TECHNICAL ADVANTAGES

Geographical Advantages

Technical Advantages

Testing Center

Service Advantages

Testing Center

Ⅰ List of Main Testing & Processing Equipment

 

No.

Equipment Name

Model

Qty

Unit

Manufacturer / Origin

Status

1

vertical lathe

CX5116D

2

Set

Dalian Jirun Group Dalian Watt Heavy Machine Tool Co., Ltd.

In use

2

Digital display horizontal boring and milling machine

TX6111D

2

Set

Shenji Group Kunming Machine Tool Co., Ltd.

In use

3

horizontal lathe

CW6163P

2

Set

Yunnan Machine Tool/Yunnan

In use

4

horizontal lathe

CW6150B/A

4

Set

Shenyang Machine Tool/Shenyang

In use

5

horizontal lathe

CS6140

5

 Set

Baoji Machine Tool/Baoji

In use

6

horizontal lathe

CA6140A

3

 Set

Shenyang One Machine/Shenyang

In use

7

horizontal lathe

CW6163B

4

 Set

Shenyang Machine Tool/Shenyang

In use

8

CY horizontal metal band saw machine

 

2

 Set

Zhejiang Weiye/Zhejiang

In use

9

horizontal lifting table milling machine

XW6036A

3

 Set

Tengzhou Daheng Machine Tool/Tengzhou

In use

10

cylindrical grinder

M1332BX

4

 Set

Shanghai Machine Tool Works/Shanghai

In use

11

radial drilling machine

Z3050X

3

 Set

Shenyang Machine Tool/Shenyang

In use

12

argon arc welding machine

WS250S

4

 Set

TA/OR General/Shanghai

In use

13

Dynamic balancing machine

YYW-1600A

1

 Set

Jinan Silver Arrow CNC equipment/Jinan

In use

14

Digital display hydraulic strength testing machine

SWY

2

 Set

Wuxi Sanfeng Instrument/Wuxi

In use

15

electromagnetic flowmeter

DN50/6.3MPa

2

 Set

Central Tianyi/Central

In use

16

electromagnetic flowmeter

DN80/10.0MPa

2

 Set

Kaifeng instrument/Kaifeng

In use

17

electromagnetic flowmeter

DN100/10.0MPa

2

 Set

Kaifeng instrument/Kaifeng

In use

18

electromagnetic flowmeter

DN150/16.0MPa

2

 Set

Kaifeng instrument/Kaifeng

In use

19

electromagnetic flowmeter

DN200/10.0MPa

2

 Set

Kaifeng instrument/Kaifeng

In use

20

electromagnetic flowmeter

DN250/10.0MPa

2

 Set

Kaifeng instrument/Kaifeng

In use

21

electromagnetic flowmeter

DN300/6.3MPa

2

 Set

Kaifeng instrument/Kaifeng

In use

22

vibrometer

AR63A

1

 Set

ARCO Hong Kong Henggao Electronics Group/Hong Kong

In use

23

Richter hardness tester

MH180

1

 Set

Beijing Meitaike Technology/Beijing

In use

24

Large metallographic examination instrument

601

1

 Set

Shanghai BiMu Instrument/Shanghai

In use

25

precision sound level meter

JS-1

1

 Set

Jiaxing Hengsheng Electronics/Jiaxing

In use

26

ultrasonic flaw detector

MUT600B

2

 Set

Beijing Mattel Technology/Beijing

In use

27

Torque meter

0-1000N.m

1

 Set

Jinan Fen Test Instrument/Jinan

In use

28

Torque meter

0-2000N.m

1

 Set

Jinan Fen Test Instrument/Jinan

In use

29

Torque meter

0-5000N.m

1

 Set

Jinan Fen Test Instrument/Jinan

In use

30

Torque meter

0-10000N.m

1

 Set

Jinan Fen Test Instrument/Jinan

In use

 

Ⅱ Comprehensive Pump Test Bench

 

 

 

 

 

　　We follow relevant national standards strictly.Every pump undergoes full-speed performance test before delivery.Each pump also passes full-speed reliability operation test.

　　Our laboratory is a Class 1 national certified test center.

  • 　Test crane: Max lifting capacity 50 tons, max lifting height 12 meters
  • 　Test water tank: Volume 8000 cubic meters, depth 12 meters
  • 　Complete advanced testing equipment is deployed here

　　The system automatically collects and processes test data.It supports self-inspection and test error analysis.Max test power reaches 2500 KW.

　　We are equipped with advanced measuring instruments:

  • 　Pressure: High-precision pressure sensors & precision pressure gauges
  • 　Flow: High accuracy electromagnetic flowmeters
  • 　Power: High-precision torque & speed sensors

　　Auxiliary tools: Infrared thermometer, vibration tester, sound level meter, handheld tachometer

　　This bench can complete all required tests:

　　Centrifugal pump performance test, mechanical running test, cavitation test, vibration test, noise test.

 

　　

Ⅲ  Multistage Centrifugal Pump Test Specifications

　　1. Testing Instruments

  • 　Pressure sensor: Beijing Guancheng, accuracy ±0.25%
  • 　Electromagnetic flowmeter: Shanghai Kelong, accuracy 0.3%
  • 　Power measuring: Digital power meter, Class 0.5 accuracy
  • 　Rotation speed: American Monarch ACT-3 tachometer, Class 0.1 accuracy

　　Open test bench accuracy (Class I):

  • 　Flow error: 2.0%
  • 　Rotation speed error: 0.5%
  • 　Head error: 1.5%
  • 　Power error: 2.0%
  • 　Efficiency error: 2.9%

　　2. Test Outline Requirements

　　We make a dedicated test outline before pump testing.

