Norgren P72F Datasheet

See Section ALE-24 for Accessories

Littleton, CO USA Phone [phone] www.norgren.com

P72F

● Excelon design allows in-line or modular installation

● Controls increase of downstream pressure on

start up. Cylinders and other air operated devices are
eased into normal operating positions, reducing the
possibility of equipment damage and hazards to the
user.

● 3 port/2 position, normally closed, soft start valve

● Blocks inlet air and exhausts downstream air when

pilot signal is removed

● Solenoid pilot or air pilot operation

● Designed primarily for use in start-up and shutdown

of equipment, not as a frequently cycling directional
control valve. Norgren offers a wide variety of valves
designed for frequent cycling and other applications.
Please refer to the P72C and P74C valves, and to
other Norgren valve catalogs.

Excelon 72 Smooth Start/Exhaust Valve

1/4", 3/8" Port Sizes

ALE-17-6

ISO Symbols

Solenoid operated Air pilot

Ordering Information. Models listed are with PTF threads.Solenoid operated models include 24 VDC coil and plug without indicator .

* To select other solenoid type and coil voltage refer to alternative models table below.

Port Size Solenoid Operated* Weight Air Pilot Operated Weight

Model lb (kg) Model lb (kg)
1/4" P72F-2AC-PFA 2.00 (0.91) P72F-2AA-NNN 1.93 (0.88)
3/8" P72F-3AC-PFA 1.98 (0.90) P72F-3AA-NNN 1.91 (0.87)

P 7 2-F

★ ★

-

★★ ★ ★

Solenoid Manual Operator Substitute
Shrouded push button P
None N

Connectors Substitute
3 pin plug with cable gland, A
no indicator
Without N

** to order air pilot models also substitute ‘NNN’at

digits 8, 9 and 10 e.g.P72F-2GA-NNN.

Alternative Models

Coil Voltage Nominal Substitute

Power Rating
24 V d.c. 2 W F
12 V d.c. 2 W E
6 V d.c. 2 W D
220/240 V 4/2.5 VA B
50/60 Hz
110/120 V 4/2.5 VA A
50/60 Hz
No coil 2 W Z
No solenoid N

Operator Substitute
Air pilot** A
22 mm miniature solenoid C
CNOMO L

Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G

Port Size Substitute
1/4" 2
3/8" 3

P72F Smooth Start/Exhaust Valve

Littleton, CO USA Phone [phone] www.norgren.com

ALE-17-7

All Dimensions in Inches (mm)

Technical Data

System air supply:Turn on system air supply prior to applying pilot signal to operator.

Failure to do so may cause valve to continuously exhaust.

Fluid: Compressed air
Maximum pressure solenoid operated:

Dependant on solenoid rating

[must not exceed 250 psig (17 bar)]
Maximum pressure pilot operated: 250 psig (17 bar) max.
Minimum operating pressure: 44 psig (3 bar)
Operating temperature solenoid operated:

Dependant on solenoid rating

[must be within range 0°* to 150°F (-20°* to 65°C)]
Operating temperature pilot operated:

0°* to 150°F (-20°* to 65°C)

* Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C).

Air Pilot Port:

10-32 UNF with PTF main ports

M5 with ISO main ports
Exhaust Port:

1/4" PTF with PTF main ports

1/4" ISO Rc with ISO Rc main ports

1/4" ISO Rc with ISO G main ports
Maximum flow with 90 psig (6.3 bar) inlet pressure and pressure drop of 7 psig

(0.5 bar): 45 scfm (21 dm

3

/s) [P1to P2= Cv 1.59] [P2to P3= Cv 1.72]

Snap pressure:

Full flow when downstream pressure reaches 50 – 80% of inlet pressure
Charge time:

For 0.53 gallon US (2 liter) downstream volume and 90 psig (6.3 bar) inlet

pressure

Minimum 0.8 sec.

Typical maximum 99 sec.
Materials

Body: Zinc alloy

Elastomers: Synthetic materials

Filter discs: Sintered plastic

Internal components: Brass/steel

Typical Performance Characteristics

Solenoid operated

Air pilot operated

PORT SIZE: 1/4

psid

bar d

0.8

10

0.6
8

6

0.4

PRESSURE DROP

4

0.2
2

0

0

0 10 20 30 40 50 60 scfm
0 5 10 15 20 25 dm3/s

psig

bar g

16

200

12

160

120

8

OUTLET PRESSURE

80

4

40

0

0

0 20 40 60 80 100 120

FLOW CHARACTERISTICS

"

PERCENTAGE SNAP POINT

0.53 gal (2 liter) downstream volume

SNAP POINT

CHARGE TIME - (S)

INLET PRESSURE: psig (bar g)

44
(3)

58

(4.0)

91

(6.3)

116

150
(10)

(8)

2.60 (66)

0.95 (24)

4.57 (116)

1/4" exhaust port

1.89 (48)

6.38 (162)

2.60 (66)

0.95 (24)

1.89 (48)

Pilot port

1.77 (45)

3.58 (91)

1/4" exhaust port

See Section ALE-24 for Accessories

Littleton, CO USA Phone [phone] www.norgren.com

P74F

● Excelon design allows in-line or modular installation

● Controls increase of downstream pressure on

start up. Cylinders and other air operated devices are
eased into normal operating positions, reducing the
possibility of equipment damage and hazards to the
user.

● 3 port/2 position, normally closed, soft start valve

with optional manual lockout slide

● Blocks inlet air and exhausts downstream air when

pilot signal is removed or when the optional manual
lockout slide is closed

● Optional manual slide can be padlocked in closed

position

● Solenoid pilot or air pilot operation

● Designed primarily for use in start-up and shutdown

of equipment, not as a frequently cycling directional
control valve. Norgren offers a wide variety of valves
designed for frequent cycling and other applications.
Please refer to the P72C and P74C valves, and to
other Norgren valve catalogs.

