A plastic valve for preventing distortion is disclosed. The plastic valve comprises a connection member made up of plastic, a case member formed on an outer surface of the connection member, and a flange member made up of plastic and formed at an end part of the connection member. A pipe is connected by being inserted into a hole of a central part of the connection member and a distortion prevention member for minimizing a force corresponding to distortion applied in a direction opposed to a direction of the connection is formed in the flange member. The connection member is made up of fluoride resin and the case member is made up of engineering plastic.

A quick connector structure includes a fitting connector, a connector, and a U-shaped positioning snap pin. The fitting connector is a pipe connector, a three-way valve connector, or a washing machine valve connector. The fitting connector is combined with a pipe body. The U-shaped positioning snap pin ensures the stability of the connection between the fitting connector and the connector. The quick connector structure enables rapid positioning and assembly, reducing the assembly difficulty in a smaller or concealed space and achieving the effects of assembly stability and convenience.

A fluid coupler including a ferrule adapter having a body with a receiving bore for receiving a fluid conduit, a stop axially spaced away from the body and configured to engage an end of the fluid conduit, and a connector configured to adjust the axial distance between the body and the stop.

A rodent deterrent system for a pipe system, the pipe system including a T-junction and a midsection riser. The deterrent system for the T-junction includes a first mesh screen configured to surround a vertical portion of the T-junction and a second mesh screen configured to surround a horizontal portion of the T-junction. Also, the deterrent system for a perforated riser includes a mesh wrap sleeve configured to surround the midsection of the riser. Alternatively, the riser midsection sleeve can be lengthened so that the second mesh is not needed as the lengthened sleeve also performs the same function as the second screen.

Methods, devices, and systems for a universal pipe sleeve junction for an aspirated smoke detection system are described herein. In some examples, one or more embodiments include a sleeve body having an outer surface and an inner surface, the inner surface defining an opening through the sleeve body, wherein the sleeve body further includes a first end surface and a second end surface opposite the first end surface, and a nozzle having an outer surface and an inner surface, the inner surface of the nozzle defining an opening through the nozzle and extending through to the inner surface of the sleeve body, where the nozzle opening is configured to couple with a pipe sleeve attachment mechanism.

Fluid coupling devices described herein can used in a bioprocessing facility, for example. In some cases, the fluid coupling devices can be used to couple bioprocessing equipment to a media source in a sterilized environment. The fluid coupling devices can include a two-position valve that is manually actuatable and reconfigurable between a first configuration and a second configuration.

Pipeline apparatus comprising a housing including a riser and a pipeline connector and a device configured to interact with fluid flowing through the pipeline connector, a mounting structure for releasably mounting the device in the riser and seal situated between an inner surface of the riser and an outer surface of the mounting structure, the seal configured to seal against egress of fluid from the apparatus, the mounting structure and the riser each including a part of a locking structure for releasably locking the device in the riser, the device situated in the pipeline connector.

Device and methods of protecting a branch connector of a fluid supply pipe header for a fire protection system. A protected branch connector assembly includes a protective device that protects the branch connector fitting from dirt and debris and indicates that an internal seal member is in a desired seated orientation. The protective device includes a plug body inserted within the outlet opening of the branch connector fitting and an indicator in an indicative relationship with the branch connector to indicate that the internal seal member is in the desired seated orientation.

A gas infuser includes a mixing chamber and a liquid injector. Gas is supplied into the mixing chamber and liquid flows through openings of the injector to mix with the gas in the mixing chamber and form a gas-infused liquid.

The T-head coupler is intended to perform a cleaning-in-place of a blackwater tank inside a recreational vehicle, using a mixture of water and a cleaning agent. To accomplish this, the device includes a unique arrangement of ports and distribution channels, wherein the ports on the device are designed specifically to couple with ports commonly found in RVs and water sources. In addition, a container filled with a cleaning agent is attached to the bottom port on the device. When all attachments are made, a plurality of channels within the device direct incoming water to the container. The water mixes with the cleaning agent inside the container, forming a cleaning solution. The cleaning solution flows out of the device, using the pressure from the water source. The cleaning solution then flows from the RV port and into the blackwater tank, thereby cleaning the tank.