In this type of nozzle body, the diaphragm check valve is an integral part of the nozzle assembly. This design eliminates the pressure drop associated with ball-type check valves. This spring-backed diaphragm ensures dependable closure. Originally developed for use in aerial spraying, nozzle bodies of this design are now widely used whenever drip-free shutoff is required. For maximum operating pressures of 125 psi (9 bar).

Typical Assembly

• End cap subassembly
• Valve seat
• Strainer
• Orifice disc and core

8355

• Made of nylon with nylon/polypropylene end cap assembly.
• Check valve opens at 10 psi (0.7 bar) pressure.
• Choice of 1/8″ or 1/4″ NPT (F) inlet connections.
• Flow rate for 1/8″ is 3 gpm at 5 psi pressure drop (11.4 l/min at 0.34 bar).
• Flow rate for 1/4″ is 3.9 gpm at 5 psi pressure drop (15 l/min at 0.34 bar).
• Overall length 2-3/4″ (70 mm).
• Weighs 1-1/2 ounces (43 g).

12328-NYB

• Made of nylon withi Celcon bonnet.
• Check valve opens at 7 psi (0.5 bar) pressure.
• (M) inlet connection and (F) outlet connections.
• Choice of 1/2″ and 3/4″ NPT sizes.
• Flow rate for 1/2″ is 12 gpm at 5 psi pressure drop (45 l/min at 0.34 bar).
• Flow rate for 3/4″ is 16 gpm at 5 psi pressure drop (61 l/min at 0.34 bar).
• Overall length 3″ (76 mm).
• Weighs 9 ounces (0.26 kg).

8360

• Made of nylon with nylon/polypropylene end cap assembly.
• Check valve opens at 10 psi (0.7 bar) pressure.
• 1/4″ NPT (M) inlet connection.
• Flow rate of 2.25 gpm at 5 psi pressure drop (8.5 l/min at 0.34 bar).
• Overall length 2″ (51 mm).
• Weighs 1 ounce (28 g).