ALDACO DUAL CHECK VALVE
DUAL-CHECK® VALVES An Aladco Dual Check valve is an assembly of two parallel check valves that can be overridden by air piloting (internally plumbed). The Dual-Check is for pneumatic applications and can be used in either sanitary or harsh/dirty environments.
A typical use of a Dual-Check® valve involves combining it with a direction control valve to control air flow from both ports of a double acting cylinder. With an appropriate combination of direction control valves and other pneumatic components, a cylinder position control system using a Dual-Check® can handle both normal position control and standby or safety stop conditions. A combined valve system can have excellent failsafe and assured control properties.
Dual Check Features • The rugged valve body is anodized 6061 aluminum. Internal aluminum components are 6061 aluminum.
Dual-Check Piloting
• Standard seals are BunaN (-30 to 150F temperature range). Viton seals (-15 to 400F temperature range) are an available option. • Superior, self cleaning ball seal provides long product life. (MTTF is over 100 million cycles). • Typical operating pressure range is 15-140 PSI.
Piloting Pressure (V1 &V2 Differential) (PSI)
50
• Springs are high fatigue resistant nickel coated 302 Stainless Steel. (MTTF is over 100 million cycles).
45 40 35 30 25 20 15 10 5 0
• The valves are tamper resistant and do not require maintenance. The valves do not require lubricated air, but can be used with lubricated air.
0
10
20
30
40
50
60
70
80
90 100 110 120
Checked Pressure (PSI)
1/8"
1/4" -1/2"
3/4"
10-32
Aladco,LLC 1100B South Prairie Ave., Waukesha, WI 53186-1653 Tel 262-544-5994 • www.aladco.com R
Rev 3-14
DIMENSION AND SPECIFICATION DATA
(A - L dimensions are in inches)
Port Size 10-32
A
B
C
D
E
F
G
H
J
K
L
Weight
Cv
2.5
1.00
0.75
0.25
0.12
2.00
0.85
1.70
0.38
2.10
0.18
0.25 lb
0.2
1/8”
3.38
1.75
1.00
0.69
0.25
2.00
1.17
1.03
0.68
2.02
0.28
0.75 lb
0.8
¼”
4.75
2.50
1.50
0.69
0.31
3.38
1.62
1.51
0.97
2.81
0.28
1.5 lb
1.7
3/8”
4.75
3.00
1.50
0.69
0.44
3.38
1.62
1.51
0.97
2.81
0.28
2.0 lb
1.7
½”
4.75
3.00
1.50
0.69
0.44
3.38
1.62
1.51
0.97
2.81
0.28
2.0 lb
1.7
3/4”
5.10
3.00
1.50
0.60
0.32
4.0
1.71
1.78
0.73
3.73
0.28
2.0 lb
3.2
Model Type 62 Schematic
Model Types 60 & 61 Schematic
MODEL ORDERING INFORMATION
Valve model numbers are made up of 3 two character fields (6 total characters) with an optional suffix. SEAL TYPE
OPTION SUFFIX
01 - BunaN Seals 02 - Viton Seals
blank NPTF Threaded ports BSPP BSPP Threaded ports
Model Number
XX
MODEL TYPE 60 Dual-Check -- Extended Override Button 61 Dual-Check -- Flush Override Button 62 Dual-Check – No Manual Override
XX
XX
X
INLET OUTLET PORT THREADING 32 12 25 38 50 75
10-32 UNF Thread (M5 optional) 1/8” NPTF Thread (1/8” BSPP optional) ¼” NPTF Thread (1/4” BSPP optional) 3/8” NPTF Thread (3/8” BSPP optional) 1/2” NPTF Thread (1/2” BSPP optional) 3/4” NPTF Thread (3/4” BSPP optional)
Model examples: Model 603801 is a Dual-Check valve with 3/8” NPTF threaded Inlet/Outlet ports, BunaN seals and an extended override button. Model 603801BSPP is a Dual-Check valve with 3/8” BSPP Inlet/Outlet ports, BunaN seals and an extended override button. Aladco,LLC 1100B South Prairie Ave., Waukesha, WI 53186-1653 Tel 262-544-5994 • www.aladco.com R
Rev 3-14
A typical use of a Dual-Check® valve involves combining it with a direction control valve to control air flow from both ports of a double acting cylinder. With an appropriate combination of direction control valves and other pneumatic components, a cylinder position control system using a Dual-Check® can handle both normal position control and standby or safety stop conditions. A combined valve system can have excellent failsafe and assured control properties.
