原裝芬蘭naval球閥,naval蝶閥上海代表處
naval是芬蘭一家專門制造球閥的廠家。Naval始于1970年,于芬蘭設(shè)廠。原裝芬蘭naval球閥,naval蝶閥上海代表處-上海云謹(jǐn)機(jī)械有限公司。
Naval球閥 naval節(jié)流閥 naval平衡閥 naval執(zhí)行器 naval焊接式球閥 Balancing valves
total bi-directional tightness = EN 12266-1 rate A in both directions
high Kv-value (minimum pressure loss, minimized pumping costs)
high-strength materials capable to withstand variable water qualities
spring loaded PTFE ball seals
blow-out safe stem construction
stem sealing with double o-rings
combined balancing and shut-off functionality in one single valve
Vexve welding/welding, EN (DIN)