An elastomeric non return valve (11) may be incorporated.
The non-return valve (40) comprises a ducks beak check valve.
single air drier non-return valve outlet
The invention relates to a piloted, blockable non-return valve and a hydraulic drive of a moulding unit, in which a non-return valve of this type is used.
The invention relates to a method for production of a non-return valve, in particular for use in an injection-moulding machine, and also to this non-return valve.
The opening directions of the two non-return valves produce a displacing direction of the high pressure pump according to the invention from the feed to the outlet or from the first non-return valve to the second non-return valve.
The mechanism includes a duckbill check valve that has its bills pointed in the upstream direction.
The left ventricle valve (10) includes a unidirectional check valve (42) having duckbill valve portion (44) and a flange portion (46) to movably cover vacuum vent openings (28).
The check valve composed of a check ball supported by a check valve spring installed in a check valve cover is installed on a check valve sheet installed at the lower end of the piston.
The check valve is adapted to sealingly engage the check valve seat.
When they are first placed in a fluid conduit and exposed to line pressure the web will break open so as to thereby create a duckbilled type check valve (20).
The inlet port is fluidly connected to a first check valve and the discharge port is fluidly connected to a second check valve.
The stop pin assembly is configured such that it can be inserted and locked in place when the check valve is inserted within a valve body that contains the check valve.
The check valve (23) comprises a springloaded device (26), which comprises means (36) for retaining the device centrally in the check valve.
However, once used it functions as a check valve.
When the conical plug is depressed, the conical plug engages the sides of the aperture and seals the check valve, preventing solvent and sample from backing through the check valve.
In certain embodiments, the nozzle comprises a one-way valve, such as a duckbill valve.
The duckbill one-way valve (13) is mounted in the inside of the side branch of the indwelling tube seat (4).
The duckbill valve assembly includes at least two duckbill valve members (12,14) and a flexible, flat flange member (16) which joins the two duckbill valve members (12,16) together.
The flexible check valve (300) can be a duckbill/crossbill valve comprising multiple flexible members (306) that restrict the flow of fluid in a tubular member.
The duckbill one-way valve (13) can also be mounted in the inside of the side branch of the Y-shaped three-way hose seat (11).
The one-way valve (28) in the adapter is opened before the one-way valve (8) in the storage bottle (6).
The one-way valve may be a diaphragm valve.
The liquid inlet valve (104) is elastically biased in a closed position, and is a duckbill valve.
The combination dual valve element includes a ADB sealing lip forming an anti-drain back valve portion, and a RV sealing lip forming a relief valve portion.
In one embodiment, the check valve can be inserted into the spout during fabrication of the nozzle.
Preferably, the flexible check valve is crossbill valve (400) that is attached using adapter (900).
The passage includes a check valve seat (134).
The check valve opens the spouting outlet.
The check valve receptacle has a spring-biased, normally closed check valve that prevents fuel from escaping from the fuel tank.
A check valve (25) is installed between the nozzle (11) and the return line (13), the inlet of said check valve being connected to the inlet of the nozzle (11).
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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