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西安邁克管道介紹25公斤級閥門邁克閥門壓差旁通閥

發布時間:2021-04-21人氣:0

本文來自西安邁克管道科技有限公司(邁克管件西安總代理陜西總代理)

SK780X型壓差旁通平衡閥

SK780X Pressure Differential By-pass Balancing Valve

 

1.      產品概述:Statement:

SK780X型壓差旁通平衡閥是一款利用管道自身液壓為驅動源的隔膜式水力控制閥。通過平衡分、集水器(供、回水管)間的壓差保證空調冷凍、供暖系統中機組的流量基本恒定、水泵運行工況穩定,避免個別支路流量的改變對其他支路流量產生影響,有利于空調暖通系統運行的穩定性,保證流過冷凍機組(鍋爐)的流量滿足額定流量要求,保障冷凍機組(鍋爐)的安全、高效運行。

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型壓差旁通平衡閥由壓差平衡導閥、針型閥(或球閥)、小型過濾器、球閥等組成。

 

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型壓差旁通平衡閥并聯于分、集水器(供、回水管)間,水流由分水器(供水管)從閥門進水口連續地通過針型閥(或球閥)1進入上控制腔2,導閥3分別通過導管4和導管5接入分、集水器(供、回水管),感應兩邊壓力,根據兩邊不同時段的壓力差控制導閥3的開度。壓差較高則導閥3開啟度增大,上控制腔2內壓力相對減小,則主閥開度增大,旁通管水流增大、彌補用戶端流量的不足,平衡整個系統流量;壓差較低則導閥3在彈簧的作用下開啟度減小,上控制腔2內壓力增大,則主閥開度減小,旁通管水流減小、彌補用戶端流量的不足,平衡整個系統流量。

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.      產品特性及優勢:Property and advantages:

l  系統壓力驅動——閥門獨立操作、利用管道能源,節能環保;

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

l  雙腔式設計——能源消耗低,啟閉平穩、無壓力波動,膜片有依托受到良好保護;

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  觸角式感應導管——壓差平衡導閥的觸角式導管4和5,分別接入分、集水器(供、回水管),導閥感應更加靈敏、可靠,調節準確;

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  內部節流孔——主閥下控制腔與閥后出口連通的內部節流孔可使閥門反應更加平緩,保持閥后穩定,避免管道振動及噪音;

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——閥門采用直流式流道設計,閥門全開時流道有效過流面積相當于閥門公稱通道面積、流通能力強、水流損失小,流道設計合理,不易產生紊流、湍流等有害流態,減少汽蝕危害;

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

l  長節距導向——閥桿運動采用長節距導向,閥桿運動平穩、無間隙卡阻;

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

l  自平衡功能——閥瓣與閥桿連接采用大間隙配合,閥瓣在垂直于閥桿的平面上有一定的自由度,能自動平衡由于加工或裝配誤差造成閥座密封面與閥桿不垂直的缺陷,實現密封面的完好配合,達到零泄漏,即可減動壓又可減靜壓;

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  高球化率鑄造(球化率90%以上)——閥門原廠鑄造,采用先進的高球化率冶金技術鑄造,內在、外在質量均嚴格控制,隨爐試棒、材質資料,可溯追蹤;

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  內外高效防腐——閥門內件由不銹鋼、銅合金、優質橡膠等不銹材質組成,閥門內腔表面和外表面均進行環氧樹脂熱固性粉末噴涂,無毒、無嗅、無味。閥門整體符合GB/T17219-2001《生活飲用水輸配水設備及防護材料的安全性評價標準》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.      典型安裝示意圖:Typical installation illustration

 

 

 

 

5.      調試注意事項:Notes for installation and debugging

a.       壓差旁通控制閥在出廠前已經經過初步調試,但在系統運行時仍需根據不同設定值進行再次調試;

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

b.      通過觀察分、集水器(供、回水管)上的壓力表,根據設定的壓差值調整導閥3,調節導閥頂部的調節螺釘,順時針旋轉時壓差增加,逆時針旋轉時壓差加減小,根據設定的壓差值進行調節,調好后擰緊鎖緊螺母,此時壓差就會保證在設定的壓差值,而不論管道的壓力變化如何;

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.       主閥的動作速度可由針型閥(球閥)進行調整,正常情況下出廠前已經調好,不需要進行調整。

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.      常見故障及解決方法:Common problems and proposed solutions

常見故障

Common Problems

解決方法

Proposed Solutions

分、集水器(供、回水管)之間的壓差小于設定值且調不上去。

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

a.       主閥或導閥密封面有雜物。

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

b.      主閥或導閥密封面損壞。

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

c.       針型閥(球閥)1是否被完全關閉或接近關閉,如是,則打開即可;

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)之間的壓差大于設定值且調不下去。

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

a. 檢查出口球閥6是否關閉,如是,則打開即可;

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

b. 檢查導閥是否被堵塞,排除即可;

Check if there’s any block for pilot valve.

西安邁克管道科技有限公司是一家專業提供邁克管件,邁克管道(邁克管道陜西總代理,西安總代理)以及各種邁克閥門、建筑材料和消防器材的專業管道管件供應商,可根據用戶需求提供先進的產品、服務和解決方案。我公司經營的濟南邁克管件邁克管道承載著總部的優質特性,全力對邁克閥門邁克管件邁克管道等專注質量和價格的平衡,我們的邁克牌為中國著名商標,更多的是我們是管道管件行業中唯一一家中國著名商標,我們的產品質量在經過多年的實踐和發展中獲得最有價值的評論,得到各個行業中的贊同和推薦并且已經成為現代五金水暖、建材等批發商等最受歡迎的品牌。不僅如此,而且受到各大工程的青睞,受到國內許多廠家的歡迎和使用。

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