Material, Inspection and Transmission Device of High Pressure Casting Globe Valve
Classification:
Release Time：2017-07-31
1. high pressure casting cut-off valve material body and valve cover material is divided into several kinds. Valve materials in strict accordance with the requirements of steel valves and the requirements of the relevant valve material standards for material selection, and to ensure the service life of the valve. The valve materials produced by Wuhan Xiete Valve Technology Co., Ltd. are manufactured in accordance with the specified standards. The steel castings shall be heat treated according to the standard requirements. Non-destructive testing of pressure-bearing steel castings. All pressure forgings meet the specified requirements. The report and inspection documents shall be filed to facilitate the inspection and acceptance by the buyer during the valve production process. Stem material is divided into 13Cr, 304 or 316. Stem material according
Materials 1. High Pressure Casting Globe Valve
The material of the valve body and the valve cover is divided into several kinds. Valve materials in strict accordance with the requirements of steel valves and the requirements of the relevant valve material standards for material selection, and to ensure the service life of the valve.Wuhan Xiete Valve Technology Co., Ltd.The production of valve materials in accordance with the requirements of the specified standards for manufacturing. The steel castings shall be heat treated according to the standard requirements. Non-destructive testing of pressure-bearing steel castings. All pressure forgings meet the specified requirements. The report and inspection documents shall be filed to facilitate the inspection and acceptance by the buyer during the valve production process.
Stem material is divided into 13Cr, 304 or 316. Valve stem material shall be selected according to relevant valve standards, mechanical performance report (tensile test, hardness test), heat treatment according to standard requirements, and relevant reports shall be provided. Similarly, all reports should be kept on file.
Inspection and Test of 2. High Pressure Casting Globe Valve
1. Test standard
Valve inspection and testing to implement certain standards. The shell pressure test shall be carried out before the valve surface treatment and painting.
2.100% pressure test must be carried out before the valve leaves the factory. The valve pressure test should include these contents: shell test, upper seal test, low pressure gas seal, high pressure water seal test and other tests specified in the specification.
3. After the test, drain the test medium in the valve body.
4.100% of all butt welds shall be subject to X-ray inspection.
5. Transmission device of high pressure stop valve:
① According to the operating conditions of the stop valve, the valve operating mechanism should have sufficient torque and rigidity.
The operating mechanism of the housing support and the parts connected with the valve body require sufficient rigidity and strength.
The maximum force of the handwheel of the manual operating mechanism is 35Kgf (under any working condition). The valve drive mechanism is required to operate smoothly in the full stroke, without jamming or beating, with high adjustment precision and accurate action.
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Wuhan Xiete Valve Technology Co., Ltd.Focus on all kinds of valves,Filter,Gas drainer,Throttle orifice plateIt is a professional manufacturing enterprise integrating R & D, production, sales and after-sales, with 20 years of rich experience in the industry. It owns the Xiete valve brand, builds the best R & D professional team in the industry, and has a number of independently designed and developed patented products. Provide customers with the bestValve function customization solution, and has successfully provided professional design customization services for many enterprises and institutions. At the same time, Wuhan Xiete Valve Technology Co., Ltd. has obtained ISO9001 quality system certification and TS special equipment license. Our product types, complete styles, quality assurance, factory direct sales, economical, convenient and fast to provide customers with one-stop service!
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