8.管網(wǎng)設(shè)計計算〔流量計算〕8.1熱水供給系統(tǒng)的管路流量依據(jù)給水系統(tǒng)的設(shè)計秒流量計算。住宅建筑熱水供給系統(tǒng)的設(shè)計秒流量應(yīng)按以下步驟和方法計算。①依據(jù)住宅配置的衛(wèi)生器具給水當(dāng)量、使用人數(shù)、用水定額、使用時數(shù)及小時變化系數(shù)，按下式計算出最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率：U q00 0.2

mKh3600〔%〕NTg式中：U——熱水供給管道的最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率，%；0q ——最高日用水定額；0m——每戶用水人數(shù)；K ——小時變化系數(shù)，冷水按下表計算表41～3hN ——每戶設(shè)置的衛(wèi)生器具給水當(dāng)量數(shù)；gT——用水時數(shù)，h；0.2——一個衛(wèi)生器具給水當(dāng)量的額定流量，L/s。1住宅、別墅的熱水小時變化系數(shù)Kh居住人數(shù)〔m〕≤10015020025030050010003000≥6000Kh5.124.494.133.883.703.282.862.482.342旅館的熱水小時變化系數(shù)Kh居住人數(shù)〔m〕≤150300450600900≥1200Kh6.845.614.974.584.193.903醫(yī)院的熱水小時變化系數(shù)Kh床位數(shù)〔m〕≤5075100200300500≥1000Kh4.553.783.542.932.602.231.954住宅最高日生活用水定額及小時變化系數(shù)住宅類別住宅類別衛(wèi)生器具設(shè)備標(biāo)準(zhǔn)普通住宅ⅠⅡⅢ有大便器、洗滌盆有大便器、洗臉盆、洗滌盆、洗衣盆、熱水器和淋浴設(shè)備有大便器、洗臉盆、洗滌盆、洗衣機、集中熱水供給〔或家用熱水機組〕和淋浴設(shè)備有大便器、洗臉盆、洗滌盆、洗衣機、灑水栓，家用熱水機組和淋浴設(shè)備用水定額/[L/(人·d)]85～150130～300小時變化系數(shù)Kh3.0～2.52.8～2.3180～3202.5～2.0別墅200～3502.3～1.8按下式算得出該管段的衛(wèi)生器具給水當(dāng)量的同時出流概率：1NgU Ng

N 10.49g

〔%〕式中：U——計算管段的衛(wèi)生器具給水當(dāng)量同時出流概率，%；c——對應(yīng)于不通U0的系數(shù)，查GB50015-2023《建筑給水排水設(shè)計標(biāo)準(zhǔn)》附表C中的表C；Ng——計算管段的衛(wèi)生器具給水當(dāng)量總數(shù)。③依據(jù)計算管段上的衛(wèi)生器具給水當(dāng)量同時出流概率，按下式計算得計算管段的設(shè)計秒流量：q 0.2UNg g

〔L/s〕qg

——計算管段的設(shè)計秒流量，L/s注：1.為了計算快速、便利，在計算出的U0后，即可依據(jù)計算管段的Ng值，從GB50015-2023《建筑給水排水設(shè)計標(biāo)準(zhǔn)》附表Dg 0 2.當(dāng)計算管段的衛(wèi)生器具給水當(dāng)量總數(shù)超過GB50015-2023《建筑給水排水設(shè)計標(biāo)準(zhǔn)》附表D的計算表中最大值時，其流量應(yīng)取最大用水平均秒流量，即q0.2UNg 0 ④有兩條或兩條以上具有不同最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率的給水支管的給水干管最大時衛(wèi)生器具給水當(dāng)量平均出流概率按下式計算：式中：U ——給水干管的衛(wèi)生器具給水當(dāng)量平均出流概率；0U ——支管的最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率；0iN ——相應(yīng)支管的衛(wèi)生器具給水當(dāng)量總數(shù)。gi集體宿舍、旅館、賓館、醫(yī)院、療養(yǎng)院、幼兒園、養(yǎng)老院、辦公樓、商場、客運站、會展中心、中小學(xué)教學(xué)樓、公共廁所等建筑熱水供給系統(tǒng)的設(shè)計秒流量應(yīng)按下式計算：qg

