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Apparatus and method for replacing existing actuator zone valves in an HVAC system with a ball valve

A valve device and actuator technology, which is applied to valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of expensive and large actuators

Inactive Publication Date: 2006-08-16
TAC LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combination of these factors would require a spring-recovery actuator capable of driving a ball valve through a full 90 degrees of rotation that is significantly larger than existing actuators used to drive rubber ball-type automatic valves through 45 degrees or less of rotation. , heavier and more expensive

Method used

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  • Apparatus and method for replacing existing actuator zone valves in an HVAC system with a ball valve
  • Apparatus and method for replacing existing actuator zone valves in an HVAC system with a ball valve
  • Apparatus and method for replacing existing actuator zone valves in an HVAC system with a ball valve

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Embodiment Construction

[0032] figure 2 A first exemplary embodiment of the invention is shown in the form of a valve arrangement 10 comprising a ball valve 12 and an actuator 14 operably connected to the ball valve 12 in a manner described in more detail below. The ball valve 12 includes a valve housing 16 , a valve member 18 and a ramp bearing 20 . The valve housing 16 includes a first portion 22 and a second portion 24 joined by a threaded connection 26 to define a flow path 28 extending through the housing 16 and a ball receiving chamber 30 within the flow path 28 .

[0033] Valve member 18 of the exemplary embodiment is mounted between ramp bearing 20 and integral port inlet bearing 32 within ball housing 30 for optional rotation about axis of rotation 34 . The valve member of the exemplary embodiment is a generally spherical ball having a substantially spherical outer surface 36 . A through hole 38 extends through the valve member 18 to rotate the valve member 18 as figure 2 In the positio...

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Abstract

An apparatus and method are provided for replacing existing actuator driven zone valves in an HVAC system, and particularly valves of the rubber paddle type having actuators providing less than 90 degrees of rotation, with a ball valve including a skewed seat bearing that blocks flow through the flowpath when a valve member of the ball valve is rotated through an angle of substantially less than 90 degrees from a fully open position of the valve at which a bore in the valve member is substantially fully aligned with the flowpath. The actuator from the existing zone valve being replaced may be used with the provided ball valve apparatus and method.

Description

technical field [0001] The present invention relates to ball valves, and more particularly to apparatus and methods for replacing existing actuator-driven zone valves in HVAC systems with ball valves, particularly rubber paddle types having actuators that provide less than 90 degrees of rotation. type) valves which, according to the invention, in such a way that replaced actuators from existing zone valves can be used with ball valves. Background technique [0002] A hydronic heating ventilation and air conditioning (HVAC) system for a building typically includes a fluid circuit for delivering heated or cooled water or other fluids to spaces occupied in the building. The fluid circuit is typically divided into zones that can be connected to or disconnected from heating or cooling fluid sources by zone valves. Such zone valves typically include a motor-driven actuator that allows the zone valve to be opened or closed from a central position. [0003] Rubber ball type automa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06
CPCF16K5/12F16K5/0605
Inventor 吴兴善
Owner TAC LLC
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