43 0.87 3.36 36 241 1/4 1/4
7/16” 230 16 3500 241 1.38 (5.2) 30 58 1.15 4.46 48 241 1/4 1/4
7/16” 230 16 3500 241 2.77 (10.4) 15 115 2.31 8.94 96 241 1/4 1/4
7/16” 230 16 3500 241 3.32 (12.5) 12.5 138 2.77 10.72 115 241 1/4 1/4
Size 30 5/8” 230 16 2080 143 1.8 (6.8) 50 35 - - - - - -
5/8” 230 16 2080 143 2.2 (8.5) 40 43 1.87 7.26 36 143 1/4* 1/2
5/8” 230 16 2080 143 3.0 (11.3) 30 58 2.50 9.68 48 143 1/4* 1/2
5/8” 230 16 2080 143 6.0 (22.7) 15 115 5.00 19.37 96 143 1/4* 1/2
5/8” 230 16 2080 143 7.2 (27.2) 12.5 138 6.00 23.24 115 143 1/4* 1/2
13/16” 230 16 1230 85 3.0 (11.5) 50 35 - - - - - -
13/16” 230 16 1230 85 3.8 (14.3) 40 43 3.17 12.27 36 85 3/8 1/2
13/16” 230 16 1230 85 5.1 (19.1) 30 58 4.22 16.37 48 85 3/8 1/2
13/16” 230 16 1230 85 10.1 (38.2) 15 115 8.45 32.73 96 85 3/8 1/2
13/16” 230 16 1230 85 12.2 (46.1) 12.5 138 10.14 39.28 115 85 3/8 1/2
1-1/8” 230 16 640 44 6.3 (24.0) 50 35 - - - - - -
1-1/8” 230 16 640 44 7.9 (30.0) 40 43 6.61 25.61 36 44 3/8 1/2
1-1/8” 230 16 640 44 10.6 (40.1) 30 58 8.81 34.14 48 44 3/8 1/2
1-1/8” 230 16 640 44 21.1 (79.8) 15 115 17.62 68.29 96 44 3/8 1/2
1-1/8” 230 16 640 44 25.4 (96.1) 12.5 138 21.15 81.95 115 44 3/8 1/2
Size 40 1-3/4” 230 16 265 18 15.4 (58.2) 50 35 - - - - - -
1-3/4” 230 16 265 18 19.2 (72.6) 40 43 15.99 61.97 36 18 3/4 3/4
1-3/4” 230 16 265 18 25.6 (96.9) 30 58 21.32 82.62 48 18 3/4 3/4
1-3/4” 230 16 265 18 51.2 (193.8) 15 115 42.64 165.24 96 18 3/4 3/4
1-3/4” 230 16 265 18 61.4 (232.4) 12.5 138 51.17 198.29 115 18 3/4 3/4
2” 200 14 200 14 20.1 (76.0) 50 35 - - - - - -
2” 200 14 200 14 25.1 (95.0) 40 43 20.89 80.94 36 14 3/4 3/4
2” 200 14 200 14 33.4 (126.4) 30 58 27.85 107.91 48 14 3/4 3/4
2” 200 14 200 14 66.8 (252.8) 15 115 55.70 215.83 96 14 3/4 3/4
2” 200 14 200 14 80.2 (303.5) 12.5 138 66.84 258.99 115 14 3/4 3/4
2-1/4” 160 11 160 11 25.4 (96.1) 50 35 - - - - - -
2-1/4” 160 11 160 11 31.7 (119.9) 40 43 26.43 102.43 36 11 3/4 3/4
2-1/4” 160 11 160 11 42.3 (160.1) 30 58 35.25 136.58 48 11 3/4 3/4
2-1/4” 160 11 160 11 84.6 (327.8) 15 115 70.49 273.16 96 11 3/4 3/4
2-1/4” 160 11 160 11 101.5 (384.2) 12.5 138 84.59 327.79 115 11 3/4 3/4
- not available for 50 Hz operation *ProMus30ASS2 Identity Code have a 1/4" FNPT outlet and a 3/8" FNPT Inlet

