Manual adjustable vacuum valve for SICO Nevada and S250 Premium vacuum sealers.
This valve replaces the filter cover in the SICO S250 Premium and Nevada vacuum sealers allowing the user to adjust the maximum vacuum pressure that the machine will achieve.
To adjust the vacuum pressure the machine is started and the dial on the valve is turned until the pressure gauge shows the desired vacuum pressure.
When the valve is adjusted to a lower vacuum pressure the heat seal function must be activated manually.
The setting can be duplicated in the future by adjusting the machine to the same vacuum pressure.
By closing the valve completely the machine will revert to standard vacuum pressure.
NOTE: Because the vacuum chamber pressure is lower, the lid pressure on the seal bands is not as high as when the machine is running full vacuum. Therefore it is recommended that a slightly higher heat setting is used when the machine is being run in this manner.