CHECK VALVES
General purpose xed cracking pressure
check valve (MAWP 3000 psig)
Adjustable cracking pressure check valve (MAWP 3000 psig)
H-400 SERIES
VALVES & ACTUATORS
GENERAL PURPOSE FIXED CRACKING PRESSURE CHECK VALVE H-400 SERIES
FEATURES
n
316 St.St. and Brass construction
n
Moderate Pressure Characteristics up to 3000 psi (206 bar)
n
Compact Design
n
Variable xed cracking-pressure springs
n
HAM-LET LET-LOK®, Male & Female NPT, and HTC®
Face-Seal Bead Ends.
MATERIALS OF CONSTRUCTION
for sizes 1/8"-1/2"
Item No. Components Qty.
1
2
3
4
5
Body 1 St.St. 316
O-ring
Poppet 1 St.St. 316
Spring 1/3 psi
A
Spring 3 psi 1 St.St. 302
B
Spring 10 psi
C
Spring 25 psi 1 St.St. 302
D
End
Valve Body
Material
1 Fluorocarbon FKM
1 St.St. 302
1 St.St. 302
1 St.St. 316
GENERAL
The H-400 Series is a compact design for instrumentation panels
and systems, which provides an accurate operating point. H-400
valves are normally closed. When differential pressure between
the inlet and outlet is higher than the set pressure of the spring,
the loaded poppet will move backwards and will enable a free
passage of flow through the valve.
For vacuum applications please select H-400HP series.
MATERIALS OF CONSTRUCTION
for sizes 3/4"-1"
Item No. Components Qty.
1
2
3B
4
5
6
Body 1 St.St. 316
O-ring
Poppet 1 St.St. 316
Spring 1/3 psi
A
Spring 3 psi 1 St.St. 302
B
Spring 10 psi
C
Spring 25 psi 1 St.St. 302
D
End
Upper O-ring 1 Fluorocarbon FKM
Valve Body
Material
1 Fluorocarbon FKM
1 St.St. 302
1 St.St. 302
1 St.St. 316
VALVES & ACTUATORS
Sizes 1/8"-1/2"
1 1 2 3 54
1
Body
2
O-ring
3
Poppet
O-ring
Sizes 3/4"-1"
4
Spring
5
End
3B
Poppet
(3/4 -
1''
Upper O-ring
)
62 3 4 5
CHECK VALVES H400- SERIES
260
STANDARD CONFIGURATION DIMENSIONS
Valve Type
Inlet Outlet
H-400 1/8'' LET-LOK
H-400 1/4'' LET-LOK
H-400 6 MM LET-LOK
H-400 3/8'' LET-LOK
H-400 8 MM LET-LOK
H-400 10 MM LET-LOK
H-400 1/2'' LET-LOK
H-400 12 MM LET-LOK
H-400 3/4'' LET-LOK
H-400 1'' LET-LOK
Connection / Size
®
®
®
®
®
®
®
®
®
®
1/8'' LET-LOK
1/4'' LET-LOK
®
®
6 MM LET-LOK
3/8'' LET-LOK
®
8 MM LET-LOK
10MM LET-LOK
1/2'' LET-LOK
®
12 MM LET-LOK
3/4'' LET-LOK
1'' LET-LOK
®
®
Cv
0.1 56.0 2.20 25.3 1.00 15.88 5/8 11.11 7/16
0.47 60.5 2.38 25.0 0.98 15.88 5/8 14.28 9/16
®
0.47 60.5 2.38 25.0 0.98 15.88 5/8 14.00
1.47 63.5 2.50 24.9 0.98 17.46 11/16 17.46 11/16
®
®
1.47 63.3 2.49 24.9 0.98 17.5 11/16 16.00
1.68 64.0 2.52 24.9 0.98 17.46 11/16 19.00
1.68 77.0 3.03 32.6 1.28 23.8 15/16 22.23 7/8
®
1.68 77.0 3.03 32.8 1.28 23.8 15/16 22.00
4.48 88.5 3.48 44.4 1.75 28.6 1-1/8 28.60 1-1/8
4.48 120 4.72 67.2 2.65 34.9 1-3/8 38.10 1-1/2
A B C D
mm in mm in mm in mm in
H-410 1/8'' Female NPT 1/8'' Female NPT 0.1 44.0 1.73 25.4 1.00 15.88 5/8
H-410 1/4'' Female NPT 1/4'' Female NPT 0.47 52.5 2.07 28.0 1.10 19.05 3/4
H-410 3/8'' Female NPT 3/8'' Female NPT 1.47 51.5 2.03 34.1 1.34 22.23 7/8
H-410 1/2'' Female NPT 1/2'' Female NPT 1.68 76.5 3.01 43.4 1.71 28.6 1-1/8
H-410 3/4'' Female NPT 3/4'' Female NPT 4.48 86.0 3.39 56.0 2.20 34.9 1-3/8
H-410 1'' Female NPT 1'' Female NPT 4.48 107 4.21 73.0 2.87 41.28 1-5/8
H-480 1/8'' Male NPT 1/8'' Male NPT 0.1 44.3 1.74 24.9 0.98 15.88 5/8
H-480 1/4'' Male NPT 1/4'' Male NPT 0.47 55.9 2.20 25.0 0.98 19.05 3/4
H-480 3/8'' Male NPT 3/8'' Male NPT 1.47 53.1 2.09 24.9 0.98 17.46 11/16
H-480 1/2'' Male NPT 1/2'' Male NPT 1.68 70.4 2.77 32.6 1.28 23.8 15/16
H-480 1/4'' Male Face Seal 1/4'' Male Face Seal 0.47 56.4 2.22 24.9 0.98 15.88 5/8
H-480 1/2"Male Face Seal 1/2'' Male Face Seal 1.68 68.2 2.69 32.6 1.28 23.8 15/16
H-485 1/8''Male NPT 1/8'' Female NPT 0.1 44.3 1.74 25.4 1.0 15.88 5/8
H-485 1/4''Male NPT 1/4'' Female NPT 0.47 53.7 2.11 27.3 1.07 19.05 3/4
Dimensions are for reference only, and are subject to change.
