Norgren T74 Datasheet

See Section ALE-24 for Accessories

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

T74

● EXCELON design allows in-line or modular

installation

● T74B 2-port/2-position shut-off valves no exhaust

● T74T 3-port/2-position shut-off valves with 1/8"

tapped exhaust

● T74E 3-port/2-position lockout valves help conform to

OSHA Lockout Regulations in USA market. Exhaust
outlet is not tapped.

● Valves can be locked in the closed position only

● Modular installations with EXCELON 72, 73, and 74

series can be made to suit particular applications

Excelon T74 Shut-Off & Lockout Valves

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

ALE-15-6

ISO Symbols

2-Port/2-Position 3-Port/2-Position

2-Port/2-Position 3-Port/2-Position OSHA 3-Port/2-Position
Padlock closed only. Padlock closed only. Padlock closed only. Weight

Port Size No exhaust outlet. Unthreaded exhaust outlet. Threaded exhaust port. lbs (kg)
3/8" T74B-3AA-P1N T74E-3AA-P1N T74T-3AA-P1N 0.69 (0.32)
1/2" T74B-4AA-P1N T74E-4AA-P1N T74T-4AA-P1N 0.65 (0.30)
3/4" T74B-6AA-P1N T74E-6AA-P1N T74T-6AA-P1N 0.62 (0.28)

Ordering Information. Models listed have PTF threads.

Alternative Models

T 7 4

-

★ ★ ★

-

1A P

★

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

Threads Substitute
PTF A
ISO Rctaper B
ISO G parallel G

Options Substitute
None N
Silencer installed in T74T

S

exhaust port

Valve Type Substitute
2-port/2-position B

Black slide, No exhaust outlet
3-port/2-position E
Yellow slide, Unthreaded exhaust outlet
3-port/2-position T
Red slide, Threaded exhaust port

T74 Shut-off & Lockout Valves

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

ALE-15-7

Technical Data

Fluid: Compressed air
Maximum pressure: 250 psig (17 bar)
Temperature range: -30° to 150°F (-34° to 65°C)

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

Cv factor

IN to OUT por ts:

3/8" ports: 7.1
1/2" ports: 8.1
3/4" ports: 7.7

OUT to EXHAUST ports on 3-port/2-position valves: 0.2

Exhaust port threads on T74T models:

1/8 PTF with PTF main ports

1/8" ISO Rc with ISO G and ISO Rcmain ports
Hole diameter in slide for padlock:0.29" (7.5 mm)
Materials

Body: Zinc

Slide: Acetal plastic

Elastomers: Nitrile

Service kit includes seals and slide.

Service Kits

Item Type Part Number

T74B (black slide) 4384-711

Service kit T74E (yellow slide) 4384-710

T74T (red slide) 4384-713

All Dimensions in Inches (mm)

1.22 (31)

1.55 (39)

OPEN

2.90 (74)

2.74 (70)