Hydraulic quick closing check valve
- sell:021-32051999
- sell:021-32050777
- fax:021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
Hydraulic exhaust check valve is installed in the exhaust horizontal pipeline from the middle and low pressure steam guide pipe of steam turbine. It is mainly to prevent the steam in the exhaust pipeline from backfilling in case of accident and cause turbine overspeed.
Structural characteristics
1. The valve plate adopts large oblique angle to shorten the opening and closing stroke, hydraulic (gas) closing aid to realize quick opening and closing, three-dimensional eccentric sealing structure, opening and sealing is separated, closing contact is sealed, opening and closing is light and flexible. (less than DN250 using cut-off mode)
2, the valve plate is assisted to close the thrust to achieve the purpose of cut-off and check.
3, fast closing time can reach 0.5~ 1 seconds, emergency cut-off is safe and reliable.
technical requirement
1. hydraulic source interface: RC1/2
2. hydraulic cylinder operating pressure: 0.5-0.8 MPa,
3. emergency cut off time; 0.5-1 seconds.
4. connecting flange: JB/T79-94 GB/9113.2000
5. structure length: GB 12221-89
6. supply voltage: AC220-DC24V (marked when ordering)
Model compilation
公称通径(mm) | 80~1600 | |||||
公称压力(MPa) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 | |
试验压力 | 强度试验 | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
密封试验 | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
气压密封试验 | 0.6 | |||||
适用介质 | 水、蒸汽、煤气 | |||||
适用温度(℃) | 软密封:≤80℃;C碳素钢-29-425℃; I合金钢-29-530℃;P 铬镍钛钢与R铬镍钼钛钢-196-600℃ |
1 | 阀体 | WCB | 12 | 端盖 | WCB |
2 | 阀瓣 | 2Cr13/1Cr18NiTi | 13 | 阀轴 | 1Cr18NiTi |
3 | 阀杆 | 2Cr13/1Cr18NiTi | 14 | ||
4 | 导向套 | 2Cr13/1Cr18NiTi | 15 | 液压源接管 | 铜管 |
5 | 填料 | 柔性石墨 | 16 | 2位5通电磁阀 | 组合件 |
6 | 填料压盖 | 25 | 17 | 关阀液压管 | 铜管 |
7 | 支架 | WCB | 18 | 开阀液压管 | 铜管 |
8 | 指示盘 | 25 | 19 | ||
9 | 阀杆 | 2Cr13/1Cr18NiTi | 20 | ||
10 | 助关液压缸 | 组合件 | 21 | 信号反馈装置 | 组合件 |
11 | 22 | 信号反馈装置 | 组合件 |
23 | 阀体 | WCB | 33 | 助关液压缸 | 组合件 |
24 | 阀瓣 | 2Cr13/1Cr18NiTi | 34 | 关阀液压管 | 铜管 |
25 | 螺栓+螺母 | 标准件 | 35 | 开阀液压管 | 铜管 |
26 | 阀杆 | 2Cr13/1Cr18NiTi | 36 | ||
27 | 填料 | 柔性石墨 | 37 | ||
28 | 填料压盖 | 25 | 38 | 信号反馈装置 | 组合件 |
29 | 支架 | WCB | 39 | 信号反馈装置 | 组合件 |
30 | 指示盘 | 25 | 40 | 2位5通电磁阀 | 组合件 |
31 | 液压缸连接杆 | 2Cr13/1Cr18NiTi | 41 | 液压源接管 | 铜管 |
32 | 42 |
可能发生的故障 | 原因 | 排除方法 |
密封面泄漏 | 1.阀瓣密封面夹有杂物 2.阀瓣关闭不到位 3.密封面刮伤 | 1.清理杂质.清洗阀门内腔 2.调整连接件(图中8、9处) 3.研磨密封面 |
阀门两端面泄漏 | 1.两侧密封垫片失效 2.管法兰压紧力不够或压紧不均匀 | 1.更换密封垫片 2.压紧法兰螺栓 |
填料处泄漏 | 1.填料压盖螺母松动 2.填料损坏 | 1.拧紧压盖螺母(以填料不泄漏为准) 2.更换填料 |
阀门不开闭 | 1控制线路故障 2电磁阀线圈烧坏 3.液压源故障 | 1.检查控制线路 2.更换线圈 3.检查液压源 |
The best quality, first-class service Qigao creates more value for you!
"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:
Product Standards:
Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.
pre-sale service:
Product introduction, technical exchange, non-standard product design, troubleshooting。
Sale service:
A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service:
1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.
3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).
4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:
a、Structure length;
b、Connection Type;
c、Nominal diameter, full diameter, reduced diameter, pipe size;
d、Operating medium and temperature, pressure range;
e、Tests, inspection standards and other requirements
2、The factory can configure various types of driving devices according to customer's specific requirements.。
3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.
Order Process:
1、Customer purchase list fax to021-33872143,Or call us 021-33872141
2、Receive customer purchase list, provide valve model selection and quotation (price list)。
3、Specific agreement: delivery date, special requirements, etc.。
download Google:
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
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4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。
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Sale service:
Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。
For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service:
1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
In order to further improve product quality。
3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。
4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。
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