The Parveen Model 'FB-2' and 'RB-2' Equalizing Check Valves are complete equipment units, without any locking device. They are utilized in the following Tubing Mounted Equipment:
'FB-2'
run in all Model 'F' Nipples and all Model 'L' Sliding Sleeves.

'RB-2'
run in Bottom No-Go 'R' Nipples.

Both models are run into a Nipple Profile and hold pressure from above only. The 'FB-2' model lands on the top of a 'F' Nipple Profile Seal Bore. The 'RB-2' model seats on the bottom NO-GO shoulder of a 'R' Nipple.

The Parveen 'FB-2' and 'RB-2' Equalizing Check Valves are manufactureed for Standard, H₂S and H₂S-CO₂ service.

Applications

1. Can be used as a plug to pressure test tubing.
2. To set hydraulically actuated packer with the check valve positioned below the packer.
3. For gas lift operations.
4. To be used as a standing valve in wells which have downhole electric pumps.

Ordering Information:
Please specify nipple model, seal bore size, check valve model, working pressure and temperature, percentage of H₂S and CO₂.

The Parveen 'V' Equalizing Check Valves are available in the following models:
'FWV'
run in Top No-Go Model 'F' Nipples and in Model 'L' Sliding Sleeves equipped with Top No-GO Nipple Profiles

'RZV'
run in Bottom No-Go 'R' Nipples.

Both models of equalizing check valves are run and set into Nipple Profiles and only allow upward flow of well fluids. They are firmly locked into the Nipple Profile and therefore cannot accidentally flow up hole. A 'C-1' Running Tool is used to run both valve assemblies. The pressure is equalized prior to retrieval by knocking off an Equalizing Plug. A standard Pulling Tool equipped with a 'B' Probe is utilized for retrieval purposes.

The Parveen 'FWV' and 'RZV' Equalizing Check Valves are manufactureed for Standard, H₂S and H₂S-CO₂ service.

Applications

1. Can be used as a plug to pressure test tubing.
2. To set hydraulically actuated packer with the check valve positioned below the packer.
3. For gas lift operations.
4. To be used as a standing valve in wells which have downhole electric pumps.

Ordering Information:
Please specify nipple model, seal bore size, check valve model, working pressure and temperature, percentage of H₂S and CO₂.