| 概述 |
金属密封球阀，是GJ的重大科研成果，主要用于高温、浆体、粉尘类物质的输送。
Metal to Metal Seat Ball Valve is an important scientific researching product. It is mainly applied to the delivery othigh temperature, slurry dust substances etc.
Gj金属密封球阀不仅具有一般工业用球阀的各种优点，而且在耐热性方面，特别市软密封不可能工作的场合，如高摩擦性粉尘、浆体、固体类异物混入的管线输送方面，表现出独有的优异特性。
Gj金属密封球阀不仅具有一般工业用球阀的各种优点，而且在耐热性方面,特别是软密封不可能工作的场合，如高摩擦性粉尘、浆体、固体类异物混入的管线输送方面，表现出独有的优异特性。
GJ Metal to Metal Seat Ball Valve owns not only various advantages of common industrial ball valves, but also parlicularand outstanding characteristice in heat-durability, especially when soft seal could not be used, such as in pipeline delivery of medium with high friction dust, slurry, and solid foreign matters mixture.
阙座是不锈钢基体堆焊司太立合金，球体是以不锈钢为基体采用表面镀硬铬、真空镀膜—钨钛合金和堆焊司太立合金等三种表面处理技术，以满足耐热和耐磨的要求，GJ的球体制造工艺具有独创性，可实现球体的高精度，超镜面加工，GJ金属阀座球阀的另一大特点是：弹簧予压阀座，保证密封的绝对可靠性和操作扭矩稳定。从结构设计商保证了使用安全，密封可靠，操作灵便。
The seat is of stainless steel body with Stellite alloy pile-up welding. The ball is of stainless steel body,with threesurface treatment technique as hard chrome plating, vacuum coating and tungsten-titanium alloy and Stellite alloy pile-upwelding etc. Adopted so as to meet the heat resisting and wear resisting requirement. GJ ball manufacturing process iscreative, which realizes high-accuracy and super mirror surface processing of the ball. Another feature of the metal seat ballvalve is spring prepressing seat, which ensure the absolute reliability of seal and stability of operating torque. It ensuresabsolute safety, sealing reliability and operating flexibility and convenience in structural design. |
| 特点 |
1.使用寿命长的球体·阀座Long life ball．seat
阀座密封面为司太立合金，球体密封面为镀硬铬、真空镀J膜—钨钛合金和司太立三种形式；对各级使用温度和高摩擦性粉尘，浆体，固体类异物混入的管线输送，具有相当的耐摩擦性和长久的使用寿命。
The seat is of Stellite alloy surlace, and the ball sealing face is of three forms as hard chrome plating, vacuum coating andtungsten-titanium alloy and Stellite alloy etc. It owns good friction-resistance and long life for pipeline delivery of mediums withvariousin operating temperatures, high friction dust, slurty，and solid foreign matters mixture.
2.高精密度球体·高密封性阀座High precision ball．High tightness seat
金属阀座，密封性差是其弱点，但是GJ研制的金属密封球阀具有非常高的密封性。靠弹簧预压阀座，保证低压时的密封性，高压密封由阀座活塞效应保证，其中最关键的是GJ独创的球体加工工艺，确保球体的高精密度（圆度）。先进的阀座结构，高精密度的球体是构成严密密封的主要因素。同时也极大的降低了操作扭矩。
While metal seat shows the weak point of low tightness, GJ Metal to Metal Seat Ball Valve has high tightness. It ensuresthe tightness vis spring prepressing seat in case of low pressure; in case of high pressure, the tightness is secured via seatplunger effect. The key point is the original GJ ball processing technic, which ensures the high precision of the ball(roundness). Advanced seat structure and high precision ball are the main factors of high tighness. At the same time, itextremely reduces operating torque. |
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3、应用范围广泛的金属阀座Metal seat that is widely applicable
一般的软阀座，半开状态容易损伤阀座、有的流体不可使用、温度范围狭窄、用途受限。GJ金属密封球阀高硬度金属阀座、使用于高温流体、高摩擦性粉尘、浆体、含撞击物介质、固形异物混入等，几乎所有流体均可使用。
The ordinary flexible seat is easy to damage when in half-open position, while it can not be applied for cerain liquids, withnarrow range of temperature and restricted use. GJ Metal to Metal Seat Ball Valve with high hardness metal seat is applicablefor high temperature liquid, high friction dust, slurry, transmitter with impacting substances and solid mixtures etc.1t is nearlyapplicable for all liquids.
