Tombontsoa amin'ny vavahadin'ny vavahady famehezana malefaka tsy misandratra
1) Ny tombo-kase ambony amin'ny valva dia voaisy tombo-kase amin'ny peratra fingotra fingotra telo "O", ary ny peratra famehezana fingotra "O" roa ambony dia azo soloina tsy mitsahatra ny rano.
2) Ny vatan'ny valva sy ny bonnet dia manaiky ny firafitry ny peratra fingotra karazana "O", izay afaka mahatsapa ny famehezana tena.
3) Rehefa misokatra tanteraka ny valva, ny lovia valva dia avo noho ny savaivony ny valva, ny fanambanin'ny vatan'ny valva dia malama tsy misy vavahady, ary kely ny tahan'ny fanoherana mikoriana, izay misoroka ny fisehoan-javatra fa ny lovia valva dia tsy voaisy tombo-kase mafy noho ny potipoti-javatra manakana ny gasket.
4) Ampifandraisina amin'ny T-slot ny voanjo tahony sy ny vavahady vavahady, izay manana tanjaka avo, ary ny hery radial friction eo amin'ny valva lovia sy ny valva vatana dia tena kely, ary ny fiainana fanompoana dia lava.
5) Ny fitsaboana amin'ny harafesina sy ny fanoherana ny harafesina dia mampiasa famafazana elektrônika tsy misy poizina epoxy resin mafana mitsonika vovoka.Ny vovoka dia manana mari-pankasitrahana WRAS sy NSF, izay manafoana ny fandotoana faharoa amin'ny kalitaon'ny rano ary mahatonga ny famatsiana rano ho madio kokoa.
BS 5163 Britanika Stardard tsy mipoitra Stem malefaka famehezana vavahady valva | ||||||||
famaritana | tsindry | refy (mm) | ||||||
DN | mirefy | PN | D | K | L | H1 | H | d |
50 | 2 | 10 | 165 | 125 | 178 | 256 | 338.5 | 22 |
16 | 165 | 125 | 178 | 256 | 338.5 | 22 | ||
25 | 165 | 125 | 178 | 256 | 338.5 | 22 | ||
40 | 165 | 125 | 178 | 256 | 338.5 | 22 | ||
65 | 2.5 | 10 | 185 | 145 | 190 | 256 | 348.5 | 22 |
16 | 185 | 145 | 190 | 256 | 348.5 | 22 | ||
25 | 185 | 145 | 190 | 256 | 348.5 | 22 | ||
40 | 185 | 145 | 190 | 256 | 348.5 | 22 | ||
80 | 3 | 10 | 200 | 160 | 203 | 273.5 | 373.5 | 22 |
16 | 200 | 160 | 203 | 273.5 | 373.5 | 22 | ||
25 | 200 | 160 | 203 | 273.5 | 373.5 | 22 | ||
40 | 200 | 160 | 203 | 273.5 | 373.5 | 22 | ||
100 | 4 | 10 | 220 | 180 | 229 | 323.5 | 433.5 | 24 |
16 | 220 | 180 | 229 | 323.5 | 433.5 | 24 | ||
25 | 235 | 190 | 229 | 323.5 | 441 | 24 | ||
40 | 235 | 190 | 229 | 323.5 | 441 | 24 | ||
125 | 5 | 10 | 250 | 210 | 254 | 376 | 501 | 28 |
16 | 250 | 210 | 254 | 376 | 501 | 28 | ||
25 | 270 | 220 | 254 | 376 | 511 | 28 | ||
40 | 270 | 220 | 254 | 376 | 511 | 28 | ||
150 | 6 | 10 | 285 | 240 | 267 | 423.5 | 566 | 28 |
16 | 285 | 240 | 267 | 423.5 | 566 | 28 | ||
25 | 300 | 250 | 267 | 423.5 | 573.5 | 28 | ||
40 | 300 | 250 | 267 | 423.5 | 573.5 | 28 | ||
200 | 8 | 10 | 340 | 295 | 292 | 530.5 | 700.5 | 32 |
16 | 340 | 295 | 292 | 530.5 | 700.5 | 32 | ||
25 | 360 | 310 | 292 | 530.5 | 710.5 | 32 | ||
40 | 375 | 320 | 292 | 530.5 | 718 | 32 | ||
250 | 10 | 10 | 400 | 350 | 330 | 645 | 845 | 38 |
16 | 400 | 355 | 330 | 645 | 845 | 38 | ||
25 | 425 | 370 | 330 | 645 | 857.5 | 36 | ||
40 | 450 | 385 | 330 | 645 | 870 | 36 | ||
300 | 12 | 10 | 455 | 400 | 356 | 725.5 | 953 | 40 |
16 | 455 | 410 | 356 | 725.5 | 953 | 40 | ||
25 | 485 | 430 | 356 | 725.5 | 968 | 40 | ||
40 | 515 | 450 | 356 | 725.5 | 983 | 40 | ||
350 | 14 | 10 | 505 | 460 | 381 | 814 | 1066.5 | 40 |
16 | 520 | 470 | 381 | 814 | 1074 | 40 | ||
400 | 16 | 10 | 565 | 515 | 406 | 935 | 1217.5 | 44 |
16 | 580 | 525 | 406 | 935 | 1225 | 44 | ||
450 | 18 | 10 | 615 | 565 | 432 | 1037 | 1344.5 | 50 |
16 | 640 | 585 | 432 | 1037 | 1357 | 50 | ||
500 | 20 | 10 | 670 | 620 | 457 | 1154 | 1489 | 50 |
16 | 715 | 650 | 457 | 1154 | 1511.5 | 50 | ||
600 | 24 | 10 | 780 | 725 | 508 | 1318 | 1708 | 50 |
16 | 840 | 770 | 508 | 1318 | 1738 | 50 |