303-699-1135
Series 4 Air-Pilot operated valves
Part Number Mounting Function Flow Rate Min. pil P
438-35 in line / manifold
3/2 NC
700
2.5 bar (36 psi)
(Part Listed Is BSP - For NPT Sizes Add TF to Order Code)
Coding Example
Coding Example
4 Series 4
5 Function (Way/Position) = 3/2 Normally Closed4 = 3/2 Normally Open5 = 5/26 = 5/3 Center Closed7 = 5/3 Center Open (exhausting)
8 Ports 8 = 1/8"4 = 1/4"2C = 1/2"
35 Actuation / Return 33 = pneum. / pneum. (series 4) Double Air-Pilot34 = pneum. / differ. (series 4) Double Air-Pilot (biased override)35 = pneum. / spring (series 4) Single Air Pilot
TF Ports TF = NPTF
Technical Specifications
Valve group 3-way/2-position, 5-way/2-position, 5-way/3-position
Construction Air-Pilot, in-line ported
Mounting through holes in valve body
Materials Anodized body, stainless steel spool, Buna-N seals
Threaded port sizes 1/8", 1/4", 1/2" NPTF
Installation in any position
Operating temperature 0 - 80°C (with dry air at -20°C), 32°F - 176°F (with dry air at -4°F)
Fluid Filtered air (32 micron or less recommended)
Lubricant Not required; otherwise, oil compatible with Buna-N, (3° - 10° E) ISOVG32 grade (32 centistrokes)
Pneumatic Data
Operating pressure P = -0.9 -10 bar, 0-145 psi (down to 28" Hg vacuum rated)
Control pressure min. press. (see valve description)
Nominal pressure 6 bar - 87 psi
Nominal flow *Qn Series 4: 1/8" = 700 NL/min. (24.72 SCFM), Cv = .73
Fluid filtered air, without lubrication** (25 micon recommended)
RoHS Compliant Liquid Tight Strain Relief Fittings, Cord Grips, Cable Glands, Circular Connectors, Conduit System, Industrial Enclosures and Other Related Cable Management Products which are rated the best in the industry.
Fittings
Valves
