LQRY Thermal Oil Circulation Pump for Heat Transfer Systems

Product Description

Model Code Explanation

Product Overview

The LQRY stainless steel thermal oil pump is developed by incorporating the features of various advanced heat oil circulation pumps. This pump is characterized by its rational structure, advanced technology, high efficiency, long-term stable operation without leakage, and no additional cooling system required, making it safe and reliable. It can be widely used in industries such as petroleum, oils, boilers, construction, road maintenance, pharmaceuticals, plastics, rubber, fiber textile, printing and dyeing, etc. It is an ideal pump for circulating thermal media, with a temperature limit of ≤370°C.

Structural Diagram

The LQRY stainless steel thermal oil pump is the second-generation product developed by our company based on foreign oil pump technology. The basic structure is a single-stage, single-suction cantilever foot-support structure. The pump inlet is axially suctioned, and the outlet is vertically centered upwards, with the motor mounted on the same base. The pump uses a dual-end ball bearing support structure, with the front end lubricated by oil and the rear end lubricated by grease. It also has an oil guide pipe to monitor the sealing condition and recover thermal oil. The self-heat dissipation structure replaces the traditional water cooling system, making it simpler, more compact, cost-efficient, and reliable.

1. The pump combines packing seals and mechanical seals. The packing seal uses high-temperature resistant material with excellent thermal responsiveness, while the mechanical seal employs hard alloy materials with high mechanical strength and wear resistance, ensuring sealing performance at high temperatures.

2. The pump uses the third-generation PTFE (Polytetrafluoroethylene) lip seal, which has significantly improved sealing performance, increasing the reliability by 25 times compared to rubber seals and offering strong corrosion resistance.

Technical Specifications

1	Pump Body	2	Cap Nut	3	Impeller	4	Plug	5	Thermal Ring	6	Flat Key
7	Pump Cover	8	Elastic Ring	9	Aluminum Gasket	10	Pressure Ring	11	Gasket	12	Nut
13	Washer	14	Bolt	15	Bolt	16	Pump Shaft	17	Ball Bearing	18	Bearing Seat
19	Gasket	20	Aluminum Nameplate	21	Rivet	22	Mechanical Seal	23	Bolt	24	Support Foot
25	Gasket	26	Oil Guide Pipe	27	Screw	28	Gasket	29	Rubber Seal	30	Bearing Cover
31	Gasket	32	Pump Coupling	33	Flat Key	34	Elastic Block	35	Motor Coupling	36	Cover
37	Screw	38	Motor	39	Bolt	40	Bolt	41	Gasket	42	Base
43	Gasket	44	Elastic Stop Ring	45		46		47		48

Safety and Installation

1. The quality of installation plays a crucial role in the smooth operation and service life of the LQRY stainless steel thermal oil pump, so the installation work must be done carefully and without haste.

2. The suction pipe height, length, and diameter should meet the calculated values. Keep the installation as short as possible to reduce unnecessary losses (such as elbows, etc.).

3. The suction and discharge pipelines should be supported by pipe racks, and the pump should not bear the weight of the pipeline.

4. The installation location of the pump should be spacious enough to facilitate maintenance and provide good heat dissipation.

5. Installation procedure:

1. Place the unit on a foundation with anchor bolts, placing matching shims between the base and foundation for alignment.
2. Loosen the coupling, use a level to check the alignment of the pump shaft and base, adjust the wedges to level, tighten the anchor bolts to prevent movement.
3. Pour concrete to set the base and anchor bolts.
4. After the concrete has hardened, check if the base and anchor bolts are loose or defective. Tighten the anchor bolts and recheck the pump’s level.
5. Check the coaxiality between the pump shaft and motor shaft. The allowable deviation on the coupling outer circle is 0.1mm, and the gap between the two coupling faces should be 2-3mm, with the maximum and minimum gap difference not exceeding 0.3mm.
6. After connecting the piping and ensuring the correct direction of the motor, reconnect the coupling and check coaxiality again.
7. After the actual trial run for 3-4 hours, check again. If no abnormal conditions are found, the installation is considered successful.
8. During installation, to prevent debris from entering the machine, cover all holes and ensure proper cleaning of the inlet and outlet pipes before operation. Install a filter on the pump inlet to prevent foreign objects from entering the pump.

OEM & Custom Solutions

We offer OEM branding, stainless-steel versions, PTFE upgrade seals, high-temperature models, custom bases, flange standards, voltage options, and export-grade packaging for international buyers.

FAQs for Overseas Buyers

1. What is the maximum working temperature?
The pump handles up to 370°C; special materials can reach higher ranges.

2. Does the pump require cooling water?
No. LQRY uses a self-radiation design and does not need external cooling.

3. What industries commonly use this pump?
Petroleum, chemical, textile, rubber, plastic, boilers, and dyeing systems.

4. What seal types are included?
High-temperature packing seal + mechanical seal + PTFE lip seal.

5. How should the system be preheated?
Increase temperature slowly until water vapor is fully removed; casing ≥40°C.

6. What maintenance is required?
Bearings need service every 3,000 hours; check alignment, vibration and leakage.

7. Can OEM customization be provided?
Yes, including materials, seals, voltage, flanges, and special temperature configurations.