4、 兼备球阀的所有特征It owns all features a ball valve may have
比较闸阀、截止阀而言，具有更多特点的GJ金属阀座球阀，兼备球阀的所有特征，流阻小，操作阀杆转动900即可实现快速关闭，手动、自动的转换容易，便于自动化控制。
Compared with gate valves and globe valves,GJ ball valve with metal seat bears more advantages. It has all features aball valve may have such as small flow resistance, 900 .operating valve lever for quick close, easy shift between manual andautomatic operation etc., Which facilitates the auto control.
5、安全防火静电的最理想阀门The best valve to fire and static resistance safety
金属阀座，耐500℃极限高温，具有天然的防火防静电功能。
Metal seat is resistant to extremely high temperature of 500℃,with the function of fire and static resistance
最具经济性的材质组合The most economical material combination
6、 GJ金属密封球阀，根据不同的使用工况，选用不同的密封副，可实现最经济的合理选择。
The most economical point lies in that GJ Metal to Metal Seat Ball Valve selects different seals according to differentwork condition
7、任意选择操作方式Free selection of operating modes
GJ金属密封球阀，根据阀门的尺寸和使用目的，可选着各种操作机构。
GJ Metal to Metal Seat Ball Valve has the function that different operating mechanism can be selected according to different valve size and application purpose. |
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| 部件图（金属阀座） Part Drawings(metal seat) |
| 浮动球型Floating type |
ANSI CLASS 150Lb. 300Lb. 400Lb_ 600Lb. 900Lb. 1500Lb
Pn16. 25. 40. 64. 100. 160. 250 |
| 通径Size:15-200 |
No．
|
零件名称
PART NAME |
材质
MATERIAL |
| 1 |
螺柱Stud |
A193 B7 |
A193 B8 |
A193 B8M |
| 2 |
螺母Nut |
A194 2H |
A194 8 |
A194 8M |
| 3 |
阀盖Bonnet |
A216 WCB |
A351 Cf8 |
A351 CF8M |
| 4 |
阀体Body |
A216 WCB |
A351 Cf8 |
A351 CF8M |
| 5 |
垫片Gasket |
304+Graphite |
304+G raphite |
316+Graphite |
| 6 |
防尘圈Dustproof Ring |
Graphite |
Graphite |
Graphite |
| 7 |
密封环Seal Ring |
Graphite |
Graphite |
Graphite |
| 8 |
阀座支撑圈Seat Ring |
A105 ENP |
SS304 |
Ss316 |
| 9 |
弹簧Spring |
Inconel X-750 |
Inconel X-750 |
Inconel X-750 |
| 10 |
阀座Seat |
A105+STL |
SS304+STL |
SS316+STL |
| 11 |
阀杆Stem |
A182 F6a |
17-4PH |
17-4PH |
| 12 |
垫片Gasket |
SS304 |
SS304 |
Ss316 |
| 13 |
填料Packing |
Graphite |
Graphite |
Graphite |
| 14 |
填料压盖Gland Flange |
A216 WCB |
A351 Cf8 |
A351 CF8M |
| 15 |
内六角螺钉Hexagon Screw |
A193 87 |
A193 88 |
A193 B8M |
| 16 |
定位片Stopper |
A3+2n |
A3+2n |
A3+2n |
| 17 |
挡圈Snap Ring |
65Mn |
65Mn |
65Mn |
| 18 |
手柄Laver |
Carbon Steel |
Carbon Steel |
Carbon Steel |
| 19 |
垫片Washer |
Carbon Steel |
Carbon Steel |
Carban Steel |
| 20 |
螺栓Bolt |
A193 B7 |
A193 B8 |
A193 B8M |
| 21 |
球体Ball |
A105+STL |
SS304+STL |
SS316+STL | |
 |
| 注： |
| GJ浮动球式金属密封球阀有主流向（推荐安装方向）和反流向之分，主流向时阀门的密封等级达到ANSI B16.104规定的V级要求，反流向时阀门的密封等级达到ANSI B16.104规定的IV级要求。 |
PC:GJ Metal to Metal Seat Ball Valve of floating ball type consists of main(recommended) and reverse flow direction.Seal level should
meet the requirement of level V stipulated by ANSI B1 6.104 when in main flow direction. Or the requirement of level IV shall be met. |
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