——計算管段的給水設(shè)計秒流量，L/s；N ——計算管段的衛(wèi)生器具給水當(dāng)量總數(shù)；g——依據(jù)建筑物用途而定的系數(shù)，應(yīng)按下表承受。注：1量作為設(shè)計秒流量。如計算值大于該管段上按衛(wèi)生器具給水額定流量累加所得流量值時流量值確定。0.5計，計算得到的q附g1.10L/s4.綜合樓建筑的值應(yīng)按加權(quán)平均法計算。依據(jù)建筑物用途而定的系數(shù)值〔值〕建筑物名稱α值建筑物名稱α值幼兒園、托兒所、養(yǎng)老院1.2醫(yī)院、療養(yǎng)院、療養(yǎng)所2門診部、診療所1.4集體宿舍、旅館、招待所、賓館2.5辦公樓、商場1.5客運站、會展中心、公共廁所3學(xué)校1.8工業(yè)企業(yè)的生活間、公共浴室、職工食堂或營業(yè)餐廳的廚房、體育場館運發(fā)動休息室、劇院的扮裝間、普通理化試驗室等建筑熱水供給系統(tǒng)的設(shè)計秒流量應(yīng)按式下計算：qg

——計算管段的給水設(shè)計秒流量，L/s；q0——同類型的一個衛(wèi)生器具給水額定流量，L/s；N0——同類型的衛(wèi)生器具個數(shù)；b——衛(wèi)生器具的同時給水分數(shù)，應(yīng)按表1-3注：1.如計算值小于該管段上一個最大衛(wèi)生器具給水定額流量時，應(yīng)承受一個最大的衛(wèi)生器具給水額定流量作為設(shè)計秒流量。21.2L/s1.2L/s1.2L/s1工業(yè)企業(yè)生活間、公共浴室、劇院扮裝間、體育館運發(fā)動休息室等衛(wèi)生器具同時給水分數(shù)同時給水分數(shù)/%衛(wèi)生器具名稱 工業(yè)企業(yè)公共浴室 劇院扮裝室生活間

體育場館運發(fā)動休息室洗滌盆〔池〕33151515洗手盆50505050洗臉盆、盥洗槽水嘴60～10060～1005080浴盆—50——無間隔淋浴器100100—100有間隔淋浴器8060～8060～8060～100大便器沖洗水箱30202020大便器自閉式?jīng)_洗閥2222小便器自閉式?jīng)_洗閥10101010小便器〔槽〕自動沖洗水箱100100100100凈身盆33———飲水器30～60303030小賣部洗滌盆—50—50注：健身中心的衛(wèi)生間，可承受本表體育場館運發(fā)動休息室的同時給水分數(shù)。2職工食堂、營業(yè)餐廳廚房設(shè)備同時給水分數(shù)廚房設(shè)備名稱同時給水分數(shù)%廚房設(shè)備名稱同時給水分數(shù)%污水盆〔池〕50器皿洗滌機90洗滌盆〔池〕70開水器50煮鍋60蒸汽發(fā)生器100生產(chǎn)性洗滌機40灶臺水嘴30100%同時給水，但不與廚房用水疊加。化驗水嘴名稱單聯(lián)化驗水嘴雙聯(lián)或三聯(lián)化驗水嘴

