Products and specifications subject to change without notice.
Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
5/16
Version Push-in connection for semi-rigid tubing
(NFE 49100)
Ø 4 silenced exhaust
M5 connectable exhaust
NC Ø 4 connectable exhaust *
Ø 6 connectable exhaust *
Ø 4 silenced exhaust
NO Ø 6 silenced exhaust
Control
81 921 501
-
-
-
-
-
Simple plunger
"Miniature" series position detectors
81 921 701
-
-
-
-
-
Lever with plastic
roller
81 921 702
-
-
-
-
-
Lever with roller
bearing
81 921 707
-
-
-
-
-
Lever with one-way
trip plastic roller
Part numbers
Symbol
1
NC NC NC
Other information
*with barb for tube 0.106˝ (2.7) I.D. AND 5/32˝ (4) O.D.
Operating pressure psi (bar)
Orifice diameter inches (mm)
Flow at 90 psi (6 bars) cfm (NI/min)
Actuation force at 90 psi (6 bars) oz (N)
Circuit function : NC
Circuit function: NO
Operating temperature °F (°C)
Mechanical life operations
Weight grams
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
-
+20>+120 (-5>+50)
10 million
62
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
-
+20>+120 (-5>+50)
10 million
75
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
-
+20>+120 (-5>+50)
10 million
80
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
-
+20>+120 (-5>+50)
10 million
77
Characteristics
Exhaust
Poppet
PR = .590" (15)
PFC = .433 (11)
PRT = .563" (14.3)
Dimensions
81 921 501 81 921 701 - 81 921 702 81 921 707
Principle of operation Actuation travel
NC NO Vertical attack
Simple plunger
Actuation positions :
PA : Operating position (max output CV)
PFC : End of travel position
PO : Mid-position closed
(no exhaust, no outlet)
PRT : Release position
(max exhaust CV)
PR : Rest position
PA = .531" (13.5)
PO = .547" (13.9)
Ø4,2 .551"
(14)
1/2"
(13)
1/4"(6)
.787"
(20)
1.181"
(30)
.256"
(6.5)
1.594"
(40.5)
.374"
(6.5)
.787"
(20)
Ø.472 (12)
1-3/16"
(30)
1-3/4"
(44.5)
1.004"
(25.5)
1.004"
(25.5)
1/2"
(13)
1/4"(6)
1/2"
(13)
1/4"(6)
1.555"
(44.5)
1.004"
(25.5)
1.555"
(39.5)
1-3/16"
(30)
Use (metric) dimensions for critical data
Products and specifications subject to change without notice.
Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
5/17
5
-
-
-
81 921 717
81 921 912
81 921 902
Lever with roller
bearing
-
-
81 921 806
-
-
-
-
Lever with plastic
roller
-
-
81 921 714
-
-
-
Lever with roller
bearing
-
-
-
81 921 719
81 921 911
81 921 901
Lever with plastic
roller
81 921 717 - 81 921 719
81 921 901 - 81 921 902
81 921 911 - 81 921 912
36
2625,5
44,5
NC NONC
1
To order, specify :
Standard products
Standard products,
non stocked
Part number
Example : "Miniature" series position detectors 81 921 501
1
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
-
+20>+120 (-5>+50)
10 million
75
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
-
+20>+120 (-5>+50)
10 million
80
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
●
+20>+120 (-5>+50)
10 million
100
2 >120 (0.18>8)
0.106 (2.7)
7 (200)
63 (18)
●
●
+20>+120 (-5>+50)
10 million
100
81 921 806 - 81 921 714 - 81 921 911 - 81 921 912
PR = 1.555˝ (39)
PRT = .650˝ (16.5)
PO = .709˝ (18)
PA = .787˝ (20)
1.093˝ min. (26.5)
.827˝ (21)
.933˝ (23.7)
PR = 1.024˝ (26)
PR = 1.024˝ (26)
PFC = .783˝ (19.9)
PA = .901˝ (22.9)
PO = .937˝ (23.8)
PRT = .969˝ (24.6)
PRT = .890˝ (20)
PO = .787˝ (20)
PA = .650˝ (16.3)
PR=1.024˝(26)
.933˝ (23.7)
.827˝ (21)
PA = .720˝ (18.3)
PO = .646˝ (16.4)
PRT = .571˝ (14.5)
1.520˝ (38.6)
1.407˝ (36)
1.594˝ min. (40.5)
Use (metric) dimensions for critical data
1-3/4˝
(44.5)
1.004˝
(25.5)
1.024˝
(26)
1-3/16˝
(30)
1/4˝
(6)
1/2˝
(13)
Horizontal actuating 30° cam (other angles of attack are also possible, 45° even 90°).
With lever With lever With lever One-way trip lever
81 921 714
