www.dmic.com
DMIC Flow Control Catalog
Copyright ©2019 Delaware Mfg.
DFC-2001A
Call Toll Free 1-800-248-3642
In Canada 1-800-320-3642
Page 20
CVH
Physical Parameters
BODY
Carbon Steel (Opt. all Stainless Steel)
POPPET
Hardened Carbon Steel (Opt. all S/S)
SPRING
Helical, Spring Steel
POPPET LANDING ZONE
Carbon Steel, Oversize (Opt. All S/S)
RETAINER
Steel
SEALING
Metallic Hard Seat
TEMP RANGE
-20˚F/400˚F (-29˚C/204˚C)
CVH Check Valves
Guided poppet design for 10,000 PSI service,
¼" to 2" NPT/SAE/BSPP/BSPT/6149
Flow restricting check valves permit ow in one direction once the
line pressure exceeds the cracking pressure of the poppet spring.
Reverse ow is blocked, however an optional poppet orice can
permit some backow.
• 10,000 psi pressure rating.
• Carbon steel and stainless steel versions.
• Port sizes from
1
⁄4” to 2”.
• Choice of threaded connection types.
• Choice of “cracking” pressures.
• One-piece body eliminates leak points.
• Guided poppet ensures positive sealing and longevity.
• Optional poppet orice supports intentional backow.
• Metal to metal seat is suitable for hydraulic applications.
• Optional soft seat versions available for gaseous and
low viscosity liquid applications (Model CVHG).
Standard
05 5 PSI (0.35 Bar)
65 65 PSI (4.5 Bar)
Optional
15 15 PSI (1.03 Bar)
30 30 PSI (2.1 Bar)
75 75 PSI (5.2 Bar)
135 135 PSI (9.3 Bar)
Body
1
Carbon Steel
2
Stainless Steel
Internal
1
Carbon Steel
2
Stainless Steel
Orice (optional)
031
1
⁄32"
062
1
⁄16"
093
3
⁄32"
125
1
⁄8"
156
5
⁄32"
188
3
⁄16"
2000
CVH
65
-
S 1 1
031
Size Codes
Code Port Size
0250 ¼"
0375
3
⁄8"
0500 ½"
0625
5
⁄8"
0750 ¾"
1000 1"
1250 1¼"
1500 1½"
2000 2"
Port Thread
N NPT
S SAE ORB
B BSPP
Ordering Codes
www.dmic.com
DMIC Flow Control Catalog
Copyright ©2019 Delaware Mfg.
DFC-2001A
Call Toll Free 1-800-248-3642
In Canada 1-800-320-3642
Page 21
CVH Check Valves
CVH
Nominal
Size
Performance
Data
Dimensions (inches)
Flow
GPM
Working
Pressure
A
Hex
B
Length
Lbs.
CVH**-0250N
¼"
5
GPM
10,000
PSI
0.75 2.14 0.24CVH**-0250S
CVH**-0250B
CVH**-0375N
3
⁄8"
8
GPM
10,000
PSI
0.88 2.50 0.48CVH**-0375S
CVH**-0375B
CVH**-0500N
½"
15
GPM
10,000
PSI
1.13 3.13 0.64CVH**-0500S
CVH**-0500B
CVH**-0750N
¾"
25
GPM
10,000
PSI
1.50 3.81 1.03CVH**-0750S
CVH**-0750B
CVH**-1000N
1"
40
GPM
10,000
PSI
1.75 4.31 2.18
CVH**-1000S
CVH**-1000B
CVH**-1000IU
CVH**-1250N
1¼"
70
GPM
10,000
PSI
2.25 5.04 4.19
CVH**-1250S
CVH**-1250B
CVH**-1250IU
CVH**-1500N
1½"
100
GPM
10,000
PSI
2.50 5.50 5.16
CVH**-1500S
CVH**-1500B
CVH**-1500IU
CVH**-2000N
2"
150
GPM
10,000
PSI
3.25
(3.50)**
Round
Body
6.75 11.00
CVH**-2000S
CVH**-2000B
CVH**-2000IU
0
5
10
15
20
25
30
35
0 5 10 15 20 25 30
Pressure Drop (psi)
Flow (gpm)
'CVH' Pressure Drop Curve
Valve Sizes ¼" to ¾"
Media: ISO 100/SAE 30 Hydraulic Oil, 104°F
0250
0375
0500
0750
FOR REFERENCE ONLY*
DMIC© 2019
0
5
10
15
20
25
0 40 80 120 160 200
Pressure Drop (psi)
Flow (gpm)
'CVH' Pressure Drop Curve
Valve Sizes 1" to 2"
Media: ISO 100/SAE 30 Hydraulic Oil, 104°F
2000
FOR REFERENCE ONLY*
DMIC© 2019
1000
1250
1500
0
5
10
15
20
0 10 20 30 40 50
Pressure Drop (psi)
Flow (gpm)
'CVH' Pressure Drop Curve
Valve Sizes 1/2" to 1"
Media: Nitrogen N
2
FOR REFERENCE ONLY*
DMIC© 2018
0500
0750
1000
This valve series is factory sealed and disassembly will destroy the valve and void the warranty. Due
to our policy of continual product improvement, the specications in this catalog
may change without notice. When designing by spec, please request a certied print.