概要 GENERAL
520D系列角阀采用了多级降压式套筒，完全控制了流经阀内件的流体流速，故可大幅度降低高压差气体或蒸汽所产生的噪音，也可有效防止液体产生气蚀现象，是一种无气蚀损伤、低噪音、控制流体稳定的经济型角阀。The Series 520D valves are engineered specifically for critical anti-cavitation and low noise applications on liquids, gases or steam. Multi-stage cage controls flowing velocities in the valve trim by forcing the process fluid to follow a tortuous path of right-angle turns. The resistance to flow provided by these turns reduces fluid velocities significantly. Therefore, a vena contracta is never formed in the trim and noise and cavitation are stopped before they can start.
标准规格 STANDARD SPECIFICATIONS
本体部BODY
形式Type 流体压力平衡型阀芯Pressure balanced plug type宁夏师范学院学报
公称通径Body size 1"～18"（25A～450A即DN25～DN450）
阀芯形状Plug form 流体压力平衡型阀芯Pressure balanced plug type
流量特性Characteristics 线性、改良线性、改良等百分比Linear , Modified Linear , Modified EQ%
Trim treatment
See Tables 1 for hardening treatment and operating temperature.
黄军导航
公称压力Body rating ANSI Class 900、1500、 2500
连接方式Body
Connections
法兰型（RF、RTJ），焊接型（SW、BW，其法兰距请与KOSO确认。）
Flanged（RF、RTJ），Weld ends（SW、BW, Face to Face dimension please
consult with us. ）
法兰距Face to Face
Dimension
请参见第30～39页。
See pages 30～39.
阀体及上阀盖材质Body & Bonnet
Material
SCPH2/WCB/A105, SCPH21/WC6/A182-F11, SCPH32/WC9/A182-F22,
SCPL1/LCB, SCS13A/CF8/SUSF304, SCS14A/CF8M/SUSF316
公称通径2"及以下阀体为锻件；3"以上阀体标准为铸件，也可选择锻件。各种材质的使
用温度・压力范围，请参见表1，表2。
Forging : 2" and under, Casting : 3" and over, also can choose forging.
As to the operating pressure-temperature limitation for each material, see Tables 1 and
2.
上阀盖形式Bonnet type 标准型Standard type:－17～＋230℃
散热片型Fin-Extension type : －45～－17℃或者超过230℃的场合
－45～under －17℃ or over ＋230℃
加长型 Long-Extension type : －196～－45℃
但必须注意各材质的使用温度・压力范围。
Note : The allowable operating pressure-temperature limitation for each material.
填料Packing 聚四氟乙烯碳纤维、柔性石墨。
各种填料的使用温度・压力范围，请参见图3。Teflon carbon fiber, Grafoil, See Fig. 3 for selection.
垫圈Gasket 缠绕式垫圈（聚四氟乙烯／SUS316、柔性石墨／SUS316）
各种垫圈的使用温度・压力范围，请参见图4。
Spiral wound metal, with Grafoil or Teflon filler. See Fig. 4 for selection.
表面涂层Painting color 银灰（环氧树脂）。但是阀体材质为不锈钢时，本体部不加涂层。
Munsell N-6（Epoxy resin group）is standard. In the case of stainless steel body, no painting is standard.
执行机构ACTUATOR
性能PERFORMANCE
额定C v值Rated Cv 请参见表3。See Table 3.
流量特性Flow characteristics 线性、改良线性、改良等百分比Linear , Mod. Linear , Mod. EQ%可调比R Rangeability 请参见表3。See Table 3.
阀座泄漏量Seat Leakage 请参见表1。See Table 1.
允许压差Allowable pressure drops 请参见表4。See Table 4.
特殊规格（有偿）OPTIONAL SPECIAL SPECIFICATIONS (Additional cost is required)
本体部特殊检查Special testing for body 材料检查{液体渗透探伤检查（PT）、放射线检查（RT）}、流量特性检查、低温试验、蒸汽试验
Material certificate, Liquid penetrant testing, Radiographic testing,
Flow characteristic testing, Low temperature testing, Steam testing.
本体部特殊清洗
Special cleaning for body 完全禁油、除水处理
Oxygen clean, Oil-free, Water-free
本体部及执行机构特殊规格Special specification for body and actuator 防砂、防尘型、防盐腐蚀型、寒冷地区用、热带地区用、无铜处理、特殊空气配管及特殊气接头、真空工作条件用、接触大气部分的螺栓、螺母采用不锈钢、指定涂层
Sand and Dust proof, Salty environment proof, Cold area proof, Tropical area proof，Copper-free alloy, Special piping and fitting, Vacuum service proof,
SUS bolt and nut for exposed parts, Non-standard painting.
