LMV & BMP Sundyne Pumps

Company ENCE GmbH carries out engineering and integration of pumps in production process, supply and service maintenance of pumps and spare parts.

Standard mechanical seals. The seal body is machined in such a way that any sealing configurations and additional sealing systems can be mounted in it. The gearbox is equipped with an internal forced-feed lubrication system.

The body can be made of any alloys subjected to machining. A separate diffuser insert allows optimal interchangeability. Efficient thrust bearings for high-speed operation and suction pressure up to 70 ATMG.

In addition, we offer a special nozzle for the impeller (inducer), which allows you to reduce the requirements for NPSH to 70%.

Technical characteristics of Sundyne pumps LMV and BMP series

Series	Hz	Output up to	Head up to	RPM	Engine power, max	Pump casing operating pressure, max	Suction pressure, max	Temperature range
LMV-802	50	34 m3/h	64 m	1450 and 2960	37 kW	101 barg	42 barg	От -130° -340°С
LMV-806	50	86 m3/h	232 m	1450 and 2960	55 kW	50 barg	39 barg	От -40° -175°С
LMV-801	50	86 m3/h	219 m	1450 and 2960	55 kW	152 barg	70 barg	От -130°- 340°С
LMV-322	50	52 m3/h	915 m	5000-14200	37 kW	101 barg	32 barg	От -130°-340°С
LMV/BMP-311	50	91 m3/h	1921 m	4800-23700	150 kW	152 barg	70 barg	От -130° -340°С
LMV/BMP-331	50	91 m3/h	1921 m	9400-23800	315 kW	152 barg	70 barg	От -130° -340°С
LMV/313	50	236 m3/h	546 m	4800-12800	150 kW	101 barg	35 barg	От -130° -340°С
LMV-333	50	227 m3/h	915 m	8800-12900	315 kW	101 barg	35 barg	От -130° -340°С
LMV/BMP-341	50	91 m3/h	1921 m	9853-25000	315 kW	152 barg	35 barg	От -130° -340°С
BMP-338	50	250 m3/h	854 m	8800-12900	315 kW	101 barg	35 barg	От -130° -340°С

Gearboxes

Properties

1. Reliable, proven device.
2. Excellent design, manufacturing, and quality.
3. Output shaft on flat or swing support bearings.
4. The high-speed shaft assembly is designed to provide a minimum ratio between the length and overhang of the shaft.
5. Autonomous lubrication system.
6. Ability to replace the gearbox.
7. Reduction of radial load. Low vibration

Reliable uninterrupted operation is ensured by the built-in lubrication system, which operates with adjustable consumption of the oil which is pressure-feed on bearings and gears. The lubrication system includes a settler, an internal positive displacement pump driven by a low speed shaft, and an internal oil filter. Additional items such as an auxiliary oil pump (required for some configurations), a heat exchanger (water or air), pressure/temperature switches, a vibration detection system, etc. can also be delivered.

• Simplified maintenance;
• Reduced downtime;
• The possibility of more productive use of spare parts for maintenance.

Pumps

Single-stage pumps

• Multi-stage performance in single-stage simplicity
• Compact size
• Facilitate service

Hydraulic system on request

• Computer optimization of equipment to clearly meet the required parameters
• Reduced requirements of power at the end of the curve
• Improved efficiency
• Minimizing radial loads

Reducing the number of elements in contact with the liquid

• Reducing the cost of manufacturing items from special materials

Unified seal body

• The same body is used in the design for single, double or tandem seals.
• Convenient conversion on site.

Large clearances

• Nominal clearances of 0.030 in (0.076 mm) eliminate the need for the use of gaskets between the impeller and the casing.
• Reducing the number of wearing parts.
• No reduction in performance; maintenance of initial efficiency.
• Ability to work in dry mode, the ability to eliminate technological failures through the use of double seals.
• No need for mechanical adjustment.

Stability of performance

• Z Series equipment provides an increasing working curve till shutdown.
• The minimum flow rate is 15% of BEP (best efficiency point).

