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Piping equipment

管道设备

德国进口-克劳斯玛菲管材挤出生产线
■ 硬质合金螺杆结构,高耐磨和耐腐蚀性双金属机筒,保障了高质量和长期加工可靠性;
■ 先进的模头设计、精准的温控系统带来出色的熔体均匀度,可实现低熔温高速挤出,确保产品卓越品质;
■ 配置多系列模头芯棒,与定径套一一匹配不同规格系列管材规格,可严格控制尺寸公差;
■ 快速真空调节系统,精确的冷却水温控制,保持稳定的真空度;

■ 无屑切割,无锯屑,切割过程无噪音;



重力计量系统和超声波在线测量系统
■ 测定值记录与螺杆转速同步,补偿由于喂料螺杆造成的进料波动,使物料持续稳定地进入挤出机的喂料段;
■ 恒定的产品品质,不受堆积密度的波动影响,可靠的实现产品配方;

■ 超声波替代传统的手工壁厚检测,可通过设定值对平均壁厚进行有效控制,确保壁厚始终如一;



真空干燥机
■ 长方体工作室,使有效容积达到最大,微电脑温度控制器,控温精确可靠;
■ 钢化、防弹双层玻璃门观察工作室内物体,一目了然,能够向内部充入惰性气体;
■ 箱门闭合松紧能调节,整体成型的硅橡胶门封圈,确保箱内高真空度;
■ 工作室采用抛光镜面不锈钢板制成,确保产品经久耐用;

■ 储存、加热、试验和干燥都是在没有氧气或者充满惰性气体环境里进行,所以不会氧化;



激光打码设备
■ 通过激光点阵驻留技术,直接在管材表面标刻一个无法擦掉的永久性标记,无需借助任何辅助工具即可肉眼分辨,便于消费者识别;
■ 更好的可追溯性;


Quality Assurance
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  地源热泵技术是一种可再生能源利用技术,它不受地域、资源等限制,真正是量大面广、无处不在。这种储存于地表浅层近乎无限的可再生能源,使得地能也成为清洁的可再生能源的一种形式。

PE燃气管

性能特点:

■ 地源热泵是可再生能源技术,是经济有效的节能技术;            

■ 地源热泵没有任何污染,没有燃烧,没有排烟,也没有废弃物;

■ 地源热泵不需要堆放燃料废物的场地,且不用远距离输送热量;                 

■ 地源热泵一机多用,应用范围广。



Services and Support
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工作温度t

-20℃≤t≤20℃

20℃<t≤30℃

30℃<t≤40℃

压力折减系数

1.00

0.90

0.76

Technical strength

Service idea
While developing and opening up the market, Yifuma Pipe Industry always adheres to the service concept of "customer first" and tries its best to do a good job in technical support and after-sales service, not only to provide first-class products for customers, but also to provide first-class services. In the first place, respond to customer service requirements. We have established a series of service specifications and regularly trained our employees in order to serve our customers more efficiently. Establish customer satisfaction mechanism, customers can complain to our company if they are not satisfied with our service, and we will respond to every customer's opinion. Provide customers with timely and convenient after-sales service, and implement the concept of "customer first" into every service process.

Service organization
The team of product marketing center implements the responsibility system of marketing manager. Every customer has a business manager who specializes in serving them. Customers can contact the business manager for any problems they encounter in the process of cooperation. The business manager will provide technical consultation and business sorting services for customers. The product marketing center is composed of customer service department, marketing department and after-sales service group. After the normal use of the products, our company will continue to provide tracking services, regular return visits, at any time to solve the actual problems of customers in use, and provide comprehensive quality services to customers.

Service process
Yifuma Pipe Industry has experienced technical service team, and has established a sound technical support and after-sales service system. In order to ensure the quality of service, technical consultation, personnel training and on-site guidance will be provided according to the needs of customers to ensure that customers are skilled in installation, operation and use of technology and operate well during the service life.

Brand service

Technical Consulting Hotline

PE gas
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Town gas type

Maximum allowable working pressure MPa

PE 80

PE 100

SDR11

SDR17.6

SDR11

SDR17.6

Natural gas

0.50

0.30

0.70

0.40

liquefied petroleum gas

Mixed air

0.40

0.20

0.50

0.30

Gaseous state

0.20

0.10

0.30

0.20

Artificial gas

Dry gas

0.40

0.20

0.50

0.30

其他

0.20

0.10

0.30

0.20

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Working temperature t

-20℃≤t≤20℃

20℃<t≤30℃

30℃<t≤40℃

Pressure reduction factor

1.00

0.90

0.76

When transporting natural gas, liquefied petroleum and artificial gas, the design pressure should not exceed the maximum allowable working pressure of the pipeline. The maximum allowable working pressure should meet the requirements of the following table.