Excelon 74 Smooth Start/Exhaust Valve

3/8", 1/2", 3/4" Port Size

ALE-17-8

ISO Symbols

Solenoid operated

Air pilot

P 7 4-F

★ ★

-

★★ ★ ★

Solenoid Operator Substitute
Shrouded push button P
Screw driver slot**** S
None N

Connectors Substitute
3 pin plug with cable gland, A
no indicator light
Cable grip w/indicator light † B
1/2” Conduit C
Without N

** To order air pilot models also substitute ‘NNN’at digits 8, 9 and 10 e.g. P74F-4AA-NNN.
**** Not available with D or M operator.
† Use with A and F coils only.

Alternative Models

Coil Voltage Nominal Substitute

Power Rating
24 V d.c. 2 W F
12 V d.c. 2 W E
6 V d.c. 2 W D
220/240 V 4/2.5 VA B
50/60 Hz
110/120 V 4/2.5 VA A
50/60 Hz
No coil 2 W Z
No solenoid N

Port Size Substitute
3/8" 3
1/2" 4
3/4" 6

Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G

Operator Substitute
Air pilot** A
Air pilot with manual lockout slide** B
22 mm miniature solenoid C
22 mm miniature solenoid with
manual lockout slide D
CNOMO solenoid L
CNOMO solenoid with
manual lockout slide M

Port Size Solenoid Operated* Weight Air Pilot Operated Weight

Model lb (kg) Model lb (kg)
3⁄8" P74F-3AC-PFA 2.4 (1.08) P74F-3AA-NNN 2.3 (1.05)
1⁄2" P74F-4AC-PFA 2.3 (1.05) P74F-4AA-NNN 2.2 (1.02)
3⁄4" P74F-6AC-PFA 3.1 (1.41) P74F-6AA-NNN 3.0 (1.35)

* To select other solenoid type and coil voltage refer to alternative models table below.

Ordering Information.Models listed are with PTF ports.Solenoid operated models include 24 V d.c.coil and plug without indicator.

P74F Smooth Start/Exhaust Valve

Littleton, CO USA Phone [phone] www.norgren.com

ALE-17-9

All Dimensions in Inches (mm)

Technical Data

System air supply:Turn on system air supply prior to applying pilot signal to operator.

Failure to do so may cause valve to continuously exhaust.

Fluid: Compressed air
Maximum pressure solenoid operated:

Dependant on solenoid rating

[must not exceed 250 psig (17 bar)]
Maximum pressure pilot operated: 250 psig (17 bar) max.
Minimum operating pressure: 44 psig (3 bar)
Operating temperature solenoid operated:

Dependant on solenoid rating

[must be within range 0°* to 175°F (-20°* to 80°C)]
Operating temperature pilot operated:

0°* to 175°F (-20°* to 80°C)
* Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C).
Air pilot port:

ISO Rc1/4 with ISO Rc main por ts

ISO Rc1/4 with ISO G main por ts

1/4” PTF with PTF main ports
Exhaust port:

ISO G1/2 with ISO G main por ts

ISO G1/2 with ISO Rc main por ts

1/2” PTF with PTF main ports
Typical flow with 90 psig (6.3 bar) inlet pressure and pressure drop of 7 psig (0.5 bar):

57 dm

3

/s (P1to P2= Cv 4.4) (P2to P3= Cv 5.6)

Snap pressure:

Full flow when downstream pressure reaches 50 – 80% of inlet pressure
Charge time:

For 2 liter downstream volume and 90 psig (6.3 bar) inlet pressure:

0.2 sec. minimum

76 sec. maximum
Materials

Body: Aluminium

Intermediate body: Aluminium

Elastomers: Synthetic materials

Filter discs: Sintered plastic

Internal components: Brass/steel

Top plate: Zinc

Exhaust bonnet: Zinc

Typical Performance Characteristics

Solenoid operated

Solenoid operated plus

manual shut-off with lockout

Air pilot operated

Air pilot operated plus

manual shut-off with lockout

FLOW CHARACTERISTICS

PORT SIZE: 1/2"

psid

bar d

0.8

10

0.6
8

6

0.4

PRESSURE DROP

4

0.2
2

0

0

0 40 80 120 160 200 240 scfm
0 20 40 60 80 100 dm3/s

psig

bar g

16

200

12

160

120

8

OUTLET PRESSURE

80

4

40

0

0

0 20 40 60 80 100 120

INLET PRESSURE: psig (bar g)

44

(3)

PERCENTAGE SNAP POINT

SNAP POINT

91

58

116

(6.3)

(4.0)

CHARGE TIME - (S)

(8)

AIR FLOW

2 quart (2 liter) downstream volume

150
(10)

1.46 (37)

3.31 (84)

4.37 (111) max.

1/2 PTF (G1/2)

1.18 (30) A/F

6.50 (165)

3.78 (96) min.

8.70 (221)

1.46 (37)

3.31 (84)

4.37 (111) max.

1/2 PTF (G1/2)

1.18 (30) A/F

4.21 (107)

1/4 PTF (Rc1/4)

3.78 (96) min.

6.38 (162)

3.31 (84)

1.46 (37)

2.91 (74)

1/2 PTF (G1/2)

1.18 (30) A/F

6.14 (156)

8.35 (212)

3.31 (84)

1.46 (37)

2.91 (74)

1/2 PTF (G1/2)

1.18 (30) A/F

5.67 (144)

3.46 (88)

1/4 PTF (Rc1/4)