3試驗室化驗水嘴同時給水分數(shù)同時給水分數(shù)%科學(xué)爭論試驗室2030

生產(chǎn)試驗室3050熱水系統(tǒng)的熱水循環(huán)流量計算。全天供給熱水系統(tǒng)的循環(huán)流量，按下式計算：q式中：x——循環(huán)流量，L/h；Qs——配水管道系統(tǒng)的熱損失5t——配水管道的熱水溫度差，℃，依據(jù)系統(tǒng)大小確定，一般可采～10℃；9.管網(wǎng)的水力計算〔揚程、流速〕kg/。定時供給熱水的系統(tǒng)，應(yīng)按管網(wǎng)中的熱水容量每小時循環(huán)2～4次計算循環(huán)流量。管網(wǎng)熱水流速確實定。熱水管道內(nèi)的流速，宜按下表選用。熱水管道內(nèi)的流速公稱直徑公稱直徑DN/mm流速/〔m/s〕15～20≤0.825～40≤1.0≥50≤1.2熱水管道阻力確實定。熱水管道的沿程水頭損失可按下式計算，管道的計算內(nèi)徑應(yīng)考慮結(jié)垢和腐蝕引起過水?dāng)嗝婵s小的因素。式中:i——管道單位長度水頭損失，kPa/m；d——管道計算內(nèi)徑，m；iC——海澄-威廉系數(shù)，各種塑料管、內(nèi)襯〔涂〕塑料C 140；銅管、不銹鋼管C 130；襯水h h h泥、樹脂的鑄鐵管C 130；一般鋼管、鑄鐵管C 100。h h①熱水管道的配水管的局部水頭損失，宜按管道的連接方式，承受管〔配〕件當(dāng)量長度法計算。當(dāng)管道的管〔配〕件當(dāng)量長度資料缺乏時，可按以下管件的連接狀況，按管網(wǎng)的沿程水頭損失的百分數(shù)取值。管〔配〕件內(nèi)徑全都，承受三通分水時，取25％～30％；承受分水器時，取15%～20%。管〔配〕件內(nèi)徑略大于管道內(nèi)徑，承受三通分水時，取50%～60%；承受分水器分水時，去30%～35%。管〔配〕件內(nèi)徑略小于管道內(nèi)徑，承受三通分水時，取70%80%；承受分水器分水時，去35%～40%?！沧ⅲ郝菁y接口的閥門及管件的摩阻損失當(dāng)量長度可參照GB50015-2023《建筑給水排水設(shè)計標(biāo)準(zhǔn)》附表B〕②熱水管道上附件的局部阻力可參照以下計算。管道過濾器的局部水頭損失，宜取0.01MPa。管道倒流防止器的局部水頭損失，宜取0.025～0.04MPa。水表的水頭損失，應(yīng)選用產(chǎn)品所給定的壓力損失計算。在未確定具體產(chǎn)品時，可按以下狀況取用：住宅0.01MPa；建筑物或小區(qū)引入管上的水表，宜取0.03MPa。比例式減壓閥的水頭損失，閥后動水壓宜按閥后靜水壓的80%～90%確定。定。熱水回水管管徑熱水供水管管徑/mm20～253240506580100125150200熱水回水管管徑/mm202025324040506580100承受加壓泵供熱水時，應(yīng)依據(jù)系統(tǒng)總的花灑和水龍頭數(shù)量及同時使用率〔居民大約為0.2〕來確定最大小時供水量，依據(jù)該用水量來選擇水泵流量，DN150.2L/s0.15L/s依據(jù)最不利的用水點來確定水壓，一般集中使用的水龍頭或花灑應(yīng)有4m自動加壓泵它由水泵、氣壓罐、壓力開關(guān)組成。工作原理是：氣壓罐內(nèi)注滿空氣，當(dāng)用水點在用水時，供水管網(wǎng)壓力下降，壓力開關(guān)閉合，水泵啟動加壓給水。如用水量小于水泵流量，則水泵向氣壓罐內(nèi)注水，將空氣壓縮，當(dāng)?shù)竭_壓力開關(guān)設(shè)定的壓力值時，水泵停頓運行。當(dāng)用水點在用水時，由于空氣的膨脹作用，將氣壓罐內(nèi)的水頂出供使用。在供水管網(wǎng)壓力下降至

壓力開關(guān) 氣壓罐接水源 接供水管網(wǎng)水泵 自動加壓泵壓力開關(guān)的下限壓力值時，壓力開關(guān)閉合，水 圖64自動加壓泵原理示意圖泵運行。這種裝置能自動運行，且比較經(jīng)濟，但氣壓罐內(nèi)的空氣會漸漸地隨水跑掉，如不準(zhǔn)時補充空氣，會造成2m3的全天候使用冷、〔64〕變頻加壓系統(tǒng)該系統(tǒng)由變頻器、把握器、水泵、隔膜氣壓罐、機架等組成，它由變頻器依據(jù)供水壓力調(diào)整水泵馬達的電源濟和恒壓運行的目的〔見圖60〕水泵的總流量應(yīng)大于最大小時用水量的20%。

