Page 71 - Parker- Parker global air preparation system

Catalog 0750-3 US P31T / P32T Series
Global Air Preparation System Combined Soft Start / Dump Valves

Technical Information Flow Charts

Fluid: Compressed air P31TA 1/4" Soft Start & Dump Valve
Max. pressure solenoid operated: 10 bar (150 psig) Inlet Pressure - 6.3 bar (91.3 psig)
8
Max. pressure air pilot operated: 17 bar (250 psig) 100 10 bar
9.0 bar
Min. operating pressure: 3 bar (44 psig) 6 91.4 psig 8.0 bar 130.5 psig 145 psig
6.3 bar
Temperature Max.* solenoid operated: -10°C to 50°C 80 5 6.0 bar 101.5 psig 116 psig
7 bar
87 psig
(14°F to 122°F) Secondary Pressure - (psig) 60 Secondary Pressure - bar 7 4 5.0 bar
Temperature Max.* air pilot operated: -20°C to 80°C 3 3.0 bar 4.0 bar 72.5 psig
58 psig
(-4°F to 176°F) 40 2 43.5 psig
Air pilot port: 1/8" 20 1
Exhaust port: P31T - 1/4" / P32T - 1/2"
0
30
35
Gauge port: P31T - 1/8" / P32T - 1/4" 0 5 10 15 20 25 Flow - dm /s 40 45 50 55 60 65
3
Typical flow with 6.3 bar 0 20 40 60 80 100 120
3
inlet pressure and 1 bar P31T 17 dm /s (36 scfm) Flow - (scfm)
3
pressure drop: P32T 48 dm /s (101 scfm) P32TA 1/2" Soft Start & Dump Valve
* Air supply must be dry enough to avoid ice formation at temperatures below +2°C 10 bar
Snap pressure: Full flow when downstream pressure reaches 50% of the inlet pressure Inlet Pressure - 6.3 bar (91.3 psig) 145 psig
8
9.0 bar
6.3 bar
Material Specifications 100 91.4 psig 7 bar 116 psig 130.5 psig
8.0 bar
6.0 bar
Body: Aluminum 80 6 5 5.0 bar 101.5 psig
87 psig
Body cover: Polyester Secondary Pressure - (psig) 60 Secondary Pressure - bar 7 4 4.0 bar 72.5 psig
Seals: Nitrile NBR 40 3 43.5 psig 58 psig
3.0 bar
Mounting Brackets 20 2 1
Part number 0 0 0 20 40 60 80 100 120 140
Description P31T Flow - dm /s
3
L-bracket mounting kit P3HKA00ML 0 40 80 120 160 200 240 280
Flow - (scfm)
Foot bracket mounting kit P3HKA00MC
Note:
For solenoid operators and cable plugs (connectors) see pages 76 to 77.
Dimensions mm (inches)
P31T P32T
- 5 + - 5 + (2.87)
73

136 1/8" 1/4"
166 (5.35) Gauge 174.5 Gauge
(6.53) 84 Port (6.87) Port
(3.30) 227.3 109.5
37 (8.95) (4.31)
(1.45) 64.5
(2.53)
30.5
(1.20)

4 53
Soft Start Function: 40 (2.08)
(0.15) (1.57)
24 6
57 (0.94) (0.23)
50% 57.2
(2.24) (2.25)
1 Start signal
2 Switching time delay 26
3 Gradual pressure build up 75 (1.02)
4 Operating pressure p 2 (=p 1 ) For mounting brackets see page 56. (2.95)
71 Parker Hannifin Corporation
Pneumatic Division
Richland, Michigan
www.parker.com/globalfrl