NZ786341A - A float valve with a transient mitigation function - Google Patents

A float valve with a transient mitigation function Download PDF

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Publication number
NZ786341A
NZ786341A NZ786341A NZ78634122A NZ786341A NZ 786341 A NZ786341 A NZ 786341A NZ 786341 A NZ786341 A NZ 786341A NZ 78634122 A NZ78634122 A NZ 78634122A NZ 786341 A NZ786341 A NZ 786341A
Authority
NZ
New Zealand
Prior art keywords
float valve
hinged lever
biasing means
outlet
sealing member
Prior art date
Application number
NZ786341A
Inventor
Valkenburg Mark
Watson Stuart
Prabhu Raghunath
Original Assignee
Philmac Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philmac Pty Ltd filed Critical Philmac Pty Ltd
Priority to NZ786341A priority Critical patent/NZ786341A/en
Publication of NZ786341A publication Critical patent/NZ786341A/en

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  • Float Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

A diaphragm float valve with transient mitigator for use in a water tank. The float valve comprises at least one inlet (23) and outlet (21), and a sealing member (41) that controls water flow between the inlet and outlet; a hinged lever (50) with a buoyant device (60) located at the end of the hinged lever; and a biasing means (51) to control the movement of the hinged lever. The biasing means provides a delay in the movement of the hinged lever in order to prevent repeated oscillations, in response to changes in water level of the tank. The delayed movement of the hinged lever prevents immediate opening and closing of the valve. Constant changes in water flow introduce transients into the pipe network, leading to accelerated pipe wear. The proposed invention provides a float valve that can mitigate transients with a biasing mechanism.

Claims (11)

1. A float valve for use in a water tank comprising of: a. at least one inlet and outlet that allows water to communicate through the float valve; b. a sealing member that controls the water flow between the inlet and outlet; c. a hinged lever connected to the float valve and a buoyant device that is located in the water tank; and d. a biasing means to control the movement of the hinged lever.
2. The float valve as in claim 1, wherein the biasing means is a spring.
3. The float valve as in claim 1, wherein the biasing means is a gas strut.
4. The float valve as in claim 1, wherein the biasing means is a cam.
5. The float valve as in claim 1 wherein the hinged lever comprises a cover.
6. The float valve as in claim 1 wherein the outlet comprises of vanes in an outlet orifice.
7. The float valve as in claim 1, further comprising a sealing member.
8. The float valve as in claim 7 wherein the sealing member comprises of a hole.
9. The float valve as in claim 7, wherein the sealing member is made of a flexible material.
10. The float valve as in claim 7, wherein the hole can allow fluid to travel through the float valve to assist in cleaning internal components of the valve.
11. The float valve as in claim 1, wherein the sealing member operates in response to a pressure differential.
NZ786341A 2022-03-18 2022-03-18 A float valve with a transient mitigation function NZ786341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ786341A NZ786341A (en) 2022-03-18 2022-03-18 A float valve with a transient mitigation function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ786341A NZ786341A (en) 2022-03-18 2022-03-18 A float valve with a transient mitigation function

Publications (1)

Publication Number Publication Date
NZ786341A true NZ786341A (en) 2024-02-23

Family

ID=90670424

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ786341A NZ786341A (en) 2022-03-18 2022-03-18 A float valve with a transient mitigation function

Country Status (1)

Country Link
NZ (1) NZ786341A (en)

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Legal Events

Date Code Title Description
ERR Error or correction

Free format text: THE TITLE HAS BEEN CORRECTED TO TITLE: A MECHANISM FOR PREVENTING OSCILLATION OF A FLOATATION DEVICE USED WITH A VALVE; FILING DATE: 18 MAR 2022; STATUS: REJECTED; KIND CODE: A1 PUBLICATION DATE: 29 SEP 2023; TITLE: A FLOAT VALVE WITH A TRANSIENT MITIGATION FUNCTION; FILING DATE: 10 JAN 2024; STATUS: PROPOSED; KIND CODE:

Effective date: 20240123