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SeriesCodeDescription
835835SHDWNJAMESBURY 835/83P SERIES SOFT SEATED HIGH PERFORMANCE BUTTERFLY VALVE

Series 835 Wafer-Sphere™ high performance butterfly valves provide excellent control performance and bi-directional bubble tight shut-off to 100 psi (7 bar). The flexible seat design provides low pressure sealing and long seat life. The double offset disc ensures extended cycle life and low maintenance costs. An optional low torque seat allows smaller actuators to be selected. Fire-Tite™ valve construction is also available. Wafer and single flange lugged bodies mount between ANSI 150 and DIN PN 10, 16 and 25 flanges.

Cv-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
7503001309283547557241104251465720327279613681644000
90036023525096854613015187392634436537502586617478000
10504203069665111152169842445434378476796558586355102000
120048041148913149462276232772460726389887894115729137000
13505405432117681973430054432716083384369116053152806181000
150060065701423523871363545234173584102054140379184836219000

Cv/d2-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
7503000.1180.1370.1670.2020.2410.2820.3220.3550.3770.396
9003600.1180.1370.1670.2020.2410.2820.3220.3550.3770.396
10504200.1180.1370.1670.2020.2410.2820.3220.3550.3770.396
12004800.1180.1370.1670.2020.2410.2820.3220.3550.3770.396
13505400.1180.1370.1670.2020.2410.2820.3220.3550.3770.396
15006000.1180.1370.1670.2020.2410.2820.3220.3550.3770.396

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
7503000.860.850.830.80.770.720.670.580.480.41
9003600.860.840.810.780.740.690.610.510.390.31
10504200.860.840.820.790.740.690.620.520.410.33
12004800.860.840.810.780.740.690.620.510.40.31
13505400.860.840.810.780.730.680.60.50.380.29
15006000.860.840.810.780.740.690.610.50.390.3

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
7503000.530.530.530.520.480.420.360.280.20.14
9003600.530.530.530.50.440.380.310.210.120.09
10504200.530.530.530.510.450.390.320.230.140.1
12004800.530.530.530.50.440.380.310.220.130.09
13505400.530.530.530.50.430.370.30.210.120.08
15006000.530.530.530.50.440.380.310.210.120.09

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
7503000.370.350.320.280.260.230.20.180.150.14
9003600.370.340.290.260.240.210.180.150.130.12
10504200.370.340.30.270.250.220.190.160.140.13
12004800.370.340.30.260.240.220.190.160.130.12
13505400.370.340.290.260.240.210.180.150.130.12
15006000.370.340.290.260.240.210.180.150.130.12

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File creation day: 22.4.2024 (day.month.year)