EP 0022251 B1 19830427 - VALVE WITH A BODY CONNECTIBLE TO TUBES FOR CONVEYING PRESSURIZED DENSE FLUIDS, FOR INSTANCE CONCRETE, FOR INTRODUCING A CLEANING PIG
Title (en)
VALVE WITH A BODY CONNECTIBLE TO TUBES FOR CONVEYING PRESSURIZED DENSE FLUIDS, FOR INSTANCE CONCRETE, FOR INTRODUCING A CLEANING PIG
Publication
Application
Priority
- DE 2927324 A 19790706
- DE 2943967 A 19791031
Abstract (en)
[origin: US4373225A] A piping valve for conduits conveying pressurized viscous material, such as concrete, provides a means for introducing a wiper into the conduit for cleaning purposes. The piping valve has a reciprocally displaceable part with a transmission pipe and a pipe chamber containing the wiper. The reciprocally displaceable part may be moved between a first position in which it is aligned with the conduit and a second position in which it receives the wiper for passage through the conduit.
IPC 1-7
IPC 8 full level
B08B 9/04 (2006.01)
CPC (source: EP US)
B08B 9/0552 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE FR GB IT NL SE
DOCDB simple family (publication)
EP 0022251 A1 19810114; EP 0022251 B1 19830427; BR 8004187 A 19810203; US 4373225 A 19830215
DOCDB simple family (application)
EP 80103787 A 19800703; BR 8004187 A 19800704; US 16514080 A 19800701