Enhancing Multi-Stage Pump Performance with a Compact Single-Stage Design
Miaofeng API 610, OH6 Pumps are specifically designed for demanding applications in industries such as hydrocarbon, chemical, petrochemical, power generation, gas production, and specialty processing.
With Miaofeng’s innovative integrally gear driven pump design, efficiency can be optimized along with curve shape, NPSH (Net Positive Suction Head), runout horsepower and radial loading. This ensures cost-effective and reliable operation by utilizing different combinations of impeller, diffuser, and inducer geometry.
These pumps are available in either LMV (Line Mounted Vertical) or BMP (Base Mounted Pump) configurations. Despite being single-stage units of small size, they deliver multi-stage performance.
Safe, reliable, and cost-effective, the Miaofeng API 610 OH6 Integrally Geared Pump is designed for critical high-head, low-flow applications in the hydrocarbon, chemical, petrochemical, power generation, gas production, and specialty processing industries. These pumps are known for their ability to handle high suction pressure and operate within a wide temperature range.
Unlike traditional multi-stage pumps, Miaofeng’s custom hydraulics ensure that the best efficiency point (B.E.P.) aligns with the rated point for optimal efficiency. This also reduces horsepower at the end of the curve and allows for smaller driver sizes, resulting in energy savings.
Key Specifications:
– Flow capacity: Up to 400 gpm (91 m³/hr)
– Head capacity: Up to 4,800 ft (1,400 m)
– Suction Pressure: 1,000 psi (71 kg/cm²)
– Temperature Range: -200 to 650°F (-130 to 340°C)
The vertical configuration of Miaofeng’s integrally geared pump line is specifically designed to save space in refineries as well as NGL production plants and petrochemical/chemical facilities.
Applications:
– Feed pumps
– Booster pumps
– Bottoms pumps
– Wash water pumps
– Reflux pumps
– Condensate pumps
Available in both Line Mounted Vertical (LMV) or Base Mounted Pump (BMP) configurations. Each model offers multi-stage performance despite being a single-stage unit.
Proven to be reliable, safe, compact, and efficient, Miaofeng L3 OH6 integrally geared pumps offer several operational benefits. These pumps are single-stage, vertical in-line overhung pumps designed according to ISO 13709/API 610 OH6 recommendations for integrally geared pumps. They maximize uptime and save space as they are only 25% the size of competing horizontal pumps. Additionally, they are ATEX certified and can operate continuously for five years without requiring any overhaul. The use of Barske impeller low NPSH technology ensures optimal performance while the pump engineering is optimized to meet the BEP (Best Efficiency Point), resulting in energy savings through improved efficiency.
Metric 50 Hz
- Heads to 1,400 m
- Flows to 91 m3/hr
- Standards API 610
- Maximum Motor Power 250 kW
- Temperature Range -130 to 340°C
- Maximum Case Working Pressure 155 kg/cm2
- Maximum Suction Pressure 71 kg/cm²
- Differential Head 1,921 m
- Maximum Viscosity 750 cp
- Solids Range 0.381mm, 400 microns
- Mounting Configuration Vertical, Horizontal
- Seal Configurations Single, Double, Tandem
- Available Inducer Yes
- Available Flanges 600# ANSI RF, 900# optional
- Suction and Discharge Size 3″ x 2″
- API Plans 11, 12, 13, 21, 23, 31, 32, 41, 52, 53, 54, 61, 62, J
L3 BUILD CODES
A
E
J
O (1)
W
API 610 BUILD (2)
S-5 (3)
A-7 (4)
S-8 (4)
N/A
S-9 (4)
Pump Case
C.S.
316 SS
C.S.
316 SS
Monel Clad C.S.
Case Studs
B-7
B-7
B-7 B-8M K-Monel
Seal Housing
C.S.
316 SS
C.S. 316 SS Monel
Separator
316 SS
316 SS
316 SS
316 SS
Monel
Diffuser Insert
C.S.
316 SS
316 SS 316 SS Monel
Diffuser Cover
C.S.
316 SS
316 SS 316 SS Monel
Impeller
316 SS
316 SS
316 SS
316 SS
Monel
Impeller Bolt
316 SS
316 SS
316 SS 316 SS K-Monel
Inducer
316 SS
316 SS
316 SS
316 SS
Monel
Tab Washer
316 SS
316 SS
316 SS
316 SS
Monel
Shaft Sleeve
316 SS
316 SS
316 SS
17-4 PH
Monel
Throttle Bushing
316 SS
316 SS
316 SS 316 SS Monel
Metal Seal Parts
316 SS
316 SS 316 SS 316 SS
Monel
Stationary Face
Binderless Carbon or Silicon Carbide
Rotating Face
Tungsten Carbide with Cobalt or Nickel Binder Shaft (all)
4140 Steel to 0° F, 15-5PH from 0° F to –240° F.
O-rings
As Required
- “O” build temperature range 0° to -240° F. Pressure capability is reduced due to strain hardened pump case studs. Contact Application Engineering.
- See Miaofeng Corporation exceptions/clarifications to API 610, 11th edition for material requirements of pump parts.
- Impeller is upgraded to 316SS. A seal gland is not required because the seals mount in the seal housing. O-rings are used instead of a case gasket.
- A seal gland is not required because the seals mount in the seal housing. The pump shaft is AISI 4140 because it is not exposed to the fluid. O-rings are used instead of a case gasket.
