Pressure maintaining valve, type ARI PRESO BR 753

in straight through form, spring controlled,

operating mode: the valve opens when the upstream pressure rises

Fig. 12.753: body: GG-25, PN 16

Fig. 22.753: body: GGG-40.3, PN 16

Fig. 32.753: body: 1.0619+N, PN 16

Fig. 52.753: body: 1.4408, PN 16