The Series 20 Flowgrid® pilot is a reversible pressure‑control regulator, primarily deployed as a control pilot for unloading‑type pilot‑operated systems. It supports pressure‑reducing (PRV), back‑pressure (BPV / relief), and differential‑pressure (DPV) services and is suitable for both gas and liquid process media.
– **Series 20**: Brass construction, control‑pressure range: 3‑450 psig (0.21‑31 bar)
– **Series 20H**: High‑pressure brass construction, control‑pressure range: 200‑900 psig (14‑62 bar)
– **Series 20S**: Stainless‑steel construction, control‑pressure range: 3‑450 psig (0.21‑31 bar)
– **Series 20HS**: High‑pressure stainless‑steel construction, control‑pressure range: 200‑900 psig (14‑62 bar)
– **Series 20L‑B**: Bronze construction, control‑pressure range: 5 i.w.c.‑8 psig (12 mbar‑0.55 bar)
– **Series 20L‑A**: Aluminum construction, control‑pressure range: 5 i.w.c.‑8 psig (12 mbar‑0.55 bar)