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Discharge Vacuum Relief Valves for Safety Vacuum Release Systems

A technology of vacuum release valve and release system, which is applied in the direction of valves for ventilation, safety valves, components of pumping devices for elastic fluids, etc., and can solve problems such as ineffectiveness of SVRS devices

Inactive Publication Date: 2016-12-21
PENTAIR WATER POOL & SPA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some swimming pools, the presence of check valves can render SVRS units ineffective

Method used

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  • Discharge Vacuum Relief Valves for Safety Vacuum Release Systems
  • Discharge Vacuum Relief Valves for Safety Vacuum Release Systems
  • Discharge Vacuum Relief Valves for Safety Vacuum Release Systems

Examples

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Embodiment Construction

[0016] Before any embodiments of the invention are set forth in detail, it is to be understood that the invention is not limited in application to the details of the arrangement and construction of components described in the following specification or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of "comprises," "including," or "having" and variations thereof herein is intended to encompass the items listed thereafter and equivalents thereof, as well as additional items. Unless otherwise stated or limited, the terms "mount", "connect", "support" and "couple" and variations thereof are used broadly to encompass both directly and indirectly mount, connect, support and couple. Further, "connected" and "coupled" are not limited ...

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Abstract

Embodiments of the present invention provide a pumping system and discharge vacuum relief valve for use in a hydronic system that includes a safety vacuum relief system pump that circulates water in a swimming pool and / or spa. The hydraulic system includes one or more check valves located on the discharge side of the safety vacuum relief system pump. The discharge vacuum relief valve is capable of venting the vacuum on the discharge side of the safety vacuum relief system pump during a vacuum event on the suction side of the safety vacuum relief system pump.

Description

[0001] related application [0002] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 61 / 421,069, filed December 8, 2010, which is hereby incorporated by reference in its entirety. Background technique [0003] In swimming pools and spas (SPAs), safety vacuum relief systems (SVRS) have been developed to remove suction in circulation system lines between the pump and a blocked outlet. When a blockage is detected in the pool drain and the suction side of the pump, the SVRS unit shuts down the pump to relieve suction and prevent objects from sinking. If a check valve is installed on the discharge side of the circulation system, for example to prevent backflow of water, it can also hinder or slow down the release of the suction force. As a result, vacuum forces, such as those that suck swimmers into the pool drain, can be maintained for a longer period of time than current standards allow. In some swimming pools, the presence of che...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06
CPCY10T137/0396Y10T137/7897E04H4/1645Y10T137/2569Y10T137/86027E04H4/1245C02F2301/063F04D15/0218F04D15/0077F04D15/0083F16K15/063F04B53/06F04B53/10F16K17/04F16K24/04
Inventor R·B·罗伯D·J·赫鲁比J·S·科尔文
Owner PENTAIR WATER POOL & SPA INC