Abstract: A removable cartridge for a low or zero water urinal outlet comprises a body comprising a side wall including one or more locking projections projecting out from the wall. One or more resilient elements are provided in the wall and each resilient element includes one of the locking projections.

Abstract: The present invention provides an in-line valve particularly suitable for draining facilities to avoid odour penetrating habitable spaces or backflush of drainage liquids. The in-line valve comprises a body, preferably made of two engageable parts, an inset and a duckbill valve. The insert is located within the valve body and surrounding the duckbill valve. The insert funnels liquid from the valve inlet to the valve outlet, so that puddling in the valve body is avoided and therefore no water is accumulated, which could lead to odours or microorganisms proliferation.

Abstract: The present invention provides a one-way drain valve comprising a fitting and a duckbill valve, wherein the fitting comprises one or more formations that prevent inward folding of the duckbill membrane upon reverse flow conditions without constituting an obstruction to the normal drain flow where entrained solids could forth a plug and thus, prevent adequate drainage. The formations extend parallel to or ergent from a fitting longitudinal axis. The fitting may comprise a recess or other suitable feature adapted to facilitate engagement with the duckbill valve.

Abstract: Draining mechanism for a sanitary vessel, such as a bathtub or the like, and method for installing such a draining mechanism on a sanitary vessel in which the draining mechanism is adapted to be installed in sanitary vessels of different wall thicknesses and comprising an actuator which does not need to be bulky or aesthetically unpleasant when the sanitary vessel wall thickness is small. The invention also facilitates the movement of the actuator even when the actuator becomes wet.

Abstract: A non-return device (10) for use with a waste trap is described. The non-return device comprises a sealing portion (12) having first and second sheet members (14, 16), a device inlet (18), a device outlet (20) and a transition portion (22) providing fluid communication between the device inlet and the sealing portion. The transition portion has a convex section of wall (24).

Abstract: The present invention provides an apparatus for speeding the draining of a bathing vessel, and is particularly suitable for speeding the draining of walk-in bath tubs. The apparatus can be concealed in a corner of the walk-in bathtub and comprises an actuation mechanism to open and close the draining outlet which needs minimal force to be actuated, making it especially suitable for use by elderly people. The apparatus can also incorporate a security by-pass drain to avoid overfilling of the bathtub. The apparatus can be installed in most or all standard bathrooms with few adaptations.

Abstract: A trap for a waste outlet for use in drainage facilities is described which provides a water seal. The trap comprises a one-way valve (23) at the trap inlet (14) and a pressure one-way valve (24) at the trap outlet (16) such that, in addition to prevent ingress of animals from the soil pipe to the buildings, prevents ingress of odours and the water seal being presence of a negative pressure differential across the outlet one-way pressure valve that air can pass through the pressure valve (24) to relieve the pressure differential but in the event of a positive pressure differential, air is prevented from passing through the oneway pressure valve (24).

Abstract: A drainage fitting (10) is described. The drainage fitting (10) comprises a housing (12) adapted to be inserted into a drainage outlet, the housing defining a housing inlet (14) and a housing outlet (16) and a one way valve (18) adapted to be received within the housing (12). The one way valve (18) has a body defining a valve inlet (22), a valve outlet (24) and a valve passageway (26), the passageway (26) providing fluid communication between the housing inlet (14) and the housing outlet (16). The drainage fitting (10) further comprises a fitting insert (28) adapted to be located in the housing inlet (14), the fitting insert (28) defining an insert portion (30) adapted to extend through the valve inlet (22) and into the valve passageway (26).

Abstract: An overflow device for use with sinks and the like is described. The overflow device comprises a body adapted to be positioned adjacent the exterior of a sink bowl, the body having an inlet and an outlet joined by an inverted-U siphon passage, and a vent adapted to communicate ambient air to the top of the siphon passage, the vent being arranged to close when water level in the sink reaches a predetermined level. In at least one embodiment the vent has no moving parts.

Abstract: Plumbing apparatus (10) for incorporation in a waste pipe system comprises a tubular body having an inlet (14) for connection to an upstream waste pipe and an outlet (16) for connection to a downstream waste pipe. A one-way water valve (22) is provided in the body and is arranged to permit flow from the inlet to the outlet and to prevent flow from the outlet to the inlet. An air valve (24) is mounted on an upper portion of the body and is arranged to permit flow of air into the body and to restrict flow of air out of the body. In the event of negative pressure in the downstream waste pipe system the air valve opens to allow air to be drawn into the system. In the event of positive pressure in the downstream waste pipe system the one-way water valve closes.

Abstract: A fitting (10) for a sanitary unit outlet (5) has a tubular housing (12) having an inlet (14) and an outlet (16), a grid (18) associated with the housing inlet (14) and a one-way valve (20) associated with the housing outlet (16). The housing (12), grid (18) and one-way valve (20) are configured so as to be removable from the sanitary unit outlet (5) as a single entity to permit, for example, the one-way valve (20) to be replaced.

Abstract: A non-return device (10) for use with a waste trap is described. The non-return device comprises a sealing portion (12) having first and second sheet members (14, 16), a device inlet (18), a device outlet (20) and a transition portion (22) providing fluid communication between the device inlet and the sealing portion. The transition portion has a convex section of wall (24).

Abstract: A plumbing sealing arrangement (10) comprises a passageway having an inlet (14) adapted to be connected to a waste outlet (16) and an outlet adapted to be connected to a soil stack, a one way valve (18) located between the passageway inlet and outlet, the one way valve adapted to permit the passage of fluid through the passageway in one direction only from the inlet to the outlet and a trap (20) arranged to permit a liquid seal to be formed between the passageway inlet and the passageway outlet. In normal use, at least a portion of the one way valve is immersed in the liquid seal and in a described embodiment, an outlet of the valve is immersed in the liquid seal.

Abstract: An apparatus for a urinal is described. The apparatus comprises a plate member adapted to form a seal with a urinal outlet, the plate member defining a throughbore permitting the passage of liquid, in use, from the urinal to a soil pipe and a diaphragm located in the plate member throughbore, the diaphragm adapted to permit the passage of liquid through the throughbore in one direction only from the urinal to the soil pipe.

Abstract: An anchoring device (10) comprises a resilient sleeve (16) for receiving an elongate member, such as a bolt (18), and first and second stoppers (20,21) for location on the bolt at respective ends of the sleeve. Movement of the stoppers (20,21) towards one another causes the sleeve (16) to expand radially. The inner first stopper (20) may engage one of the bolt head (22) and nut (24) to resist relative rotation thereof. Alternatively, the inner first stopper may be threaded.