進(jìn)口電動(dòng)法蘭球閥 軟密封 硬密封法蘭芯球閥

品牌：retz瑞茨/我們一直致力于流體控制和測(cè)控領(lǐng)域的持續(xù)創(chuàng)新，始于2005……
(開(kāi)關(guān)型,調(diào)節(jié)型)進(jìn)口電動(dòng)法蘭球閥是由電動(dòng)執(zhí)行器與高性能球閥組成。適用于兩位切斷、調(diào)節(jié)的場(chǎng)合 (cast steel, stainless steel) imported electric flange ball valve is composed of electric actuator and high-performance ball valve. applicable to two-position cut-off and adjustment occasions
根據(jù)結(jié)構(gòu)形式可分為：電動(dòng)軟密封球閥和電動(dòng)硬密封球閥兩類。軟密封球閥主要適用于溫度低于250度以內(nèi)的介質(zhì)。硬密封球閥主要適用于250度以上的介質(zhì) according to the structure, it can be divided into two types: electric soft seal ball valve and electric hard seal ball valve. soft seal ball valve is mainly applicable to the medium with temperature below 250 ℃. hard seal ball valve is mainly applicable to medium above 250 ℃
電動(dòng)法蘭球閥密封性能優(yōu)良、流通能力大、裝卸維護(hù)方便、流阻小、密封可靠，甚至切斷。電動(dòng)法蘭球閥體積小、重量輕、推力大、功能強(qiáng)、伺服放大器內(nèi)裝、操作方便、可靠性高，球閥與執(zhí)行器采用直連方式，內(nèi)置伺服系統(tǒng)，無(wú)須另配伺服放大器，輸入輸出信號(hào)4-20ma及220vac電源即可控制運(yùn)轉(zhuǎn)。電動(dòng)法蘭球閥具有連線簡(jiǎn)單、結(jié)構(gòu)緊湊、動(dòng)作穩(wěn)定可靠等優(yōu)點(diǎn) the electric flanged ball valve has excellent sealing performance, large flow capacity, convenient handling and maintenance, small flow resistance, reliable sealing and even cut-off. electric flanged ball valve has small size, light weight, large thrust, strong function, built-in servo amplifier, convenient operation and high reliability. the ball valve and actuator are directly connected, with built-in servo system, without additional servo amplifier. the input and output signals can be controlled by 4-20ma and 220vac power supply. electric flange ball valve has the advantages of simple connection, compact structure, stable and reliable action, etc
產(chǎn)品特點(diǎn) product features
（1）流體阻力小，即使是縮徑球閥，其流體阻力也相當(dāng)小 the fluid resistance is small, even for the reduced diameter ball valve, its fluid resistance is also quite small
（2）止推軸承減小閥桿摩擦力矩，可使閥桿長(zhǎng)期操作平衡靈活 the thrust bearing reduces the friction torque of the valve rod, which can make the valve rod balance and flexible for long-term operation
（3）閥座密封性能好，采用聚四氟乙烯等材料制成的密封圈，結(jié)構(gòu)易于密封，而且球閥的閥封能力隨著介質(zhì)壓力的增設(shè)而增大 the sealing performance of the valve seat is good. the sealing ring made of polytetrafluoroethylene and other materials is easy to seal, and the sealing capacity of the ball valve increases with the increase of the medium pressure
（4）閥桿密封可靠，由于閥桿只作旋轉(zhuǎn)運(yùn)動(dòng)而不做升降運(yùn)動(dòng)，閥桿的填料密封不易破壞，且密封能力隨著介質(zhì)的壓力增設(shè)而增大 the valve rod is sealed reliably. because the valve rod only rotates without lifting, the packing seal of the valve rod is not easy to be damaged, and the sealing capacity increases with the increase of medium pressure
（5）由于聚四氟乙烯等材料具有良好的自潤(rùn)滑性，與球體的摩擦損失小，幫球閥的使用壽命長(zhǎng) due to the good self-lubrication of ptfe and other materials, the friction loss with the ball is small, and the service life of the ball valve is long
（6）下裝式閥桿和閥桿頭部凸階防止閥桿噴出，如火災(zāi)造成閥桿密封破壞，凸階與閥體間還可形成金屬接觸，確保閥桿密封 the bottom-mounted valve stem and the convex step of the valve stem head prevent the valve stem from spraying out. if the valve stem seal is damaged by fire, the metal contact between the convex step and the valve body can also be formed to ensure the valve stem seal
進(jìn)口電動(dòng)法蘭球閥主要零件材料 material of main parts
零件名稱 材料
閥體、閥蓋 wcb 304(cf8) 316(cf8m) 316l(cf3m)
球體 2cr13+氮化處理 304 316 316l
閥桿 2cr13 304 316 316l
閥座密封圈 ptfe、碳素纖維＋ptfe、對(duì)位聚苯
填料 v型ptfe、柔性石墨
技術(shù)參數(shù)及性能 technical parameters and performance
公稱通徑dn(mm) 15 20 25 32 40 50 65 80 100 125 150 200
額定流量系數(shù)kv 21 38 72 112 170 273 384 512 940 1452 2222 3589
公稱壓力(mpa) pn1.6、2.5、4.0、6.4 mpa；ansi 150、300lb
允許壓差(mpa) ≤公稱壓力
閥體形式 兩段式鑄造球閥
連接形式 法蘭式
閥芯形式 "o"型球形閥芯
密封填料 v型聚四氟乙烯填料、柔性石墨填料等
流量特性 近似快開(kāi)型
動(dòng)作范圍 0～90°
泄露量q 小于額定kv0.01%
基本誤差 ±1%
回差 ±1%
死區(qū) ≤1%(可調(diào))
可調(diào)范圍 250：1 350：1
配置執(zhí)行機(jī)構(gòu) 角行程電動(dòng)執(zhí)行機(jī)構(gòu)
控制方式 開(kāi)關(guān)到位燈(開(kāi)關(guān)兩位控制)、無(wú)源觸點(diǎn)信號(hào)、1/5k電位計(jì)、智能調(diào)節(jié)(4～20ma模擬量信號(hào)控制)
進(jìn)口電動(dòng)法蘭球閥執(zhí)行器技術(shù)參數(shù) technical parameters of actuator
電源電壓 ac220/380v，50/60hz
輸出力矩 50n•m～2000n•m
動(dòng)作范圍 0～90° 0～360°
動(dòng)作時(shí)間 15秒/30秒/60秒
保護(hù)裝置 過(guò)熱保護(hù)
環(huán)境溫度 -30°～60°
手動(dòng)操作 同附帶手柄操作
限位 電氣、機(jī)械二重限位
防護(hù)等級(jí) 相當(dāng)于ip-65
防爆等級(jí) exdii bt4；特殊要求可定制exdii bt6
位置測(cè)量 可選裝開(kāi)關(guān)或電位計(jì)
驅(qū)動(dòng)電機(jī) 8w/e
進(jìn)線接口 pe1/2〞進(jìn)線線鎖