摘要:
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).
摘要:
A kit for connecting a toilet pan waste outlet to a waste pipe is described. The kit comprises a connector, the connector including a sleeve portion adapted for connection to the outlet, wherein the sleeve portion is configured to form an axially extending contact surface with the outlet and a fastener, wherein the fastener is configured to apply a retaining force to the sleeve tending to retain the sleeve on the outlet.
摘要:
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.
摘要:
A waste outlet fitting 10 for use in a basin or bath is described. The fitting includes a brass housing 12 for sealingly mounting the fitting 10 within a waste outlet, the housing defining a throughbore. A brass plug 14 is captively received within the housing 12 and a brass actuator 16 is attached to the plug 14, for use in moving the plug 14 from the closed configuration to an open configuration. The outer surface 18 of the housing 12 includes a threaded portion 20 on which are mounted attachment elements 22 for securing the waste outlet fitting 10 to the basin or bath.
摘要:
A mechanically-actuable combined seal and strainer plug ( 10 ) is provided. The plug ( 10 ) includes a length-adjustable stem ( 20 a), ( 20 b), which carries a seal ( 28 ) and a strainer ( 30 ). In use the strainer ( 30 ) is located above the seal ( 28 ), to permit easy access and cleaning. The stem ( 20 a), ( 20 b) is received in a waste outlet. The length of the stem may be adjusted by exertion of force on a knob ( 32 ) on the upper surface of the strainer ( 30 ); as the stem changes in length, the seal ( 28 ) engages and disengages with a surface of a waste outlet. When the seal ( 28 ) is disengaged, waste water can flow through the outlet passing first through the strainer ( 30 ) to remove solid particles.
摘要:
A relief valve for sanitation systems, said relief valve incorporating a valve seat 11, 25, within a valve chamber 5, 22, and a freely flexible valve element 12, provided for engagement with the valve seat 11, 25 to prevent inflow of air to the valve chamber 5, 22 through an air inlet 10, 26. Guide means 16, 17 are provided for assisting the valve element 12 into sealing engagement with the valve seat 11.