Special structural elements

• Increased NPSHR performance
• Reduction of wearing parts
• Specific suction design for operation without cavitation
• Increased specific suction speed

Replaceable diffusers (except LMV-322)

• Allow a simple transformation on the object, if adaptation to technological modifications is required.

Highly resistant casing

• Standard 600 inch flanges (for models LMV-313 and 333 can be supplied 900 inch flanges).

Axial seal (for LMV-313/333 and ВМР-338)

• Patented non-contact axial seal minimizes leakage with large radial clearances.
• Retains temporary suction loss without seizing.

Internal centrifugal separator

• Available on most models
• Built-in pump casing
• Provides a clean rinse to increase the seal life

Economical installation

• Most models can be supplied in vertical or horizontal versions to meet specific site requirements.

Technical characteristics of Sundyne pumps LMV / BMP series

Computer Optimization of Hydraulic Characteristics

Hydraulic characteristics for special order.

Unlike conventional multistage pumps, in the LMV pumps due to the computer calculation of hydraulic characteristics the best efficiency point (BEP) is provided with the required parameters where it is required in each specific case. As a result, optimum efficiency, minimal recirculation and minimal vibration are ensured. In addition, the power factor is shortened at the end of the curve, which allows reducing the size of the drive.

NPSH Features

To meet certain characteristics of NPSH, it may be necessary to fulfill costly design requirements, for example, lifting suction devices and installing make-up pumps. The use of special patented inducers for the supply of liquid to impeller makes it possible to significantly reduce or even completely eliminate such costs.

Materials

Notes

1. It does not come with LMV-322
2. ASTM grade A494 CW7M is equivalent to alloy C
3. Only for full issue
4. Registered Trademark
5. For LMV-322 only
6. For ВМР-322 only
7. Other options are available
8. On the case 400 l/s the top cell is of screwed type
9. On the case of 400 l/s, the upper bearings are of box type
10. ** Analogue of API +316SS with 12% chrome

BMP-338 Pump

Cross-section of the pump and gearbox (with single seal)

LMV-311 Pump

Cross-section of the pump and gearbox (with single seal)

LMV-313 Pump

Cross-section of the pump and gearbox (with single seal)

LMV-322 Pump

Cross-section of the pump and gearbox (with single seal)

Sundyne Pumps Mechanical Seals

Single seal

Standard seal used in most applications for non-abrasive and non-hazardous liquids. Bellows seals can also be supplied for higher temperatures and abrasive liquids.

Double seal

It is recommended if the pumped liquid contains abrasive substances or if the leakage can be dangerous or if the pump can run dry.

Tandem seal

Used for cases of rapid cooling, automatically shutting down systems and high-pressure modes. If no buffer fluid is required, the film-forming gas seals can be installed in the upper position, thus providing an additional secondary sealing in case if the main seal fails.

LMV-322 Pump

Ports description:

1. Seal drain, gear oil and process fluid. Always open to the atmosphere.
2. Seal drain (single seal) or buffer fluid inlet (double or tandem seal).
3. Seal flush or case purging.
4. Seal drain (single seal) or buffer fluid outlet (double or tandem seal).

LMV 311-331 Pump

p>Ports description:

1. Seal drain (open to the atmosphere).
2. Seal drain (single seal) or buffer fluid outlet (double or tandem seal).
3. Cooling - inlet (normally closed).
4. Cooling - outlet (normally closed).
5. Seal flush or purging.
6. Seal flush or purging.
7. Seal drain (single seal) or buffer fluid inlet (double or tandem seal)

Sealing Water Pump for LMV-341 Z Pump

Maxam-Chirchiq JSS, Chirchik, Uzbekistan

Training of technical specialists of the plant in repair and maintenance of Sundyne pumps

Sequential application of two LMV-341 Z pumps for the pumping of ammonia and carbamate solution with an output pressure of 200 bar and a flow rate of 40 m3/h.