Product Description
The screw pipe joint assembly Q/D9111-77 is a mechanical component commonly used for pipeline connections. It seals and fixes the pipeline through the rotation of threads, ensuring the integrity and functionality of the pipeline system. Screw in pipe joint components typically include threaded pipe joints, sealing rings, fasteners, and other components.
The performance of the stainless steel screw pipe joint Q/D9111-77 is very reliable in high temperature and high pressure environments. It can maintain its mechanical properties in high temperature environments and has good corrosion resistance. The stainless steel thread has good meshing performance, which can maintain good connections even under high temperature and high pressure. Therefore, the screw in pipe joint has a wide range of applications in steam turbines, mainly used to connect various pipelines, ensuring the integrity and efficient operation of the steam turbine system.
During installation, by rotating the joint components, the threads are tightly matched with the internal threads of the pipeline, thereby achieving the connection of the pipeline. This type of thread pipe joint Q/D9111-77 has the advantages of simple structure, convenient installation, and good sealing performance, and is widely used in various industrial fields, such as petroleum, chemical, construction, water treatment, etc.
The commonly used special high-temperature alloys for steam turbines include 15CrMoA, 35CRMOA, 40CrMoV-5, 45Cr1MoV, 0Cr18Ni9, 1Cr11Co3W3NiMoVNbNB, 1Cr18Ni9Ti, 20Cr1Mo1VNbTiB, 20Cr1Mo1VTiB, 25Cr2MoVA, 2Cr11Mo1NiWVNbN, and 2Cr12NiMo1W.
The manufacturing of screw pipe joint requires precise process control to ensure their precise dimensions and meet high quality standards. Quality control is crucial throughout the entire manufacturing process. By using various inspection techniques such as size measurement, metallographic microscopy, ultrasonic testing, etc., ensure that each screw meets the specification requirements.
| Technical Specification of High temperature screws |
| Product size |
Customizable to drawings or samples |
| Optional Materials |
15CrMoA |
| 20Cr1Mo1VNbTiB |
| 25Cr2Mo1VA |
| 25Cr2MoVA |
| 35CrMoVA |
| 40CrNiMoA |
| 45Cr1MoV |
| 2Cr11Mo1NiWVNbN |
| 2Cr12NiMo1W1V |
| 1Cr11Co3W3NiMoVNbNB |
| 1Cr18Ni9Ti |
| Heat treatment |
According to the drawing requirements |
| Surface treatment |
Nitriding, galvanizing, etc |
| Accuracy |
0.02mm |
| Special processes |
According to the drawing requirements |
| Quality inspection |
Non destructive testing |
Product Features of Screw pipe joint assembly
1. Simple structure: The design of the screw in pipe joint is compact and takes up little space.
2. Quick installation: Due to its design characteristics, the screw in pipe joint can be quickly connected by simply rotating the thread in place, saving assembly time.
3. Good sealing performance: The screw in pipe joint is tightly sealed by the rotation of the thread to achieve sealing, and its sealing performance is usually good, which can effectively prevent medium leakage.
4. Pressure and temperature resistance: The screw in pipe joint can withstand high pressure and temperature, and is suitable for various industrial occasions, especially in the fields of petroleum, chemical, construction, and water treatment.
5. Economical and practical: The screw in pipe joint has high economic and practical value due to its fast installation, convenient maintenance, and long service life.
6. High reliability: The stability and reliability of the screw in pipe joint during long-term use make it an indispensable part of the pipeline system.
Wide Application of Screw pipe joint assembly
1. High pressure steam pipeline: The screw in pipe joint can be used to connect high-pressure steam pipelines, withstand the high pressure and high temperature of steam turbine exhaust. These joints need to be able to withstand high temperature and high pressure steam environments, usually using materials such as stainless steel that are resistant to high temperature and high pressure.
2. Auxiliary system pipelines: Pipelines in turbine auxiliary systems (such as cooling water systems, lubricating oil systems, etc.) also need to be connected using screw in couplings. These joints need to be able to adapt to different media and temperature and pressure conditions, while maintaining the sealing and stability of the system.
3. Exhaust system: The screw in pipe joint can also be used to connect the exhaust system of the steam turbine, including low-pressure steam pipes and exhaust gas discharge pipes. These joints need to be able to withstand high temperatures and pressures in the exhaust while preventing gas leakage.
4. Condensate system: During the operation of the steam turbine, the condensate generated needs to be discharged through pipelines. Screw in pipe fittings can be used to connect condensate pipes, ensuring smooth water flow and preventing leakage.
Detail Photos
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Packing and Shipping
Standard & solid packaging ensures your goods safety.
Various professional packages at your choice.
Multiple choice of reliable and cost-effective shipping methods available.
Company Profile
Dongfang Yoyik Engineering Co., Ltd is located in Deyang, Sichuan, China's heavy equipment base, was founded in 2004. The company is a professional power plant spare parts manufacturer and supplier. Our products are applicable for many thermal power plants, hydropower plants, metallurgic industrial power plant, cement plant power house, aluminum plant power house, and coal mill power plants.
From advanced precision electric elements and components to highly-customized metal items, you can find all the needed for a power plant from Yoyik.
Yoyik is the
Exclusive Agent of W.M. Nugent CO Inc for selling Nugent filter elements and filtration system products in China. The company also has great advantages in of many hydraulic products, including pumps, valves, sealing materials, etc. the brands include Eaton, Vickers, Moog, star, copaltite, temp-tite, 707, etc.
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FAQ
- ORDER NOTES -
√ Model Selection
Before purchasing, please ensure that the model specifications you provide are complete or that the drawings have been drawn so that you can provide timely and accurate quotations.
√ Quality Assurance
We promise to provide high-quality products and after-sales service. If there are any quality issues, please contact us promptly.
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We sell on MIC, provide a secure and reliable trading environment, and accept multiple payment methods to facilitate your purchase.
- FAQ -
- Are you trading company or manufacturer?
We are factory located in Deyang, China.
- How long is your delivery time?
Generally it is 2-5 days if the goods are in stock. Or it is 7-21 days if the goods are not in stock, it is according to quantity.
- Do you provide samples? Is it free or extra?
Sorry we do not offer samples.
- What price terms do you accept?
Our company can accept all trading manners, eg. EXW, FOB, CIF etc
- What payment terms do you accept?
We accept T/T.
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