OLEOWEB閥VBCF系列參數(shù)特性
Technical data | |
Mineral oil | ISO 6743/4 |
Oil viscosity | 15-250 mm2/s |
Max contamination index with filte | ISO 4406:1999 Classe 19/17/14 |
Oil temperature | -4°F +176°F |
Ambient temperature | -4°C +122°F |
It is necessary a filter use to protect the valve (advised filtration 15 μm) | |
OLEOWEB閥VBCF系列描述說明及選型
Oleoweb VBCF平衡閥設計用于在可預見執(zhí)行器（例如氣缸或液壓馬達）上的重力的工作條件下獲得最佳的負載控制。VBCF偏心閥是雙作用的，即，它們在兩個輸送方向上都控制負載。它們是易折的閥門，因此可以直接應用在執(zhí)行器上，從而減少滯后現(xiàn)象。承受重力載荷是平衡閥的基本任務之一。為了確保在負載保持方面的最佳性能，Oleoweb特別注意其液壓密封平衡閥，用高強度鋼制成零件，經(jīng)過硬化和磨削，并在組裝后仔細檢查閥的尺寸和公差以及密封性。偏心閥的另一個主要任務是控制執(zhí)行器的運動。由于先導比，可以在低于閥設定壓力的壓力下釋放負載。對于Oleoweb平衡閥，可以提供不同的先導報告。對比彈簧還允許流體通道區(qū)域逐漸打開，從而即使在存在負載荷的情況下也可以控制執(zhí)行器的運動，從而避免了氣蝕的發(fā)生。為了獲得最佳操作，建議設置平衡閥值比最大工作負荷高30％。使用塑料蓋也可以密封設置，以防篡改。VBCF 平衡閥還可以執(zhí)行防震閥的功能，保護連接到執(zhí)行器的結構不受突然的壓力峰值（例如，過高的負載或意外沖擊）造成的損壞。為此，必須將分配器上的回流管連接到排水管。VBCF是一種無補償平衡閥：回油管路上的任何殘余壓力都會通過提高打開閥門所需的設定壓力和先導壓力來抵消閥門的打開。因此，這種類型的閥更適合安裝在帶有開放式中心閥芯的分配器的下游，并用于在中性位置排放。Oleoweb VBCF 平衡閥是閥體中的零件：這些零件容納在液壓歧管中。該解決方案使您能夠在保持整體尺寸不變的情況下管理高流量。閥體和外部部件均由高強度鋼制成，并通過鍍鋅保護其免受腐蝕。六個表面上的車身加工確保了表面處理的最佳執(zhí)行，并具有其有效性的優(yōu)勢。對于暴露于特別腐蝕性的腐蝕劑的應用（例如海洋應用），可應要求提供鋅鎳處理。鋼制閥體允許在最高350 bar（5075 PSI）的工作壓力下工作，并確保高耐磨性，從而提高了閥的可靠性和耐用性。VBCF閥的尺寸從BSPP 1/4“到BSPP 1/2”不等，流量高達60 lpm（15,9gpm）。
The Oleoweb VBCF counterbalance valves are designed to obtain the best control of the loads in working conditions that foresee gravitational forces on the actuators, such as cylinders or hydraulic motors. The VBCF overcenter valves are double-acting, ie they control the load in both delivery directions; they are flangable valves, which can therefore be applied directly on the actuator with consequent reduction of the hysteresis phenomenon. Sustaining a gravitational load is one of the fundamental tasks of counterbalance valves. To ensure the best performance in terms of load holding, Oleoweb takes particular care of the hydraulic seal of its counterbalance valves, making the components in high-strength steel, hardened and grinded and carefully checking dimensions and tolerances as well as the sealing of the valves once assembled. Another main task of the overcenter valves is the control of the actuator movement. Thanks to the piloting ratio, it is possible to release the load at a pressure lower than the valve setting pressure. For the Oleoweb counterbalance valves, different piloting reports are available. The contrast spring also allows a gradual opening of the fluid passage area allowing the control of the actuator movement even in the presence of negative loads and thus avoiding the onset of cavitation. For optimal operation it is advisable to set the counterbalance valve at a value 30% higher than the maximum work load. Using a plastic cap it is also possible to seal the setting, protecting it from tampering. The VBCF counterbalance valves can also perform the function of shock-proof valves, protecting the structure connected to the actuator from damage caused by sudden pressure peaks due, for example, to excessively high loads or accidental impacts. For this to be possible, the return line on the distributor must be connected to the drain. The VBCF is a non-compensated counterbalance valve: any residual pressure on the return lines counter the opening of the valve by raising the setting and pilot pressure necessary to open it. For this reason this type of valve is better suited to be installed downstream of distributors with open center spool, with uses connected to discharge in neutral position. Oleoweb VBCF counterbalance valves are parts in body valves: the components are housed inside a hydraulic manifold. This solution allows you to manage high flow rates while keeping down the overall dimensions. The valve body and external components are made of high-strength steel and are protected against corrosion by galvanizing. The processing of the body on the six faces guarantees an optimal execution of the surface treatment to the advantage of its effectiveness. For applications exposed to particularly aggressive corrosive agents (eg marine applications) the zinc-nickel treatment is available on request. The steel body allows working with operating pressures up to 350 bar (5075 PSI) and ensures a high resistance to wear to the benefit of valve reliability and durability. VBCF valves are available in sizes from BSPP 1/4 "to BSPP 1/2" for flow rates up to 60 lpm (15,9 gpm).
OLEOWEB閥VBCF系列選型介紹
OLEOWEB閥VBCF系列尺寸圖
OLEOWEB閥VBCF系列其他常見型號：
OLEOWEB VBCF140
OLEOWEB VBCF380
OLEOWEB VBCF120
OLEOWEB VBCF1202S
OLEOWEB VBCF3802S
OLEOWEB valve NEW + ORIGINAL+ ONE YEAR WARRANTY
愛澤工業(yè)成立于2010年，定位于向先進制造工業(yè)提供高端制造技術和設備。代理經(jīng)營世界先進的電氣自動化、機械與傳動、流體控制、儀器儀表、工具等產(chǎn)品。作為電氣，液壓以及氣動解決方案的合作伙伴，我們利用我們的全球協(xié)作團隊，為客戶提供先進解決方案，市場知識以及相關增值服務來幫助優(yōu)化客戶的工作效率，提高可靠性和安全性，致力于成為工業(yè)產(chǎn)品和解決方案的優(yōu)質(zhì)渠道。
如果有任何關于OLEOWEB閥VBCF1202S的疑問，請隨時與我們電聯(lián)，（021-3100 6702），我們將盡全力解決您的問題。
If you have any question for OLEOWEB products, please feel free to dial 0086-21-3100 6702/ send request email to sales@ize-industries.com / browse our website: jjxdch.cn.
OLEOWEB閥VBCF系列 VBCF1202S描述說明
