Ma valve ochepetsa kuthamanga kwa PBD ndi mtundu wa poppet womwe umagwiritsidwa ntchito mwachindunji kuti uchepetse kuthamanga kwa madzi mu dongosolo la hydraulic. Kapangidwe kake kakhoza kugawidwa m'magulu a poppet (Max.40Mpa) ndi mtundu wa mpira. Pali mitundu isanu ndi umodzi yosinthira kuthamanga komwe kulipo: 2.5; 5; 10; 20; 31.5; 40Mpa. Ili ndi mawonekedwe ofanana, magwiridwe antchito apamwamba, ntchito yodalirika, phokoso lochepa komanso moyo wautali wautumiki. Mitundu iyi imagwiritsidwa ntchito kwambiri pamakina ambiri otsika, ingagwiritsidwenso ntchito ngati mpumulo.
valavu ndi valavu yowongolera kutali, ndi zina zotero.
Deta yaukadaulo
| Kukula | 6 | 8 | 10 | 15 | 20 | 25 | 30 |
| Kuthamanga kwa ntchito (Mpa) | 31.5 | ||||||
| Kuchuluka kwa .flow (L/mphindi) | 35 | 60 | 80 | 150 | 200 | 250 | 300 |
| Kutentha kwamadzimadzi (℃) | -20~70 | ||||||
| Kulondola kwa kusefera (µm) | 25 | ||||||
| Kulemera kwa PBD K(KGS) | 0.4 | 0.5 | 0.9 | 2.1 | |||
| Kulemera kwa PBD G(KGS) | 1.6 | 3.6 | 3.6 | 6.9 | 6.9 | 15.2 | 15.2 |
| Kulemera kwa PBD (KGS) | 1.7 | 3.7 | 7.1 | 15.7 | |||
| Vavu thupi (Zinthu) mankhwala pamwamba | Chitsulo cha Thupi la Okisidi Wakuda | ||||||
| Ukhondo wa mafuta | NAS1638 kalasi 9 ndi ISO4406 kalasi 20/18/15 | ||||||
Ma curve odziwika bwino (omwe amayesedwa ndi HLP46, Voil = 40℃ ± 5℃)
Miyeso ya PBD*K ya katiriji
Miyeso yoyika
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