Laserfiche WebLink
1/4" (8 mm) FNPT <br />. 1- .. <br />Knurled Nut <br />I <br />1/4" (8 mm) <br />MNPT <br />1/4" (8 mm) <br />37° Male JIC <br />1/4" (8 mm) <br />MNPT <br />1/4" (8 mm) FNPT <br />3/8" (10 mn <br />MNPT <br />1/4 <br />37' <br />1/4" (8 mm) <br />MNNPTT 1/4° 37' Male JIC <br />Pneumatic Valve Actuator (P/N 17019) <br />On multiple cylinder systems the electric valve actuator <br />will open the primary cylinder and then, in a rapidly oc- <br />curring sequence, the pneumatic valve actuator(s) will <br />open all other cylinders using pressure from the primary <br />cylinder. <br />A pneumatic valve actuator attaches to the valve actu- <br />ation connection of each secondary cylinder. It receives <br />pressure from the pilot actuation port of the primary cyl- <br />inder through the pilot actuation check valve. It is brass <br />with a brass piston and pin. <br />Vent Check (P/N 10173) <br />The vent check is a safety device with 1/4 in (8 mm) <br />MNPT threads that is to be installed in the pilot actuation <br />line downstream of the pilot actuation check valve. It is <br />used to bleed off pressure that may accumulate in the <br />pilot actuation hose or piping minimizing the chance of <br />inadvertent pressurization of the pneumatic actuators or <br />discharge pressure switch. <br />Pilot Actuation Check Valve (P/N 18560) <br />A 1/4 in (8 mm) MNPT by 37' male JIC check valve is <br />installed in the pilot actuation port of the primary cylinder <br />valve with direction of flow OUT of the valve. When the <br />valve opens, pressure will be directed through the pilot ac- <br />tuation check valve to the pneumatic valve actuators on <br />the secondary cylinders. The purpose of the pilot actuation <br />check valve is to ensure the pneumatic actuator(s) remain <br />pressurized for the entire discharge period. <br />Pilot Actuation Adapter (P/N 18624) <br />A 3/8 in (10 mm) MNPT by 1/4 in (8 mm) FNPT brass <br />pipe bushing is fitted into the pilot actuation port of the <br />primary cylinder to facilitate the attachment of the pilot <br />actuation check valve. <br />Pilot Actuation Mid Line Tee (P/N 18622) <br />A 1/4 in (8 mm) 37' male JIC by MNPT brass branch tee <br />is utilized to attach the pilot actuation line to the pneu- <br />matic valve actuator. <br />Male NPT Adapter (P/N 18625) <br />A 1/4 in (8 mm) 37o male JIC by MNPT adapter fits into <br />the pilot actuation end line tee of the final secondary cyl- <br />inder to facilitate the attachment of the pilot actuation <br />line. It also may be utilized to allow the attachment of flex <br />hose to the discharge pressure switch. <br />DS1258 Revised: 21-Dec-2023 <br />Page 6 of 10 <br />