隔膜式氣壓罐32，總流量應(yīng)約等于最大小時用水量，另120%，以便用水量很少時開啟。

變頻把握器

壓力表

接供水管網(wǎng)加壓給水裝置

接水源

圖65變頻恒壓供水原理圖加壓泵水管網(wǎng)加壓供水，它有兩種方式：在水泵旁接旁通管，在用水過程中，由于用水量的

水源旁通閥

供水管旁通管變化，使多余的水通過旁通管產(chǎn)生回流，有效防止用水點不用水時或水用量很少時使水泵損壞。調(diào)整旁通閥可調(diào)整水的回流〔66〕在供水管的末端設(shè)回水管〔見圖67〕水泵揚程選擇：

圖66設(shè)旁通管的加壓給水裝置原理圖承受上行下給供水方式的其水泵揚程選擇10~15m即可，承受下行上給供水方式的其水泵揚程應(yīng)進展水頭損10m4.4.旁通管管徑及回水管管徑確實定：DN502回水管管徑管管〕2~3＃。11.表格〔QDN15DN20DN25DN32DN40DN50DN70(L/h)(L/s)RVRVRVRVRVRVRV180.0050.650.040.120.020.040.010.010.01- - - - - -360.0102.160.070.410.040.120.020.030.030.010.01 - - - -540.0154.420.110.830.050.230.030.050.050.030.010.010.01--720.0207.390.151.370.070.380.040.090.090.040.020.010.010.010.01900.02511.040.182.030.090.560.050.130.130.070.020.020.010.010.011080.03015.370.222.810.110.770.060.180.030.090.030.030.020.010.011260.03520.370.253.691.131.010.070.230.040.120.030.030.020.010.011440.04026.040.294.691.141.280.080.300.050.150.030.040.020.010.011620.04532.360.335.800.161.580.100.360.050.180.040.050.020.020.011800.05039.350.367.010.181.900.110.440.060.220.040.060.030.020.021980.05547.000.408.340.202.250.120.520.060.260.050.070.030.020.022160.06055.310.449.760.222.630.130.600.070.300.050.090.030.020.022340.06564.580.4711.300.243.030.140.690.070.340.060.100.030.030.022520.07074.900.5112.940.253.460.150.790.080.390.060.110.040.030.022700.07585.980.5414.690.273.920.160.890.090.440.060.130.040.040.022880.08097.820.5916.540.294.400.171.000.090.490.070.140.040.040.023060.085110.430.6218.500.314.910.181.110.100.550.070.160.040.040.03QDN15DN20DN25DN32DN40DN50DN70(L/h)(L/s)RVRVRVRVRVRVRV3240.090123.810.6520.560.335.450.191.230.100.600.080.170.050.050.033420.095137.940.6922.730.346.010.201.350.110.660.080.190.050.050.033600.100152.850.7325.000.366.600.211.480.120.730.090.210.050.060.033960.110184.940.8029.860.407.850.231.750.130.860.090.240.060.070.034320.120220.100.8735.130.439.210.252.050.141.000.100.280.060.080.044680.130258.310.9441.020.4710.670.282.360.151.160.110.330.070.090.045040.140299.581.0247.570.5112.230.302.700.161.320.120.370.070.110.045400.150343.911.0954.610.5413.890.323.060.171.490.130.420.080.120.055760.160391.291.1662.130.5815.650.343.440.181.680.140.470.080.130.056120.170441.731.2370.140.6217.520.363.840.201.870.150.520.090.150.056480.180495.221.3178.640.6519.480.384.260.212.070.150.580.090.160.056840.190551.781.3887.620.6921.550.404.700.222.280.160.640.100.180.067200.200611.391.4597.090.7223.720.425.160.232.500.170.700.100.200.069000.250955.291.8151.700.9136.750.537.760.293.750.211.040.130.290.0810800.3001357.622.18218.441.0952.930.6410.880.355.230.261.440.150.400.0912600.3501872.622.54297.321.2772.040.7414.490.406.950.301.900.180.530.1114400.4002445.552.90338.341.4594.090.8518.650.468.900.342.430.200.670.1216200.4503095.153.26491.501.63119.080.9523.600.5211.080.393.010.230.830.1418000.500606.781.81147.011.0629.140.5813.490.433.650.251.000.1519800.550734.211.99177.891.1735.260.6316.210.474.340.281.190.1721600.600873.212.17211.701.2741.960.6919.290.525.100.311.390.1823400.6501025.472.35248.451.3849.290.