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Cast Iron Flanged Suction Check Valve CB/T3478-92

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China Cast Iron Flanged Suction Check Valve CB/T3478-92:

Cast Iron Flange Suction Check Valve CB/T3478 is used on the pipe system with the medium oil, sea water & fresh water. It is normally installed on the lowest parts of water suction pump pipe line to prevent the back flow of medium.

Technical Specification:

Design Standard:CB/3478-92

Test Standard: GB600

Nominal Pressure: 1.0Mpa

Flange size as per GB569 or GB2501

Type Nominal diameter(mm) Applicable Medium
R,RS,Y,YS 32~250 oil, sea water & fresh water

R---Flange size as per GB569, with rubber sealing

RS---Flange size as per GB2501, with rubber sealing

Y---Flange size as per GB569, with metallic sealing

YS---Flange size as per GB2501, with metallic sealing

Main Parts & Material:

Body-Cast Iron

Cover-Cast Iron

Y/YS Disc-Brass

R/RS Stem-Brass

R/RS Seal Ring-NBR

Main Size List(mm):

For Cast Iron Type R:

nominal
diameter 		structure dimension Thickness
δ 		flange bolt Lift Range m Weight
(kg)
H h D3 D D1 D2 d0 b Th. n
32 150 15 85 7 115 83 64 15 13 M14 6 9 2.08
40 170 17 95 8 125 93 74 15 13 M14 6 12 2.90
50 194 21 120 8 135 103 84 15 13 M14 6 15 3.98
65 210 26 150 9 155 123 104 15 13 M14 6 19 5.25
80 230 30 180 9 170 138 118 15 14 M14 8 23 7.91
100 269 39 230 10 190 158 138 15 15 M14 8 28 13.90
125 290 47 280 10 215 183 164 15 15 M14 10 35 18.80
150 335 57 335 11 240 208 190 15 15 M14 12 42 25.90
200 395 73 440 11 295 264 247 15 15 M14 12 58 46.10
250 508 91 545 13 365 327 306 17 18 M16 14 72 67.70

For Cast Iron Type RS:

nominal
diameter 		structure dimension Thickness
δ 		flange bolt Lift Range m Weight
(kg)
H h D3 D D1 D2 d0 b Th. n
32 150 15 85 7 120 90 70 14 16 M12 4 9 2.38
40 170 17 95 8 130 100 80 14 16 M12 4 12 3.15
50 194 21 120 8 140 110 90 14 16 M12 4 15 4.26
65 210 26 150 9 160 130 110 14 16 M12 4 19 5.49
80 230 30 180 9 190 150 128 18 18 M16 4 23 8.44
100 269 39 230 10 210 170 148 18 18 M16 4 28 15.71
125 290 47 280 10 240 200 178 18 20 M16 8 35 20.25
150 335 57 335 11 265 225 202 18 20 M16 8 42 27.70
200 395 73 440 11 320 280 258 18 22 M16 8 58 49.20
250 508 91 545 13 375 335 312 18 24 M16 12 72 71.20
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