冠调压阀R40-200-RNLGR40-200-BNLGR40-205-BNSA,
R40-205-BNLGR40-200-BNEAR40-205-RNLAR40-205-RNSA,
Norgren英国诺冠调压阀R40-200-RNLAR40-200-RNSGR41-204-BNSB,
R41-204-BNSGR41-206-BNSAR41-204-BNSAR43-401-NNLD,
Norgren英国诺冠调压阀R43-406-NNEGR43-301-NNSGR43-301-NNLG,
R43-301-NNLAR43-301-NNLDR43-301-NGSAR81-200-LNKA,
Norgren英国诺冠调压阀R83-200-RNNAR83-212-NNLAR83-200-RNLA,
R91G-2GK-NENR91G-2GK-RLNR91G-2GK-NLNR91W-2GK-NEN,
R91W-2GK-NLN英国诺冠（NORGER）调压阀,
,
台湾海瑞HERY单向减压阀部分型