7522.640.565.910.331.610.2025200.7001189.302.54288.151.4857.110.8126.260.606.780.361.840.2127000.7501365.262.72330.781.5965.560.8630.140.647.710.382.080.2328800.8001553.372.90376.361.7074.590.9234.300.698.700.412.340.2430600.8501753.613.08424.871.8084.210.9838.720.739.750.432.620.2632400.9001965.983.26476.331.9194.401.0443.140.7710.860.462.910.2734200.9502190.493.44530.722.02105.181.0948.360.8212.100.483.910.2936001.000588.062.12116.551.1553.590.8613.410.513.530.3037801.050648.332.23128.491.2159.080.9014.790.533.870.3239601.100711.552.33141.021.2764.840.9416.230.564.210.3341401.150777.712.44154.131.3270.870.9917.740.594.580.3543201.200846.802.55167.831.3877.171.0319.310.614.950.3645001.250918.842.65182.111.4483.731.0720.950.645.340.3846801.300993.822.76196.971.5090.561.1222.660.665.750.3948601.3501071.742.86212.411.5597.661.1624.440.696.170.4150401.4001152.602.97228.431.61105.031.2026.290.716.600.4152201.4501236.393.08245.041.67112.671.2528.200.747.050.4454001.5001323.133.18262.231.73120.571.2930.170.767.510.4555801.5501412.813.29280.011.79128.741.3332.220.798.020.4757601.6001505.133.39298.361.84137.181.3734.330.818.550.4859401.6501600.933.50317.301.90145.891.4236.510.849.090.5061201.700--336.821.96154.871.4638.760.879.650.51QDN15DN20DN25DN32DN40DN50DN70(L/h)(L/s)RVRVRVRVRVRVRV63001.750356.932.02164.111.5041.070.8910.220.5364801.800377.622.07173.621.5543.450.9210.820.5466601.850398.892.13183.401.5945.900.9410.430.5668401.900420.742.19193.451.6348.410.9712.050.5770201.950443.172.25203.761.6851.000.9912.690.5972002.000466.192.30214.351.7253.641.0213.350.6075602.100513.982.42236.321.8059.141.0714.720.6379202.200564.092.53259.361.8964.911.1216.160.6682802.300616.542.65283.481.9870.941.1717.660.6986402.400671.322.76308.462.0677.251.2219.230.7290002.500728.432.88334.922.1583.821.2720.870.7593602.600787.872.99362.252.2390.661.3222.570.7897202.700849.643.11390.652.3297.771.3824.340.81100802.800913.743.22420.122.41105.141.4326.170.84104402.900980.173.34450.672.49112.791.4828.080.87108003.0001048.933.46284.282.58120.701.5330.050.90111603.100--514.972.66128.881.5832.080.93115203.200--548.732.75137.331.6334.190.96118803.300--583.562.83146.001.6836.360.99122403.400--619.472.92155.081.7338.591.02126003.500656.443.01164.281.7840.901.05129603.600694.493.09173.811.8343.271.08133203.700733.613.18183.601.8845.711.12136803.800773.803.26193.651.9448.211.15140403.900815.063.35203.981.9950.781.18144004.000857.393.44214.582.0453.421.21147604.100--225.442.0956.121.24151204.200--236.572.1458.891.27154804.300--247.972.1961.731.30158404.400--259.642.2464.631.33162004.500271.572.2967.611.36165604.600283.782.3470.641.39169204.700296.252.3973.751.42172804.800308.992.4476.291.45176004.900322.002.5080.161.48180005.000335.272.5583.461.51183605.100348.822.6086.841.54187205.200362.632.6590.271.57190805.300376.712.7093.781.60194405.400391.062.7597.351.63198005.500405.682.80100.991.66202305.600420.572.85104.701.69205205.700435.722.90108.471.72208805.800451.142.95112.311.75212405.900466.843.00116.221.78Q(L/h)(L/s)

