The Burks BST Series Circulating Filter Pump for Sauna Pool

burks BST Series Swimming Pool Pumps

Introduction

The BST series swimming pool pump is a horizontal, closed-type centrifugal pump. Made of reliable materials, the BST pump ensures a long service life for the user. The BST series pump is fitted with a detachable mesh filter, which protects the pumped liquid (water) from possible impurities. The compact design makes installation quick and easy, requiring only a very small space.

Model Designation

Example: BST 075 I II. BST stands for the swimming pool pump, 075 for the horsepower (HP), I for the maximum head (m), and II for the material: plastic / all copper.

Applications

Main applications of the BST series pumps:
1. For large, medium and small swimming pools, as a booster for water circulation with a matching sand filter, and for hot spring baths and filtration.
2. For pumping seawater circulation and filtration in seafood aquaculture ponds.
3. For garden waterscapes, rockery waterfalls and other decorative pools; water circulation and filtration in water treatment facilities.
4. For pumping weakly corrosive (weak acid, weak alkali) liquids without particles.

Features

● High-efficiency pump body design, large flow; the cover and the strainer basket are easy to dismantle.
● The wetted parts are made of high-strength engineering plastic.
● A reliable mechanical seal allows continuous operation for a long time without leakage.
● Low-noise design, high comfort.
● Strong corrosion durability.
● Quick and convenient matched installation.
● The pump mounting base plate is made of high-strength engineering plastic, shock-proof and anti-corrosive.

Installation

The BST series swimming pool pump must be installed with the motor shaft horizontal. Before starting the machine, open the vent screw on the pump body and only operate the machine after the air inside the pump chamber has been discharged. When installing the pump, an external motor protection device must be connected for the pool pump. The pump motor must be reliably earthed to ensure safe use. Installing a sand filter between the BST pump and the swimming pool achieves better water cleanliness (the figure below shows the sand filter connection diagram).

Performance Data

Technical Data

The figure below shows the performance curves: high speed 2900 r/min (curves 1 to 8) and low speed 1450 r/min (curves 9 to 12). The series comprises 16 models, all rated 220 V / 50 Hz; the input power, maximum flow and maximum head of each model are listed below, and the remaining data (current, packing size, etc.) are per-model large tables not reproduced here; for detailed data, please refer to the user manual.

Installation Dimensions

The figure below is the overall dimension drawing; the L and H dimensions of each model are given in the table at the right of the figure.

Exploded View

The figure below is the exploded view of the BST pump with the parts name list (30 parts in total).

Troubleshooting

1. The pump runs but delivers no water
Outlet pipe blocked → Clear the outlet pipe so that the water flows smoothly
Three-phase pump rotating in reverse → Interchange two of the three phases
Impeller worn → Replace the impeller
Strainer blocked → Clean the filter screen
Suction lift of the pump exceeded → Lower the installation height or raise the water level
Air in the pipeline → Discharge the air from the pipeline

2. Excessive vibration and noise
Pump foundation not strong enough or too light, with suspension or looseness → Strengthen the foundation or its mass; eliminate suspension or looseness
Debris or broken pieces in the pump → Remove debris or broken pieces from the pump, or eliminate friction
Air drawn in during pumping → Discharge the air from the pipeline
Pump running dry, cavitation, or vortex at the inlet → Improve the pump inlet; eliminate the vortex
Defective bearing → Replace the bearing

3. Insufficient flow and head
Pipeline system resistance too high → Reduce the pipeline resistance loss
Air leakage in the inlet piping system, the pump shaft seal or the inlet pipe → Seal the leakage, clear the flow passage and the blockage
The required head is higher than the pump head → Match the pump head properly
Impeller blocked or worn → Clear the impeller blockage or replace the impeller
Three-phase pump rotating in reverse → Interchange two of the three phases
Dirt between the impeller and the pump casing wear ring → (No remedy given in the manual)

4. Motor overheating
Oil, dust, etc. adhering to the motor windings, or the windings are damp → Improve the working environment
Ambient temperature too high → Improve the working environment
Defective bearing → Replace the bearing

5. No response from the motor after switching on
Power cable broken → Replace the power cable
Poor contact → Make a complete connection
Defective circuit-breaker protector → Replace the protector

6. Slight sound but no rotation
Phase loss in the three-phase supply → Check and adjust
Restrained condition caused by aged or damaged bearing → Replace the bearing
Defective single-phase capacitor → Replace the capacitor
Impeller restrained → Remove the debris from the impeller
Voltage drop → Adjust the voltage
Defective contact switch → Replace the switch

7. Electric leakage when touching the pump
Insulation deteriorated → Stop using the pump and have it repaired

Warranty Certificate

1. This is to certify that the products listed below are covered by our company's warranty and have passed strict quality control and inspection under our company's quality management system.
2. Please keep this certificate properly; if it is lost, no replacement will be issued.
3. This product is warranted for one year from the date of purchase against faults not caused by human factors, under normal use.
4. Beyond the period stated above, if parts need to be replaced, the customer will be charged the cost of the parts and a service fee.
5. Our company continuously improves its products; if parts need to be replaced during the warranty period, our company may replace them with improved parts.
6. Our company is not responsible for warranty for faults caused by force majeure (such as cold weather, earthquakes, floods and other natural disasters) or by human factors on the part of the user.
7. This product must be installed and used by professional personnel in accordance with the instructions; the product must be installed in a ventilated and dry environment with an ambient temperature not exceeding 50 °C; otherwise our company is not responsible for warranty for any fault caused by improper installation.
8. After delivery and acceptance of this product, please carry out a test run for acceptance immediately; if there is any objection to product quality, please raise it within one week, otherwise our company will not be responsible.

burks keeps improving and innovating its products. If the appearance and technical parameters of a product are changed, the appearance and technical parameters of the changed product shall prevail, and burks reserves the right to make changes.