The Normally Closed valve senses the adjusted vacuum setpoint and turns the valve output on. The sensing vacuum range is 1 to 28″ Hg. Maximum signal pressure is 29.9″ Hg. Four mounting styles are available: Flush Mount, Manifold Mount, Panel Mount, and Pipe Thread Mount. The Flush Mount has 0.125″ diameter mounting holes for mounting on a flat surface. The Manifold Mount is designed to mount directly on pneumatic circuit boards or manifold subplates; a Buna-N o-ring is supplied. The Panel Mount has a unique thread that goes from 1/8-27 tapered pipe thread to 1/8-27 straight pipe thread: a mounting nut is supplied. The Pipe Thread Mount has 1/8-27 tapered pipe threads.
FEATURES
- Subminiature Size
- Low Differential
- Fast Response
- Adjustable Pressure Pilot Setpoint
- Normally Closed
SPECIFICATIONS
Operating Speed: Activate or release in 65 milliseconds
Signal Pressure: 29.9″ Hg maximum
Pilot Adjustment: 1 to 28″ Hg
Valve Pressure Range: 22 to 116 PSI (1.5 – 8 bar)
Temperature Limits: 40 to 120 °F (5 to 48 °C)
MATERIALS
Diaphragm: Polyurethane
Spring: Stainless Steel or Music Wire
PORT CONNECTIONS
Pilot Input:
10-32 female threads, furnished with barbed fitting:
B80: 10-32 UNF Barbed Fitting for Ø1.6 mm (1/16″) I.D. tubing
B85: 10-32 UNF Barbed Fitting for Ø3.2 mm (1/8″) I.D. tubing
B86: 10-32 UNF Barbed Fitting for Ø4.3 mm (0.170″) I.D. tubing
Valve Input & Output: Instant push-in fittings for Ø2.4 mm (3/32″) I.D. x Ø3.98 mm (5/32″) O.D. tubing (4mm o.d. tubing)
MOUNTING
Flush Mount: 0.125″ diameter mounting hole; use No. 4 self-tapping or 5-40 screw
Manifold Mount: Two 0.125″ diameter mounting holes; use No. 4 self-tapping or 5-40 screw (A Buna-N o-ring is supplied)
Panel Mount: External 1/8-27 NPT to 1/8-27 NPS, internal threads are 10-32 UNF. Ø11.11 mm (7/16″) diameter mounting hole is required. (A mounting nut is supplied)
Pipe Thread Mount: 1/8-27 male tapered pipe threads, internal threads are 10-32 UNF
