Valve with stop mechanism

摘要

In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.

主权项

1. A valve, comprising:
a. first and second valve seat carriers; b. a first valve seat associated with the first valve seat carrier and a second valve seat associated with the second valve seat carrier; c. a valve ball between the valve seats; d. a stop mechanism operating between each of (i) the first valve seat carrier and the first valve seat and (ii) the second valve seat carrier and the second valve seat, the stop mechanism comprising a groove formed in the valve seat carriers and a tongue and lip formed on the valve seats, wherein the lip engages and is retained in the groove, whereby the stop mechanism limits the travel of the valve seats towards the valve ball such that the valve ball is allowed to move out of sealing engagement with the valve seats; and e. a biasing mechanism biasing each valve seat toward the valve ball.