25公斤级阀门迈克阀门压差旁通阀

2021年01月20日

SK780X型压差旁通平衡阀

SK780X Pressure Differential By-pass Balancing Valve

 

1.      产品概述:Statement:

SK780X型压差旁通平衡阀是一款利用管道自身液压为驱动源的隔膜式水力控制阀。通过平衡分、集水器(供、回水管)间的压差保证空调冷冻、供暖系统中机组的流量基本恒定、水泵运行工况稳定,避免个别支路流量的改变对其他支路流量产生影响,有利于空调暖通系统运行的稳定性,保证流过冷冻机组(锅炉)的流量满足额定流量要求,保障冷冻机组(锅炉)的安全、高效运行。

SK780X Pressure Differential By-pass Balancing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, widely applied in HVAC system for guarantee of flow stability in the air conditioning, refrigeration and heating system and pump working. The valve prevents the effect on the other pipe branches when there is fluctuation on one branch by balancing of pressure in the radiant and distribution water manifold, thus to protect the efficient and safe working of the refrigeration set or heating set.

SK780X型压差旁通平衡阀由压差平衡导阀、针型阀(或球阀)、小型过滤器、球阀等组成。

 

SK780X Pressure Differential By-pass Balancing Valve is composed of pressure balancing pilot valve, needle valve (or ball valve), mini strainer and ball valve, etc.

 

SK780X型压差旁通平衡阀并联于分、集水器(供、回水管)间,水流由分水器(供水管)从阀门进水口连续地通过针型阀(或球阀)1进入上控制腔2,导阀3分别通过导管4和导管5接入分、集水器(供、回水管),感应两边压力,根据两边不同时段的压力差控制导阀3的开度。压差较高则导阀3开启度增大,上控制腔2内压力相对减小,则主阀开度增大,旁通管水流增大、弥补用户端流量的不足,平衡整个系统流量;压差较低则导阀3在弹簧的作用下开启度减小,上控制腔2内压力增大,则主阀开度减小,旁通管水流减小、弥补用户端流量的不足,平衡整个系统流量。

SK780X Pressure Differential By-pass Balancing Valve is installed between radiant and distribution water manifold (water supply and water return). Water flow enters continuously from water supply duct to the valve inlet and then to the upper cavity room (2) through needle valve (1) (or ball valve). Pilot valve (3) is connected to the water supply duct and return duct by guide tube (4) and (5) to sensing of the pressure difference and adjustment of the opening position of the pilot valve accordingly. When the pressure difference is large, pilot valve opens broadly, the pressure inside upper cavity room (2) declines and the basic valve opens broadly. As result the water flow between the supply and return duct increase and the entire system gets balanced. When the pressure difference is small, pilot valve (3) turns to close at the pressure of the spring, the pressure inside upper cavity room (2) increase and the basic valve turns to close. As result the water flow between the supply and return duct decreases and the entire system also gets balanced.

 

3.      产品特性及优势:Property and advantages:

l  系统压力驱动——阀门独立操作、利用管道能源,节能环保;

l  Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection.

l  双腔式设计——能源消耗低,启闭平稳、无压力波动,膜片有依托受到良好保护;

l  Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected.

l  触角式感应导管——压差平衡导阀的触角式导管45,分别接入分、集水器(供、回水管),导阀感应更加灵敏、可靠,调节准确;

l  Antenna type of conduit, See No.4 and 5 conduit, connect with water knockout drum and water collector (supplying pipe and return pipe), can achieve accurate and reliable adjusting.

l  内部节流孔——主阀下控制腔与阀后出口连通的内部节流孔可使阀门反应更加平缓,保持阀后稳定,避免管道振动及噪音;

l  Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise.

l  直流式流道——阀门采用直流式流道设计,阀门全开时流道有效过流面积相当于阀门公称通道面积、流通能力强、水流损失小,流道设计合理,不易产生紊流、湍流等有害流态,减少汽蚀危害;

l  Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation.

l  长节距导向——阀杆运动采用长节距导向,阀杆运动平稳、无间隙卡阻;

l  Long pitch orientation design for stem move, stable and no gap resistance.

l  自平衡功能——阀瓣与阀杆连接采用大间隙配合,阀瓣在垂直于阀杆的平面上有一定的自由度,能自动平衡由于加工或装配误差造成阀座密封面与阀杆不垂直的缺陷,实现密封面的完好配合,达到零泄漏,即可减动压又可减静压;

l  Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

l  高球化率铸造(球化率90%以上)——阀门原厂铸造,采用先进的高球化率冶金技术铸造,内在、外在质量均严格控制,随炉试棒、材质资料,可溯追踪;

l  Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

l  内外高效防腐——阀门内件由不锈钢、铜合金、优质橡胶等不锈材质组成,阀门内腔表面和外表面均进行环氧树脂热固性粉末喷涂,无毒、无嗅、无味。阀门整体符合GB/T17219-2001《生活饮用水输配水设备及防护材料的安全性评价标准》的要求。

l  Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rust-resisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with GB/T 17219-2001 and other international specifications like WRAS, NSF61.

 

4.      典型安装示意图:Typical installation illustration

 

 

 

 

5.      调试注意事项:Notes for installation and debugging

a.       压差旁通控制阀在出厂前已经经过初步调试,但在系统运行时仍需根据不同设定值进行再次调试;

The valve has been finished initial debugging tests before delivery. Further debugging test is also suggested during using according to different set-conditions.

b.      通过观察分、集水器(供、回水管)上的压力表,根据设定的压差值调整导阀3,调节导阀顶部的调节螺钉,顺时针旋转时压差增加,逆时针旋转时压差加减小,根据设定的压差值进行调节,调好后拧紧锁紧螺母,此时压差就会保证在设定的压差值,而不论管道的压力变化如何;

Over review pressure meter of water knockout drum and water collector, adjust pilot valve No.3 according to set-difference of pressure. Clockwise is for increasing the pressure difference and anticlockwise is for reducing pressure difference when set adjusting screw on the top of pilot valve. When adjusting is done, fasten the lock nut. Then you’ll got set-difference for the pressure no matter how the pressure of pipe system changes.  

c.       主阀的动作速度可由针型阀(球阀)进行调整,正常情况下出厂前已经调好,不需要进行调整。

Adjust needle valve (ball valve) can achieve different movement speed for the basic valve. Normally, it’s has been adjusted well before delivery. No further adjusting suggested if no special notice.

 

6.      常见故障及解决方法:Common problems and proposed solutions

常见故障

Common Problems

解决方法

Proposed Solutions

分、集水器(供、回水管)之间的压差小于设定值且调不上去。

Pressure difference is smaller than set-value and dose not reach the set-difference.

a.       主阀或导阀密封面有杂物。

Check if any sundry on the sealing surface of basic valve or pilot valve.

b.      主阀或导阀密封面损坏。

Check if any damage on the sealing surface of basic valve or pilot valve.

c.       针型阀(球阀)1是否被完全关闭或接近关闭,如是,则打开即可;

Check if needle valve (ball valve) No.1 was closed or almost closed. If yes, please open it.

分、集水器(供、回水管)之间的压差大于设定值且调不下去。

Pressure difference is bigger than set-value and dose not reach the set-difference.

a. 检查出口球阀6是否关闭,如是,则打开即可;

Check if ball valve No.6 at outlet was closed. If yes, please open it.

b. 检查导阀是否被堵塞,排除即可;

Check if there’s any block for pilot valve.

 

来源:济南泉金管道配件有限公司
济南泉金管道配件有限公司
董光朋
经营模式 :
经销批发
所在地区 :
山东省 济南市 天桥区 太平庄工业园

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