DN15R V

DN20R V

DN25R V

DN32R V

DN40R V

DN50R V

DN70R V216006.000482.793.06120.191.81219606.100499.023.11124.231.84223206.200515.523.16128.331.87226806.300532.283.21132.511.90230406.400549.313.26136.751.93234006.500566.613.31141.051.96237606.600584.183.36145.431.99214206.700602.023.41149.872.02244806.800620.123.46154.382.05248406.900- -158.952.08252007.000163.592.11255607.100168.302.14259207.200173.072.17262807.300177.912.20266407.400182.822.23270007.500187.792.26273607.600192.842.29277207.700197.942.32280807.800203.122.35284407.900208.362.38288008.000213.672.41291608.100219.042.44295208.200224.492.47298808.300229.992.50302408.400235.572.53306008.500241.212.56309608.600246.922.59313208.700252.702.62316808.800258.542.65320408.900264.452.68324009.000270.422.71345009.100276.472.74349209.200282.582.77352809.300288.752.80356409.400295.002.83342009.500301.312.86345609.600307.682.89349209.700314.132.92352809.800320.642.95356409.900327.212.983600010.000333.863.013690010.250350.763.093780010.500368.083.163870010.750385.813.243960011.000403.973.31續(xù)表QDN80DN100DN125DN150DN175DN200(L/h)(L/s)RVRVRVRVRVRV1080.030--1260.035--1440.0400.010.011620.0450.010.011800.0500.010.011980.0550.010.012160.0600.010.012340.0650.010.012520.0700.010.012700.0750.020.022880.0800.020.02--3060.0850.020.020.010.013240.0900.020.020.010.013420.0950.020.020.010.013600.1000.030.020.010.013960.1100.030.020.010.014320.1200.040.030.010.014680.1300.040.030.010.015040.1400.050.030.010.025400.1500.050.030.010.025760.1600.060.030.020.020.010.016120.1700.060.040.020.020.010.016480.1800.070.040.020.020.010.016840.1900.080.040.020.020.010.017200.2000.090.040.020.020.010.029000.2500.130.050.030.030.010.020.010.01--10800.3000.170.060.040.040.020.020.010.02--12600.3500.230.070.060.040.020.030.010.02--14400.4000.290.080.070.050.030.030.010.020.010.0216200.4500.350.100.090.050.030.040.010.020.010.0218000.5000.420.110.110.060.040.040.020.030.010.020.010.0219800.5500.500.120.130.070.050.040.020.030.010.020.010.0221600.6000.590.130.150.070.050.050.020.030.010.030.010.0223400.6500.680.140.170.080.060.050.030.040.010.030.010.0225200.7000.770.150.190.080.070.060.030.040.020.030.010.0227000.7500.880.170.220.090.080.060.030.040.020.030.010.0328800.8000.980.180.250.100.090.060.040.040.020.040.010.0330600.8501.100.190.270.100.100.070.040.050.020.040.010.0332400.9001.220.200.300.110.110.070.050.050.020.040.020.0334200.9501.340.210.330.110.120.070.050.050.030.040.020.0336001.0001.480.220.370.120.130.080.060.060.030.040.020.0437801.0501.610.230.400.130.140.080.060.060.030.050.020.0439601.1001.760.240.430.130.160.090.070.060.030.050.020.0441401.1501.910.250.470.140.170.090.070.060.040.050.020.0443201.2002.060.260.510.140.180.090.080.070.040.050.030.04QDN80DN100DN125DN150DN175DN200(L/h)(L/s)RVRVRVRVRVRV45001.2502.220.270.550.150.200.100.080.070.040.050.030.0446801.3002.380.280.590.160.210.100.090.070.050.060.030.0548601.3502.560.290.630.160.230.110.090.070.050.060.030.0550401.4002.730.300.670.170.240.110.100.080.050.060.030.0552201.4502.920.310.710.170.260.110