Ma valve ambiri aku China akutumizidwa kumayiko osiyanasiyana padziko lonse lapansi, ndipo makasitomala ambiri akunja sakumvetsa kufunika kwa nambala ya valve yaku China, lero tikukutengerani kumvetsetsa kwina, ndikuyembekeza kuti zingathandize makasitomala athu.
Ku China, mitundu ya mavavu ndi zipangizo zikuchulukirachulukira, kukonzekera kwa mavavu kumakhala kovuta kwambiri; mavavu nthawi zambiri ayenera kusonyeza mtundu wa valavu, mawonekedwe oyendetsera, mawonekedwe olumikizirana, mawonekedwe a kapangidwe kake, kupanikizika kwapadera, kutseka zinthu pamwamba, zida za thupi la valavu ndi zinthu zina. Kukhazikitsa kwa mtundu wa valavu pakupanga mavavu, kusankha, kugawa, kumapereka njira yabwino yolola ogwiritsa ntchito kuyang'ana dzina la mtundu winawake wa valavu, zipangizo ndi mawonekedwe ake.
Tsopano tiyeni titenge chitsanzo:
D341X-16Q, amatanthauza ①Valavu ya Gulugufe-②Zida zogwiritsira ntchito nyongolotsi-③Mtundu wa Flanged kawiri-④Kapangidwe Kozungulira-⑤PN16-⑥Chitsulo Chodutswa.
Gawo 1: Khodi ya mtundu wa valavu
| Mtundu | Khodi | Mtundu | Khodi |
| Valavu ya Gulugufe | D | Valavu ya Diaphragm | G |
| Valavu ya Chipata | Z | Valavu Yotetezera | A |
| Valavu Yowunikira | H | Valavu ya pulagi | X |
| Valavu ya Mpira | Q | Valavu Yotayira | FL |
| Valavu ya Globe | J | Sefani | GL |
| Valavu Yochepetsa Kupanikizika | Y |
Gawo 2: Khodi ya Actuator ya Valve
| Woyambitsa | Khodi | Woyambitsa | Khodi |
| Solenoids | 0 | Bevel | 5 |
| Magetsi-hydraulic | 1 | Pneumatic | 6 |
| Electro-hydraulic | 2 | Hydraulic | 7 |
| Zida | 3 | Pneumatic-hydraulic | 8 |
| Zida Zothandizira | 4 | Zamagetsi | 9 |
Gawo 3: Khodi yolumikizira valavu
| Kulumikizana | Khodi | Kulumikizana | Khodi |
| Ulusi Wachikazi | 1 | Wafer | 7 |
| Ulusi Wakunja | 2 | Chotsekera | 8 |
| Flange | 4 | Ferrule | 9 |
| Kulukana | 6 |
Gawo 4, Khodi Yomanga ya Mtundu wa Valavu
Fomu ya kapangidwe ka valavu ya gulugufe
| Kapangidwe ka nyumba | Khodi |
| Yogwiritsidwa ntchito | 0 |
| Mbale Yoyimirira | 1 |
| Mbale yopendekeka | 3 |
Chipata mawonekedwe a vavu kapangidwe
| Kapangidwe ka nyumba | Khodi | |||
| Tsinde Lokwera | Mphepete | Chipata Cholimba | 0 | |
| Chipata chachitsulo | Chipata Chimodzi | 1 | ||
| Chipata Chachiwiri | 2 | |||
| Kufanana | Chipata Chimodzi | 3 | ||
| Chipata Chachiwiri | 4 | |||
| Mtundu wa wedge wosakwera | Chipata Chimodzi | 5 | ||
| Chipata Chachiwiri | 6 | |||
Chongani mawonekedwe a valavu
| Kapangidwe ka nyumba | Khodi | |
| Nyamulani | Molunjika | 1 |
| Nyamulani | 2 | |
| Kugwedezeka | Mbale Imodzi | 4 |
| Mbale Zambiri | 5 | |
| Mbale Yawiri | 6 | |
Gawo 5: Khodi ya zinthu zosindikizira ma valavu
| Chitseko cha mipando kapena nsalu yophimba mipando | Khodi | Chitseko cha mipando kapena nsalu yophimba mipando | Khodi |
| Nayiloni | N | Ma Alloys Opangidwa ndi Pasteurized | B |
| Monel | P | Enamel | C |
| Mtsogoleri | Q | Chitsulo Chodulira | D |
| Chitsulo Chosapanga Dzira cha Mo2Ti | R | 18-8 Chitsulo Chosapanga Dzira | E |
| Pulasitiki | S | Fluoroelastomer | F |
| Aloyi wa Mkuwa | T | Galasi la Fiberglass | G |
| Rabala | X | Cr13 Chitsulo Chosapanga Dzira | H |
| Carbide Yopangidwa ndi Simenti | Y | Mzere wa Rabala | J |
| Kutseka thupi | W | Monel Aloyi | M |
Gawo 6, chitsanzo cha kuthamanga kwa valavu
Kupanikizika kwapadera kumafotokozedwa mwachindunji mu manambala a Chiarabu (__MPa). Mtengo wa MPa ndi wochulukitsa ka 10 kuposa chiwerengero cha makilogalamu.Pakati pa mayunitsi achisanu ndi achisanu ndi chimodzi, bala lopingasa limagwiritsidwa ntchito kulumikiza. Pambuyo pa bala lopingasa, limafotokozedwa mu mtengo wokakamiza wa gawo lachisanu ndi chimodzi. Kupanikizika kotchedwa kuthamanga kwapadera ndi kupanikizika komwe valavu imatha kupirira mwamwayi.
