The non-return valve has a coaxial unit (9, 10) in the outlet channel (7) at the lower section (3), with a concave curved mushroom-head surface towards the membrane. Its centre zone is in contact with the valve membrane (4).
申请公布号
DE4309262(A1)
申请公布日期
1994.06.30
申请号
DE19934309262
申请日期
1993.03.23
申请人
J. SOELLNER GMBH, MEDIZINISCHE EINMALARTIKEL, 94469 DEGGENDORF