.110.080.060.060.030.0554001.5003.100.320.760.180.270.120.110.080.060.070.040.0555801.5503.300.330.860.190.290.120.120.090.060.070.040.0557601.6003.500.340.850.190.310.130.130.090.070.070.040.0559401.6503.700.350.900.200.320.130.130.090.070.070.040.0661201.7003.920.360.950.200.340.130.140.090.070.070.040.0663001.7504.130.371.000.210.360.140.150.100.080.070.050.0664801.8004.350.381.050.220.380.140.160.100.080.080.050.0666601.8504.580.391.110.220.400.150.170.100.090.080.050.0668401.9004.820.401.160.230.420.150.170.100.090.080.050.0670201.9505.060.411.220.230.440.150.180.110.090.080.050.0772002.0005.300.421.280.240.460.160.190.110.100.080.060.0775602.1005.800.451.400.250.500.170.210.120.110.090.060.0779202.2006.360.471.520.260.540.170.220.120.120.090.070.0782802.3006.950.491.650.280.590.180.240.130.130.100.070.0886402.4007.570.511.790.290.630.190.260.130.140.100.080.0890002.5008.210.531.930.300.680.200.280.140.150.110.080.0893602.6008.880.552.070.310.730.210.300.140.160.110.090.0997202.7009.580.572.220.320.780.210.320.150.170.110.100.09100802.80010.300.592.380.340.840.220.350.150.180.120.100.09104402.90011.050.612.540.350.890.230.370.160.190.120.110.10108003.00011.830.642.700.360.950.240.390.170.200.130.120.10111603.10012.630.662.870.371.010.240.420.170.210.130.120.10115203.20013.460.683.050.381.070.250.440.180.230.130.130.11118803.30014.310.703.220.401.130.260.470.180.240.140.140.11122403.40015.190.723.410.411.200.270.490.190.250.140.150.11126003.50016.100.743.600.421.260.280.520.190.270.150.150.12129603.60017.030.763.790.431.330.280.540.200.280.150.160.12133203.70017.990.783.980.441.400.290.570.200.290.160.170.12136803.80018.980.814.200.461.470.310.600.210.310.160.180.13140403.90019.990.834.430.471.540.310.630.210.320.160.190.13144004.00021.030.854.660.481.610.320.660.220.340.170.190.13147604.10022.090.874.890.491.690.320.690.230.350.170.200.14151204.20023.180.895.130.501.760.330.720.230.370.180.210.14154804.30024.300.915.380.521.840.340.750.240.390.180.220.14158404.40025.450.935.630.531.920.350.790.240.400.190.230.15162004.50026.620.955.890.542.010.360.820.250.420.190.240.15165604.60027.810.986.160.552.090.360.850.250.440.190.250.15169204.70029.031.006.430.560.170.370.890.260.450.200.260.16172804.80030.281.026.710.580.260.380.920.260.470.200.270.161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60.657202320.000116.422.4038.361.5814.801.107.230.843.950.677380020.500122.312.4640.301.6215.551.137.600.864.150.697560021.000128.352.5242.291.6616.321.167.970.884.360.707740021.500134.542.5844.331.7017.101.188.360.904.570.727920022.000140.872.6446.221.7417.911.218.750.934.780.748100022.500147.342.7048.551.7818.371.249.150.955.000.758280023.000153.962.7650.731.8219.571.279.560.975.230.778460023.500160.732.8252.961.8620.431.309.980.995.460.798640024.000167.642.8855.241.8921.311.3210.411.015.690.808820024.500174.702.9457.571.9322.211.3510.851.035.930.82QDN80DN100DN125DN150DN175DN200(L/h)(L/s)RVRVRVRVRVRV9000025.000181.903.0059.941.9723.131.3811.301.056.180.849180025.500189.253.0662.362.0124.061.4111.751.