Dual Check Features • The rugged valve body is anodized 6061 aluminum. Internal aluminum components are 6061 aluminum.
Dual-Check Piloting
• Standard seals are BunaN (-30 to 150F temperature range). Viton seals (-15 to 400F temperature range) are an available option. • Superior, self cleaning ball seal provides long product life. (MTTF is over 100 million cycles). • Typical operating pressure range is 15-140 PSI.
Piloting Pressure (V1 &V2 Differential) (PSI)
50
• Springs are high fatigue resistant nickel coated 302 Stainless Steel. (MTTF is over 100 million cycles).
45 40 35 30 25 20 15 10 5 0
• The valves are tamper resistant and do not require maintenance. The valves do not require lubricated air, but can be used with lubricated air.
0
10
20
30
40
50
60
70
80
90 100 110 120
Checked Pressure (PSI)
1/8"
1/4" -1/2"
3/4"
10-32
Aladco,LLC 1100B South Prairie Ave., Waukesha, WI 53186-1653 Tel 262-544-5994 • www.aladco.com R
Rev 3-14
DIMENSION AND SPECIFICATION DATA
(A - L dimensions are in inches)
Port Size 10-32
A
B
C
D
E
F
G
H
J
K
L
Weight
Cv
2.5
1.00
0.75
0.25
0.12
2.00
0.85
1.70
0.38
2.10
0.18
0.25 lb
0.2
1/8”
3.38
1.75
1.00
0.69
0.25
2.00
1.17
1.03
0.68
2.02
0.28
0.75 lb
0.8
¼”
4.75
2.50
1.50
0.69
0.31
3.38
1.62
1.51
0.97
2.81
0.28
1.5 lb
1.7
3/8”
4.75
3.00
1.50
0.69
0.44
3.38
1.62
1.51
0.97
2.81
0.28
2.0 lb
1.7
½”
4.75
3.00
1.50
0.69
0.44
3.38
1.62
1.51
0.97
2.81
0.28
2.0 lb
1.7
3/4”
5.10
3.00
1.50
0.60
0.32
4.0
1.71
1.78
0.73
3.73
0.28
2.0 lb
3.2
Model Type 62 Schematic
Model Types 60 & 61 Schematic
MODEL ORDERING INFORMATION
Valve model numbers are made up of 3 two character fields (6 total characters) with an optional suffix. SEAL TYPE
OPTION SUFFIX
01 - BunaN Seals 02 - Viton Seals
blank NPTF Threaded ports BSPP BSPP Threaded ports
Model Number
XX
MODEL TYPE 60 Dual-Check -- Extended Override Button 61 Dual-Check -- Flush Override Button 62 Dual-Check – No Manual Override
XX
XX
X
INLET OUTLET PORT THREADING 32 12 25 38 50 75
10-32 UNF Thread (M5 optional) 1/8” NPTF Thread (1/8” BSPP optional) ¼” NPTF Thread (1/4” BSPP optional) 3/8” NPTF Thread (3/8” BSPP optional) 1/2” NPTF Thread (1/2” BSPP optional) 3/4” NPTF Thread (3/4” BSPP optional)
Model examples: Model 603801 is a Dual-Check valve with 3/8” NPTF threaded Inlet/Outlet ports, BunaN seals and an extended override button. Model 603801BSPP is a Dual-Check valve with 3/8” BSPP Inlet/Outlet ports, BunaN seals and an extended override button. Aladco,LLC 1100B South Prairie Ave., Waukesha, WI 53186-1653 Tel 262-544-5994 • www.aladco.com R
Rev 3-14
