1. Ball valve ( size: 1/4" - 80" the max pressure can be 2500lb ) 2. Gate valve ( size: 1/4" - 80" the max pressure can be 2500lb ) 3. Butterfly valve ( size: 2" - 80" the max pressure can be 2500lb ) 4. Check valve ( size: 1/4" - 80" the max pressure can be 2500lb ) The main materials are stainless steel (304/304l/316/316l and forged ), carbon steel, and cast iron , etc 1. Ball valve ( size: 1/4" - 80" the max pressure can be 2500lb ) 2. Gate valve ( size: 1/4" - 80" the max pressure can be 2500lb ) 3. Butterfly valve ( size: 2" - 80" the max pressure can be 2500lb ) 4. Check valve ( size: 1/4" - 80" the max pressure can be 2500lb ) The main materials are stainless steel (304/304l/316/316l and forged ), carbon steel, and cast iron , etc