  1. The outline complies with Class 2 rules of GB/T3216-2005.

　　Standard full name: Rotodynamic pumps — Hydraulic performance acceptance tests (Classes 1 and 2).It defines all details of factory tests for horizontal multistage centrifugal pumps.

　　2.  Scope: Factory performance test of horizontal multistage centrifugal pumps.

　　3.  Function: Serves as basis for issuing pump factory test reports.

　　4.  Pump performance acceptance rules

　　We test pumps against the guaranteed performance data provided by our factory.Products must meet Class 2 requirements of GB/T3216-2005 to pass inspection.Products failing the standard will be rejected.

 

Ⅳ  Applicable Standards

　　All mining drainage pump equipment shall comply with latest national codes, standards and specifications during manufacturing, packaging, transportation, storage, testing, acceptance and commissioning.

　　Applicable standards list:

  1.  Coal Mine Safety Regulations (2022 Edition)
  2.  Code for Design of Coal Mine Underground Mine GB 50215-2015
  3.  Code for Design of Underground Pump House and Drainage Pipeline in Coal Mine GB 50451-2017
  4.  Multistage Centrifugal Pumps for Coal Mine MT/T114-2005
  5.  Technical Specification for Centrifugal Pumps (Class III) GB/T 5657-2013
  6.  Centrifugal, Mixed-flow and Axial Pumps — NPSH GB/T 13006-2013
  7.  Efficiency of Centrifugal Pumps GB/T 13007-2011
  8.  Rotodynamic Pumps GB/T 3216-2016
  9.  Methods of Vibration Measurement and Evaluation for Pumps GB/T 29531-2013
  10.  Methods of Noise Measurement and Evaluation for Pumps GB/T 29529-2013
  11.  Methods for Measurement of Pump Flow Rate GB/T 3214-2007
  12.  Mechanical Vibration GB/T 9239-2006
  13.  Alloy Structural Steel GB/T 3077-2015
  14.  Carbon Structural Steel GB/T 700-2006
  15.  Ductile Iron Castings GB/T 1348-2019
  16.  General Corrosion-resistant Steel Castings GB/T 2100-2017
  17.  Steel Pipe Flanges Part 1: PN Series GB/T 9124.1-2019
  18.  Gray Iron Castings for Pumps JB/T 6880.1-2013
  19.  Steel Castings for Pumps JB/T 6880.2-2021
  20.  Technical Conditions for Paint Coating of Pump Products JB/T 4297-2021
  21.  Dimensional Tolerances of Flow Passage Castings of Centrifugal Pumps JB/T 6879-2021
  22.  Integral Steel Pipe Flanges JB/T 79-2015
  23.  Mechanical Vibration of Machines with Shaft Heights 56 mm and Above — Measurement, Evaluation and Limits GB/T 10068-2020
  24.  Methods for Noise Measurement and Limits of Rotating Electrical Machines GB/T 10069-2008
  25. 5 Technical Conditions for Basic Series of Large Three-phase Asynchronous Motors GB/T 13957-2008
  26.  Test Methods for Three-phase Asynchronous Motors GB/T 1032-2012
  27.  Cooling Methods for Rotating Electrical Machines GB/T 1993-1993
  28.  Rotating Electrical Machines — Rating and Performance GB/T 755-2019
  29.  Explosive Atmospheres Part 1 GB 3836.1-2021
  30.  Explosive Atmospheres Part 2 GB 3836.2-2021
  31.  Degrees of Protection Provided by Enclosures (IP Code) for Rotating Machines GB/T 4942.1
  32.  Code for Types of Construction and Mounting Arrangements of Electrical Machines GB/T 997-2003
  33.  General Technical Conditions for Packaging of Mechanical and Electrical Products GB/T 13384-2008
  34.  Packaging, Storage and Transportation Pictorial Markings GB/T 191-2016
  35.  Safety Mark Identification for Mining Products AQ 1043-2007
  36.  Acceptance Standard for Safety Facilities Inspection of Coal Mines AQ1055-2008

Ⅴ Packaging, Transportation & Protection Measures

  1. 　We pack pump sets following GB/T13384 standards.We add rainproof, moisture-proof, rust-proof and shockproof protection.This prevents pump damage from vibration and collision during transit.
  2. 　All pump sets are fully dried before shipment to avoid moisture damage.
  3. 　All openings, flanges and joints are sealed for protection.This stops corrosion, physical damage and foreign object entry during transport and storage.Pump inlet and outlet ports are covered with solid plates.
  4. 　Threaded holes and welding ports for field connection are sealed by threads or other protective covers.
  5. 　Covers, metal straps and fasteners will not be welded onto equipment bodies.
  6. 　Spare parts and wearing parts are packed separately with clear identification labels.
  7. 　If surface paint scratches occur after delivery to site, we provide free touch-up paint or full paint supply.

　　Storage Rules (For Buyer Reference)

　　Storage Site Requirements

　　The warehouse must be well ventilated, bright and clean.Keep windows open for air flow in daytime.Close windows on rainy days to keep spare parts dry.

　　Storage Management Rules

  1.  Follow three core storage principles:

　　Fire prevention, water prevention, pressure prevention;

　　Fixed location & fixed quantity management;

　　First-in, first-out stock rotation.

　　2.  Stack parts in order: Small & light items on top, large & heavy items at bottom.

　　3.  Moisture-sensitive parts cannot be placed directly on the ground.Place them on shelves or pallets for isolation.

　　4.  Metal parts need regular anti-rust treatment.Rubber parts must avoid contact with oil and grease.All spare parts shall be kept dust-free.

　　Valid Storage Life (For Buyer Reference)

  1.   Rubber parts such as O-rings: Minimum valid storage life 1 year.
  2.   Parts like shaft sleeves: Can be stored long-term under proper storage conditions.