Brochures

Cut Sheet: ProMus Pump | Part #: 7750218 | Updated: 12/4/13

Catalog Section

Catalog: Motor Driven Pumps Catalog Section | Part #: xxxxxx | Updated: 10/14/16

Instructional Videos

Video: ProMus Pump Overview | Part #: xxxxxx | Updated: 7/24/14
Video: ProMus_overview | Part #: xxxxxx | Updated: 3/4/11
Video: Pump Accessories (WEBINAR) | Part #: xxxxxx | Updated: 1/10/14

Manuals And Instructions

Manual: ProMus O&M | Part #: 7500436 | Updated: 6/5/12

Frequently Asked Questions

Standard Lead Times for Products / Expediting

Standard lead times are listed below. If you need an order expedited, please contact your customer service representative. Please be aware that overnight shipments receive priority over ground shipments. Gala/Beta/Concept - 3 days Sigma series - 5 days ProMus - 2 weeks Dulcometer 3-4 days

When discharging to atmosphere, what steps will improve repeatability of dosing?

Installing a spring in the discharge valve of the pump gives some improvement, but for the maximum improvement, a backpressure valve should be installed at the end of the line.

Can I turn down a ProMus pump below 30% stroke length?

(YES) because the diaphragm is completely supported with hydraulic oil you can turn down the ProMus pump below 30%. There are some limitations though and it depends on the size of the pump and the pressure. Please contact ProMinent for Performance Graphs for each pump size.

Can I use a Variable speed motor for a ProMus pump?

(NO) because this pumps has internal mechanically actuated valving for the hydraulics and they are pressure dependent. We have found that when you use a variable speed motor it loses torque at lower RPMs. This can cause several problems such as: Not restarting after a stalled condition, Loss of flow or intermittent flow at lower RPMs, overheating of motors.

Can I change the size of the liquid end without changing the entire pump?

(YES) the ProMus pump uses a common drive case for all pumps. There are (5) different gear ratios. Each of the 8 plunger body?s and 3 liquid end can be changed.

Can I pump High Viscosities or off gassing materials or combustible materials with the ProMus pump?

(NO)

Can I rebuild a ProMus pump drive in the field?

(NO) the gearing in a ProMus pump requires a hydraulic press to insert the output shaft into the eccentric at a .002 precise position. If this tolerance is not kept the brass gear can strip the teeth.

Can I use Teflon tape to seal leaking valves on a ProMus pump?

(NO) the threads on the valves of a ProMus are a straight loose fit thread. This prevents gulling, the use of a .030 Teflon seal is used between the capturing areas on the parts and the valve torque is minimal as not to tear the small Teflon seal. This can hold in excess of 3000 Psi.

Can I reuse the diaphragm after being removed from a ProMus pump?

(NO) the special machined liquid end and plunger body capture the diaphragm and crush the outer edges of the diaphragm allowing it to clod flow into the sealing grooves. Diaphragms must be replaced.

Can I flush the drive case with solvent after being contaminated with chemical because of a broken diaphragm?

(YES) Depending on the chemical, and the amount of time the drive was exposed you can usually just flush the drive with solvent or a mild detergent and allow to dry thoroughly before re-commissioning. Check the teeth of the drive gears for pitting and bearing noise.

Can I re-prime the hydraulic system myself in the field?

(YES) there are videos on U Tube of diaphragm replacement and Priming the hydraulic system.

Can I use the internal pressure relief to regulate process pressure?

(NO) there internal relief is designed to protect the pump and diaphragm only. Always use a external Back Pressure and pressure relief valve set below the internal pressure relief of the pump. If the pump runs in internal relief for longer than 24 Hrs. you need to must replace the diaphragm to prevent rupturing.