上海祝茂阀门生产以下几种压力和材质：

弹簧微启式安全阀A21Y-16、弹簧微启式安全阀A21Y-16Q、弹簧微启式安全阀A21Y-16C、弹簧微启式安全阀A21Y-16P、弹簧微启式安全阀A21Y-16R

弹簧微启式安全阀A21Y-25、弹簧微启式安全阀A21Y-25Q、弹簧微启式安全阀A21Y-25C、弹簧微启式安全阀A21Y-25P、弹簧微启式安全阀A21Y-25R

弹簧微启式安全阀A21Y-40、弹簧微启式安全阀A21Y-40Q、弹簧微启式安全阀A21Y-40C、弹簧微启式安全阀A21Y-40P、弹簧微启式安全阀A21Y-40R

弹簧微启式安全阀A21Y-64、弹簧微启式安全阀A21Y-64Q、弹簧微启式安全阀A21Y-64C、弹簧微启式安全阀A21Y-64P、弹簧微启式安全阀A21Y-64R

弹簧微启式安全阀A21Y-100、弹簧微启式安全阀A21Y-100Q、弹簧微启式安全阀A21Y-100C、弹簧微启式安全阀A21Y-100P、弹簧微启式安全阀A21Y-100R

弹簧微启式安全阀A21Y-160、弹簧微启式安全阀A21Y-160Q、弹簧微启式安全阀A21Y-160C、弹簧微启式安全阀A21Y-160P、弹簧微启式安全阀A21Y-160R

弹簧微启式安全阀A21Y-320、弹簧微启式安全阀A21Y-320Q、弹簧微启式安全阀A21Y-320C、弹簧微启式安全阀A21Y-320P、弹簧微启式安全阀A21Y-320R

其压力有以下口径：A21Y-320C/P/R DN15安全阀、A21Y-320C/P/RDN20安全阀、A21Y-320C/P/R DN25安全阀、A21Y-320C/P/RDN32安全阀、A21Y-320C/P/RDN40安全阀、A21Y-320C/P/R DN50安全阀、A21Y-320C/P/R DN65安全阀、A21Y-320C/P/RDN80安全阀、A21Y-320C/P/RDN100安全阀、A21Y-320C/P/R DN125安全阀、A21Y-320C/P/R DN150安全阀、A21Y-320C/P/RDN200安全阀、A21Y-320C/P/R DN250安全阀、A21Y-320C/P/R DN300安全阀、A21Y-320C/P/RDN350安全阀、A21Y-320C/P/R DN400安全阀、A21Y-320C/P/R DN450安全阀、A21Y-320C/P/RDN500安全阀、A21Y-320C/P/R DN600安全阀、A21Y-320C/P/R DN700安全阀、A21Y-320C/P/RDN800安全阀；