When the working temperature of polyethylene pipeline is above 20°, the maximum allowable working pressure shall be reduced according to the working temperature (t) and the reduction factor of working pressure. The reduction factor shall comply with the following table.

PE water supply
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Material grade

Maximum allowable value of design stress MPa

PE 80

6.3

PE 100

8

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PE 80

Standard size ratio

SDR33

SDR21

SDR17

SDR13.6

SDR11

Nominal pressure PN, MPa

0.4

0.6

0.8

1.0

1.25

PE 100

Standard size ratio

SDR26

SDR21

SDR17

SDR13.6

SDR11

Nominal pressure PN, MPa

0.6

0.8

1.0

1.25

1.6

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Temperature

20

30

40

Pressure reduction factor (ft)

1.0

0.87

0.74

The relationship between the nominal pressure (PN) of the water supply pipe and the design stress σs and the standard size ratio (SDR) is: PN = 2σs / (SDR-1) where: the units of PN and σs are both MPa.

Maximum allowable value of design stress for different grades of materials

Nominal pressure of polyethylene pipes of different material grades
When the polyethylene piping system is continuously used at temperatures above 20 °C, the maximum working pressure (MOP) shall be calculated as follows: MOP = PN × ft: ft - reduction factor, which is checked in the table below. 

PE-RT
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Conditions of Use

TD ℃

Used under TD
        Time (year)

Tmax℃

Use under Tmax
       Time (year)

Tmal℃

Used under Tmal
       Time (H)

Typical application

Level 1

60

49

80

1

95

100

Supply hot water 60 ° C

Level 2

70

49

80

1

95

100

Supply hot water 70 ° C

Level 4

20

40

60

2.5

20

25

70

2.5

100

100

Floor heating and
       Low temperature radiator heating

Level 5

20

60

80

14

25

10

90

1

100

100

Higher temperature radiator heating

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Design pressure

Level 1

Level 2

Level 4

Level 5

PE-RTⅡ

PE-RTⅡ

PE-RTⅠ

PE-RTⅡ

0.4MPa

5

5

5

5

0.6MPa

5

5

5

5

0.8MPa

4

4

4

3.2

1.0MPa

3.2

3.2

3.2

2.5

Condition level of use for a specific application area of the pipeline (50-year service life)

Pipeline S value selection

Product support

Pipe selection

Electrofusion connection
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  • 1

    1

    1.Measure and mark the depth or weld area of the pipe on the pipe with a marker

  • 2

    2

    2. The oxide layer of the weld zone must be completely removed before welding.

  • 3

    3

    3. The welding surface of pipes and fittings must be absolutely clean and dry without oil.

  • 4

    4

    4. Insert the welded end of the pipe into the joint to the depth of the pipe on the shoulder or the main pipe. The pipe must be installed with the pipe under stress-free conditions.

  • 5

    5

    5. Insert the welder plug into the pipe fitting jack to accurately input the welding time and cooling time marked on the pipe fitting. Or directly scan the barcode to enter the welding parameters.

  • 6

    6

    6. After the preparation is ready, press the confirmation button, the welding machine will display the welding parameters again. After the confirmation, press the start button to start the welding. After the welding is finished, the alarm will be automatically notified and the welding procedure will end.

The connection part of the pipe or the pipe is inserted into the special electrofusion pipe of the embedded resistance wire, and is heated by electricity to melt the connection part and connect the connection. Suitable for 32-315 pipe connections.
In the fused connection, the output voltage of the welder needs to be stable, meet the connection requirements, and the pipe and pipe are connected to the operation specification, and the connection between the welder and the electrofusion pipe is correct.

Hot melt connection
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  • 1

    1

    1. Clean the oil pipe joints, connect the components of the welder correctly, measure the power supply and voltage, confirm that the voltage meets the requirements of the welder; check the clean heating plate; set the parameters correctly according to the welding process.

  • 2

    2

    2. Place the pipe in the welded bracket to level it, adjust the concentricity, correct the tube out of roundness, and draw enough welding distance.

