My sons donated three used CF 4.5k paintball tanks. I decided to try this non regulated $50 valve as regulators did not come with tanks.
Mine came with no leaks and the two small gauges were within 50 psi of my 3” test gauge with 100 psi divisions.
The valve is smooth but needs to be cracked slowly for smaller reservoirs. I robbed one of my Yong Heng brass burst disk, punched tiny center hole and dropped in fill hose port that you have to screw in to use. Disk is between nylon seal washer and hose fitting. Much reduced flow now. I filled my Disco rat smacker to 2k, no problems. I de-rated tanks to 4k max, but wish the cheap valve had adjustable output reg for max safety, no?
https://www.amazon.com/dp/B09D7R7GWH?psc=1&ref=ppx_yo2ov_dt_b_product_details
Mine came with no leaks and the two small gauges were within 50 psi of my 3” test gauge with 100 psi divisions.
The valve is smooth but needs to be cracked slowly for smaller reservoirs. I robbed one of my Yong Heng brass burst disk, punched tiny center hole and dropped in fill hose port that you have to screw in to use. Disk is between nylon seal washer and hose fitting. Much reduced flow now. I filled my Disco rat smacker to 2k, no problems. I de-rated tanks to 4k max, but wish the cheap valve had adjustable output reg for max safety, no?
https://www.amazon.com/dp/B09D7R7GWH?psc=1&ref=ppx_yo2ov_dt_b_product_details