076.430.859360026.000196.753.1264.832.0525.011.4312.221.096.680.879540026.500204.393.1867.352.0925.981.4612.691.116.940.899720027.000212.173.2469.912.1326.971.4913.181.147.200.909900027.500220.103.3072.532.1727.981.5213.671.167.470.9210080028.000228.183.3675.192.2129.011.5414.171.187.750.9410260028.500236.403.4277.902.2530.061.5714.681.208.030.9510440029.000244.773.4880.662.2931.121.6015.201.228.310.9710620029.500--83.462.3332.201.6315.731.248.600.9910800030.00086.312.3733.301.6516.271.268.891.0010980030.50089.222.4134.421.6816.811.289.191.0211160031.00092.162.4535.561.7117.371.309.501.0411340031.50095.162.4936.721.7417.941.329.801.0511520032.00098.212.5337.891.7618.511.3510.121.0711700032.500101.302.5739.081.7919.091.3710.441.0911880033.000104.442.6140.301.8219.681.3910.761.1012060033.500107.632.6441.531.8520.291.4111.091.1212240034.000110.872.6842.771.8720.901.4311.421.1412420034.500114.152.7244.041.9021.511.4511.761.1612600035.000117.482.7645.331.9322.141.4712.101.1712780035.500120.862.8046.631.9622.781.4912.451.1912960036.000124.292.8447.961.9823.431.5112.811.2113140036.500127.772.8849.302.0124.081.5313.611.2213320037.000131.292.9250.662.0424.751.5613.531.2413500037.500134.872.9652.032.0725.421.5813.901.2613680038.000138.493.0053.432.0926.101.6014.271.2713860038.500142.163.0454.852.1226.791.6214.651.2914040039.000149.643.0856.282.1527.491.6415.031.3114220039.500149.643.1257.732.1828.201.6615.421.3214400040.000153.453.1659.202.2028.921.6815.811.3414580040.500157.313.2060.692.2329.651.7016.211.3614760041.000161.223.2462.202.2630.381.7216.611.3714940041.500165.173.2863.732.2931.131.7517.021.3915120042.000169.183.3265.272.3131.891.7717.431.4115300042.500173.233.3566.842.3432.651.7917.851.4215480043.000177.333.3968.422.3733.421.8118.271.4415660043.500181.483.4370.022.4034.201.8318.701.4615840044.000185.673.4771.642.4234.991.8519.131.4716020044.500--73.272.4535.791.8719.571.4916202345.00074.932.4836.601.8920.011.5116380045.50076.602.5137.421.9120.461.5216560046.00078.302.5438.251.9320.911.5416740046.50080.012.5639.081.9621.371.5616920047.00081.742.5939.931.9821.831.57QDN80QDN80DN100DN125DN150DN175DN200(L/h)(L/s)RVRVRVRVRVRV17100047.50083.492.6240.782.0022.291.5917280048.00085.252.6541.652.0222.771.6117460048.50087.042.6742.522.0423.241.6217640049.00088.842.7043.402.0623.731.6417820049.50090.672.7344.292.0824.211.6618000050.00092.512.7645.192.1024.701.6718180050.50094.372.7846.102.1225.201.6918360051.00096.242.8147.012.1425.701.7118540051.50098.142.8447.942.1726.211.7218720052.000100.052.8748.882.1926.721.7418900052.500101.992.8949.822.2127.241.7619080053.000103.942.9250.772.2327.761.7719260053.500105.912.9551.742.2528.281.7919440054.000107.902.9852.712.2728.811.8119620054.500109.913.0053.692.2929.351.8219800055.000111.933.0354.682.3129.891.8419980055.500113.983.0655.682.3330.441.8620230056.000116.043.0956.682.3630.991.8820340056.500118.123.1157.702.3831.541.8920520057.000120.223.1458.732.4032.101.9120700057.500122.343.1759.762.4232.671.9320880058.000124.483.2060.812.4433.241.9421060058.500126.633.226