  • 3

    3

    3. Cutting the end face, placing the milling cutter between the two end faces, starting the milling cutter, driving the moving frame by hydraulic pressure, opening the end face when the continuous cutting piece appears, the end face is required to be neat and parallel, the mating end face gap is less than 0.3mm, and the wrong margin is less than 10% of the wall thickness of the weld.

  • 4

    4

    4. Put the heating plate between the welding end faces. Under the specified welding pressure, when the welding height of the welded side of the heating plate reaches the specified value, the pressure is released and the heat absorption timing starts.

  • 5

    5

    5. When the specified time is reached, the heating plate is quickly taken out, and the welding end face is immediately attached. After the welding pressure is reached to the cooling time, the pressure is removed and the jig is removed to take out the pipe.

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  • 4

    4

    4. Put the heating plate between the welding end faces. Under the specified welding pressure, when the welding height of the welded side of the heating plate reaches the specified value, the pressure is released and the heat absorption timing starts.

  • 5

    5

    5. When the specified time is reached, the heating plate is quickly taken out, and the welding end face is immediately attached. After the welding pressure is reached to the cooling time, the pressure is removed and the jig is removed to take out the pipe.

The joint is heated by a special heating tool to melt it, and then pressure-bonded to form an integral connection. Pipes with a diameter of less than 63 mm are not recommended.
The temperature control of the hot-melt welding machine should be precise. The welding heating time, temperature, pressure, pressure keeping and cooling time should be in accordance with the regulations. No external force should be applied to the connecting parts during pressure keeping and cooling.

Hot melt socket
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  • 1

    1

    1. Use a special pipe to cut the pipe vertically, and the incision should be smooth without burrs.

  • 2

    2

    2. Clean the welded parts of the pipe and fittings.

  • 3

    3

    3, hot melt preparation: equipped with a corresponding specification of the heating die on the socket welder. The temperature of the welder is set to 260 °C to turn on the power, and the hot melt end of the pipe is marked according to the required hot melt length.

  • 4

    4

    4. When the working temperature indicator of the hot-melt welding machine is on, the pipe fittings are simultaneously inserted into the heating die, the pipe fittings are advanced to the end of the die, and the pipe is advanced to the marking line.

  • 5

    5

    5. Start timing from the pipe fitting contact die. After the specified heating time is reached, the pipe is pulled out, the pipe is quickly inserted into the pipe without rotation, and pushed to the marking line for more than 3 seconds to cool the newly welded joint. It can be until the specified time.

           Water supply pipes with a diameter of less than 63mm are recommended.

A special heating tool is used to heat the connecting part so that after melting, the pressure is applied to connect the connecting part into one. Pipes less than 63mm in diameter are not recommended.
The temperature control of hot-melt welding machine should be precise. The welding heating time, temperature, pressure, holding time and cooling time should conform to the regulations. No external force should be applied on the connecting parts during holding time and cooling time.


Mechanical connection

Pipe fittings made of metal or high-strength plastics are mechanically fastened and sealed with special tools, so that the pipe fittings and pipes are closely connected.

Flange connection:
1. Put the loose steel flanges of the same pressure level on the pipe
2. The connection between the plastic flange head and the pipe can be connected by electrofusion and hot melt.
3. The length of the connecting pipe should be accurate. When the bolt is tightened, the pipe should not be pulled axially.
4. Straighten the two corresponding connecting pieces so that the two steel flange pieces connected are perpendicular to the pipe axis and the surfaces are parallel to each other.
5. Sealing ring at the pipe joint, using heat-resistant, non-toxic, anti-aging elastic washer
6. Bolts of the same specification should be used, and the installation direction is the same. The bolts should be symmetrically fastened, and the bolts to be fastened should be exposed outside the nut.
7. Flange connection parts should be provided with supports and hangers



Steel-plastic conversion connection:
Product variety: threaded and welded. Product features: The plastic end is made of high quality imported PE raw materials. The steel pipe end is made of materials that meet the requirements of the national standard. It is sprayed with anti-corrosion treatment to ensure the same service life with the PE pipe.
The PE end is connected by electrofusion hot melt butt joints. The steel pipe section and the steel pipe are welded. When welding, attention should be taken to reduce the temperature.


Threaded connection:
Connected to the inner or outer wire of the same specification



Connected to the inner or outer wire of the same specification




Pipe connection

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