视频模块认证Authorization 获得高压气体认定法的认定 Japanese government authorization for high pressure gas.
表1 阀体、阀内件材质组合及使用温度范围・阀座允许泄漏量
Table 1 BODY/TRIM STANDARD MATERIAL COMBINATION, OPERATING TEMPERATURE AND SEAT LEAKAGE.
当阀座泄漏率要达到ANSI CLASS Ⅴ时，请与KOSO确认。
When ANSI CLASS Ⅴfor seat leakage is required, please consult with us.
● R.TFE : 强化聚四氟乙烯 Reinforced Teflon ●SS : 部分堆焊司太莱合金Stellite seat surface
● Hcr : 镀硬铬Hard chrome plated ●SF : 全部堆焊司太莱合金Stellite full surface
● HT : 热处理 Heat
treatment
表1-1阀体材质：碳钢
Table 1-1 BODY MATERIAL : CARBON STEEL
阀体材质Body material SCPH2/WCB/A105, SCPH21/WC6/F11, SCPH32/WC9/F22, SCPL1/LCB
材质 Material410SS 410SS 410SS 718 Inconel
多级降压式套筒
Multi-stage Cage 处理 Treatment HT HT HT HT
材质 Material SUS410 SUS410 SUS410 A182-F11 阀芯
Plug 处理 Treatment HT HT HT SF 材质 Material SUS316 SUS410 SUS410 A182-F11 阀座
Seat ring 处理 Treatment R.TFE HT HT SF 材质 Material R.TFE R.TFE
柔性石墨 Grafoil 柔性石墨 Grafoil
平衡密封环
Balance seal 垫环 Back ring SUS316SUS316————
垫圈 Gasket 材质 Material T/#1806GR T/#1806GR T/#1806GR T/#1806GR ANSI ClassⅥClassⅣClassⅣClassⅣ
阀座允许泄漏量
Seat Leakage Rated Cv×微气泡级bubble-tight0.01% 0.01% 0.01% SCPH2/WCB body － 5～＋200－ 5～＋230－ 5～＋425－ 5～＋425
SCPH21/WC6 body SCPH32/WC9 body － 5～＋200－ 5～＋230－ 5～＋425－ 5～＋565
使用温度
Operating
temperature ℃
SCPL1/LCB body －45～＋200－45～＋230－45～＋350——
注：公称通径2"及以下阀体为锻件；3"以上阀体标准为铸件，也可选择锻件。
个旧三中Note : Forging : 2" and under，Casting : 3" and over, Can also choose forging.
表1-2 阀体材质：不锈钢
Table 1-2 BODY MATERIAL : STAINLESS STEEL
阀体材质Body material SCS13A/A351-CF8/SUSF304, SCS14A/A351-CF8M/SUSF316
材质 Material SUS316 SUS316 SUS316 SUS316 SUS316 多级降压式套筒
Multi-stage Cage 处理 Treatment——————————材质 Material SUS316 SUS316 SUS316 SUS316 SUS316 阀芯
Plug 处理 Treatment Hcr Hcr+SS SF Hcr+SS SF 材质 Material SUS316 SUS316 SUS316 SUS316 SUS316 阀座
Seat ring 处理 Treatment R.TFE SS SF SS SF 材质 Material R.TFE R.TFE*① R.TFE*①柔性石墨 Grafoil 柔性石墨 Grafoil
平衡密封环
Balance seal 垫环 Back ring SUS316SUS316SUS316————
垫圈 Gasket 材质 Material T/#1806GR
/T/#9090
罗汉鱼天下T/#1806GR
/T/#9090
T/#1806GR
/T/#9090
T/#1806GR T/#1806GR
ANSI ClassⅥClassⅣClassⅣClassⅣClassⅣ
阀座允许泄漏量
Seat Leakage Rated Cv×微气泡级
开放式数控系统bubble-tight
0.01% 0.01% 0.01% 0.01% 使用温度Operating Temp. ℃－75～＋200－196～＋230－196～＋230－196～＋565－196～＋565
*①流体温度在－75℃以下的场合，平衡密封环的材质：Fluoroloy G ; 垫环材质：Elgiloy。
When the fluid temperature is below －75℃, the materials for the balance seal and the back ring will be Fluoroloy G and Elgiloy, respectively.
