The UMS Flowell Standing Valve seats in the Top Nipple situated above the Y-Tool. The Standing Valve allows the tool to be landed in the nipple even with a full column of fluid below and is used to pressure test the production string from top nipple to surface.
The Standing Valve also allows the setting of a hydraulic ESP packer. The standing valve can be set in the Top Nipple on surface prior to running in hole or alternatively with slickline.
The standing valve is a ball seat check valve that allows fluid to pass from below.
After testing the tubing and bleeding off pressure on surface, the standing valve has an equalizing feature to assist with retrieval using slickline.
Features & Benefits