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Shanghai Yingchuan Valve Co., Ltd.

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PRODUCTS Products

Supply stop valve
specification:
DN10-200
price:
1/
Quantity:
100
Place of delivery:
Shanghai
release time:
2013-05-22
Validity period:
255 days
Remarks:
Product description: Valves | Shanghai Valves || Imported Valves ||| Stop Valves—Shanghai Yingchuan Valves, Throttle Valves; Imported Stop Valves, High Pressure Stop Valves High temperature shut-off valve. High pressure high temperature shut-off valve. Electric globe valve J941H / J961Y. Pneumatic globe valve J641H. Pneumatic angle seat valve. Japanese standard stop valve J41W. German standard globe valve. American standard globe valve J41W. Insulation globe valve BJ41H / BJ45. High temperature globe valve J41Y / J61Y. High pressure globe valve J41H, butt-welded globe valve J61Y / J65Y / J64H. High temperature and high pressure globe valve. Y-shaped globe valve J45 / J65Y. Self-sealing globe valve J41W / J61W. Brass globe valve J11W. Cast iron globe valve J41TW. Cast steel globe valve J41H. Forged steel globe valve. Stainless steel globe valve J41W. Chrome-molybdenum steel globe valve J41Y-100I. Bellows globe valve WJ41 / WJ44 / WJ61H, insulation bellows globe valve BWJ41W. Wire port stop valve J11W. Flange globe valve J41. Oxygen shut-off valve JY41W. Vacuum stop valve NKJ41H / 44H / J61. Water sealed globe valve DS41H / DS61H. Bevel gear stop valve J541H. Stop valve for ammonia J41B / J42B / J61B / J21B / J11B. Angle globe valve J44H. Fluorine lined globe valve J41F4 / J45F4. Rubber-lined shut-off valve J41J / J45J. Plastic globe valve J41F-6S, J11F-6S. Liquefied gas stop valve J41F. Natural gas shut-off valve J41N. Cryogenic globe valve DJ41W. Percussion large-diameter globe valve. Steam shutoff valve. Spirax Sarco style globe valve. Throttle valve, high pressure throttle valve, cut-off throttle balance valve L41Y / L44Y / L46Y / L86Y / L87Y / L66Y / L67Y / L47Y Throttle cut-off vent valve FJ41Y. Throttle cut-off blowdown valve TPJ41Y. The material of the valve body is: cast iron, cast steel, stainless steel, forged steel, chrome molybdenum steel, chrome molybdenum vanadium steel. Working pressure 1.6-32MPA (American standard from 150LB-2500LB, Japanese standard from 10K-64K). Working temperature: -20 ℃-550 ° C. The valve diameter is from DN15-DN300. Connection method: flange, wire mouth or welding. Drive mode: manual, electric, pneumatic, bevel gear, spur gear rotation. Applicable medium: water, oil, gas, steam, etc. Brief introduction of globe valve: The opening and closing parts of globe valve are plug-shaped discs, the sealing surface is flat or conical, and the discs move linearly along the center line of the fluid. The movement of the valve stem can be lifted (the stem is raised and lowered, and the hand wheel is not raised and lowered), and there is also lifted and rotated (the hand wheel is rotated and raised together with the stem, and the nut is set on the valve body). The globe valve is only suitable for full-open and full-close. It is not allowed to adjust and throttle. The globe valve is a compulsory sealed valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface to not leak. When the medium enters the valve 6 from below the valve disc, the resistance to be overcome by the operating force is the frictional force of the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve. The diameter of the stem must be large, otherwise the failure of the valve top bend will occur. In recent years, since the emergence of self-sealing valves, the medium flow direction of the shut-off valve has changed from the upper part of the valve disc into the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, and the force to open the valve is large. The diameter can be reduced accordingly. At the same time, this type of valve is also tight under the action of the medium. China's valve "three chemical supply" has stipulated that the flow direction of the shut-off valve will be used from top to bottom. When the shut-off valve is opened, the opening height of the valve flap is 25% to 30% of the nominal diameter, and the flow has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the shut-off valve should be determined by the stroke of the valve disc. Globe valve has the following advantages: 1. Simple structure, more convenient to manufacture and maintain. 2. Small working stroke and short opening and closing time. 3. Good sealing performance, low friction between sealing surfaces and long life. The disadvantages of globe valves are as follows: 1. The fluid resistance is large, and the force required when opening and closing is large. 2. Not suitable for medium with particles, high viscosity and easy to coke. 3. Poor tuning performance. The type of globe valve is divided into external thread type and internal thread type according to the position of the stem thread. According to the flow direction of the medium, there are straight-through, direct-current and angular. The shut-off valve is divided into sealing forms, and it has a packing-sealed shut-off valve and a bellows-sealed shut-off valve. The installation and maintenance of globe valve should pay attention to the following matters: 1. Globe valve operated by hand wheel and handle can be installed in any position of pipeline. 2. Handwheels, handles and moving mechanisms are not allowed for lifting. 3. The flow direction of the medium should be consistent with the direction of the arrow shown on the valve body. Welcome to order! Shanghai Yingchuan Valve Factory Co., Ltd.



contact method
Contact:
Mr. Lin
the company:
Shanghai Yingchuan Valve Co., Ltd.
address:
11 Jiangshan Road, Lane 958, Songsong Road, Minhang District, Shanghai
phone:
021-61249196
fax:
021-61249195
Phone:
15000646407
QQ:
URL:
www.shycfm.com
e-mail:
a028v@126.com

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