Table 2 BODY MATERIAL/OPERATING PRESSURE-TEMPERATURE RATING UNIT : MPa G
ANSI Class 900
ANSI Class 1500
ANSI Class 2500
温 度
Temp.
℃
SCPL1 LCB
SCPH2 A105 WCB
SCPH21 F11 WC6
SCPH32 F22 WC9
SCS13A
F304 CF8
SCS14A F316 CF8M
SCPL1 LCB
SCPH2A105WCB
SCPH21F11 WC6
SCPH32F22 WC9
SCS13A F304 CF8
SCS14A F316 CF8M
SCPL1 LCB
SCPH2 A105 WCB
SCPH21 F11 WC6
SCPH32F22 WC9
SCS13A F304 CF8
SCS14A
F316 CF8M
-196~38 — — — —
14.88 14.88 — — —
— 24.7924.79—
— — — 41.33
41.34-45~38 14.35 — — — 14.88 14.88 23.92— — —
24.7924.7939.87—
—
—
41.3341.34-5~38 14.35 15.31 15.50 15.5014.88 14.88 23.9225.5125.8425.8424.7924.7939.8742.52 43.07 43.0741.3341.3450 14.18 15.01 15.33 15.3514.34 14.43 23.6425.0225.5525.5823.9024.0439.4041.70 42.59 42.6439.8440.07100 13.52 13.90 14.62 14.7012.25 12.65 22.5323.1624.3624.5020.4221.0937.5638.62 40.61 40.8534.0135.14150 13.18 13.56 13.90 13.9810.89 11.54 21.9622.6023.1823.3018.1619.2436.6037.66 38.61 38.8430.2632.07200 12.79 13.14 13.63 13.45 9.82 10.69 21.3221.8922.7322.4016.3717.8335.5336.50 37.88 37.3527.2829.71250 12.17 12.51 13.33 13.26 9.15 10.02 20.2820.8422.2222.1015.2616.6833.8034.75 37.03 36.8325.4327.80300 11.30 11.61 12.72 12.72 8.71 9.49 18.8419.3621.2021.2014.5215.8031.4032.26 35.33 35.3324.2026.34350 10.78 11.08 12.06 12.06 8.42 9.12 17.9618.4620.1120.1114.0215.2029.95
30.78 33.51 33.5123.3625.36375 10.94 11.63 11.63 8.32 8.91 18.2219.3819.3813.8614.8430.37 32.32 32.3223.1224.74400 10.34 10.98 10.98 8.23 8.72 17.2418.2818.2813.7214.5528.73 30.47 30.4722.8724.25425 8.62 10.53 10.53 8.14 8.59 14.3717.5417.5413.5714.3223.94 29.23 29.2322.6323.87450 6.01 10.13 10.13 8.06 8.42 10.0216.8916.8913.4214.0316.68 28.16 28.1622.3723.38475 4.06 9.50 9.50 7.97 8.20 6.7615.8215.8213.2713.6711.28 26.36 26.36
22.1322.79500 8.33 8.33 7.81 8.05 13.8913.8913.0213.40 23.15 23.1521.7122.34525 6.08 6.58 7.15 7.73 10.1210.9611.9412.89 16.88 18.2619.8821.47550 3.83 4.91 6.54 7.49 6.38 8.1710.9112.48 10.63 13.6318.1720.79575 2.55 3.51 6.02 7.22 4.24 5.8510.0412.04 7.08 9.7416.7220.07600 1.75 2.29 5.01 6.43 2.94 3.82
8.3510.71 4.90 6.3613.9217.85625 3.92 5.48 6.54 9.12 10.8915.20650 3.16 4.23 5.25 7.06 8.7511.76675 2.33 3.78
3.88 6.31
6.4510.53
图1 软阀座使用温度・压力范围
Fig. 1 SOFT SEAT OPERATING PRESSURE-TEMPERATURE RATINGS
Fig. 2 BALANCE SEAL OPERATING PRESSURE-TEMPERATURE RATINGS 图2-1 R.TFE/SUS316 图2-2 柔性石墨
Fig. 2-1 R.TFE/SUS316 Fig. 2-2 GRAFOIL
图2-3 FLUOROLOY G/ELGILOY
Fig. 2-3 FLUOROLOY G/ELGILOY
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