Gawo 7, Chopanga Zinthu za Thupi la Valve
| Zida Za Thupi | Khodi | Zida Za Thupi | khodi |
| Titanium ndi titaniyamu alloys | A | Chitsulo chosapanga dzimbiri cha Mo2Ti | R |
| Chitsulo cha Kaboni | C | Pulasitiki | S |
| Cr13 Chitsulo chosapanga dzimbiri | H | Zitsulo zamkuwa ndi zamkuwa | T |
| chitsulo cha chrome-molybdenum | I | 18-8 Chitsulo Chosapanga Dzira | P |
| Chitsulo Chofewa Chofewa | K | Chitsulo Chopangidwa | Z |
| Aluminiyamu | L | Chitsulo Chopangidwa ndi Ductile | Q |
Udindo wa kuzindikira ma valve
Kuzindikira ma valavu popanda zojambula za ma valavu, kutayika kwa dzina la valavu ndi ziwalo za ma valavu sikunathe, kugwiritsa ntchito bwino ma valavu, kulumikiza ziwalo za ma valavu, kukonza ndi kusintha ziwalo za ma valavu ndikofunikira. Tsopano chizindikiro cha ma valavu, kuzindikira zinthu ndi kuzindikira ma valavu zafotokozedwa pansipa:
Kugwiritsa ntchito "chidziwitso choyambirira cha valavu" kunaphunzira chidziwitso, malinga ndi dzina ndi logo pa valavu ndi valavu pa utoto wa utoto. Mutha kuzindikira mwachindunji gulu la valavu, mawonekedwe a kapangidwe kake, zinthu, mainchesi a mainchesi, kuthamanga kwa mainchesi (kapena kuthamanga kogwira ntchito), zolumikizira zosinthika, kutentha ndi njira yotsekera.
1.Dzina la mbale limakhazikika pa thupi la valavu kapena pa gudumu lamanja. Deta yomwe ili pa dzina la mbaleyo ndi yokwanira ndipo imasonyeza makhalidwe oyambira a valavu. Malinga ndi wopanga pa dzina la mbaleyo, kwa wopanga zithunzi ndi zambiri za valavu yovala; malinga ndi tsiku la fakitale lofotokozera za kukonza; malinga ndi dzina la mbaleyo limapereka mikhalidwe yogwiritsira ntchito, kudziwa kusintha kwa ma gasket, zipangizo ndi mawonekedwe a mbale ya valavu komanso kudziwa kusintha kwa zigawo zina za valavu ya chinthucho.
2.Kulemba chizindikiro kumagwiritsidwa ntchito poponya, kulemba zilembo ndi njira zina m'thupi la valavu polemba kuthamanga kwa valavu, kuthamanga kwa ntchito, caliber ya dzina ndi njira yoyendera yapakati.
3.Valavu pali mtundu wa malangizo otsegulira, yatsegula sikelo ya wolamulira kapena imasonyeza kutseguka ndi kutsekedwa kwa muvi. Mavavu a throttle, mavavu a chipata cha mdima amalembedwa ndi malangizo osinthira kumapeto kwa gudumu lamanja lolembedwa ndi muvi wolozera mbali ya kutseka kotseguka.