VALVES & ACTUATORS
HAM-LET ADVANCED CONTROL TECHNOLOGY
261
GENERAL PURPOSE FIXED CRACKING PRESSURE CHECK VALVE H-400 SERIES
CRACKING PRESSURE
The differential pressure between the inlet and outlet,
at which an initial ow is passing through the valve.
RESEAL PRESSURE
The differential pressure between the outlet and inlet,
at which no ow is passing through the valve.
O-RINGS*
O-ring Material
Buna N -10 to 250 (-23 to 121)
EPDM -50 to 300 (-45 to 148)
Fluorocarbon FKM -10 to 375 (-23 to 190)
Peruor -15 to 500 (-26 to 260)
Polychloroprene (CR) -40 to 250 (-40 to 121)
*Different materials are available for special applications.
CRACKING AND RESEAL PRESSURE
Nominal
Cracking
Pressure
psi (bar) psi (bar) psi (bar)
1/3 (0.02) Up to 3 (0.2) Up to 6 (0.40) back pressure
1 (0.06) Up to 4 (0.27) Up to 6 (0.41) back pressure
5 (0.34) 3 to 9 (0.20 to 0.62) Up to 2 (0.13) back pressure
10 (0.68) 7 to 15 (0.48 to 1.0) 3 (0.2) or more inlet pressure
25 (1.7) 20 to 30 (1.3 to 2.0) 17 (1.1) or more inlet pressure
Temperature Rating
°F (°C)
BACK PRESSURE
Maximum allowable back pressure is rated to 1000 psi (69 bar) for 1/4,
200 psi (14 bar) for 3/8 to 1". For higher back pressure please select valve
from the H-400HP Series.
Cracking Pressure
Range
MAWP PRESSURE AT 21°C (70°F)
SIZE BRASS psi (bar) AISI 316 psi (bar)
1/8 ,1/4,
3/8, 1/2, 5/8, 6mm,
8mm,10mm,12mm
3/4, 1", 16mm,
20mm, 22 mm
3000 (207) 3000 (207)
1500 (103) 2000 (138)
Reseal Pressure
VALVES & ACTUATORS
PRESSURE - TEMPERATURE RATING FOR STANDARD CONFIGURATIONS
1/8 TO 1/2 INCH, 3MM TO 12 MM
Material 316St.St. Brass
Temperature F° (C°) Working Pressure, psi (bar)
-10 (-23) to 100 (37) 3000 (206) 3000 (206)
200 (93) 2575 (177) 2600 (179)
250 (121) 2450 (168) 2405 (165)
300 (148) 2325 (160) 375 (190) 2185 (150) -
Note: Ratings based on Fluorocarbon FKM O-ring.
CHECK VALVES H400- SERIES
262
3/4 TO 1 INCH, 18MM TO 25MM
Material 316St.St. Brass
Temperature F° (C°) Working Pressure, psi (bar)
-10 (-23) to 100 (37) 2000 (137) 1500 (103)
200 (93) 1715 (118) 1300 (89.5)
250 (121) 1630 (112) 1200 (82.6)
300 (148) 1545 (106) 375 (190) 1450 (99.9) -
CLEANING & PACKAGING
Every H-400 series Check valve is cleaned in accordance with
Standard Cleaning and Packaging (procedure 8184). Oxygen
Clean & Lubricant Free Cleaning and packaging, in accordance
with Special Cleaning and Packaging (procedure 8185), is
available as an option.
H-400 SERIES ORDERING INFORMATION
TESTING
The H-400 valve designs have been tested for Proof and Burst.
Every H-400 valve is factory tested for proper assembly, by
leakage detection at 1000 psig (68 bar) for 10 seconds.
Every H-400 valve is factory tested for functionality at the
relevant cracking pressure, 5 cycles each.
H-4
Valve Series
Valve Type
- LET-LOK® End
00
- Female End
10
- Female to Male End
15
- Male End
80
- Male to Female End
85
- Female to LET-LOK® End
90
- Male to LET-LOK® End
95
SPARE KITS
00
-
Material
- St.St. 316
SS
- Brass
B
End Connection
- LET-LOK® Tube Fitting
L
- NPT
N
- ISO Parallel
G
- ISO Tapered
R
- Face Seal Male Connector
GL
- ONE-LOK® Tube Fitting
HL
Other end connections are
available upon request.
- - - -
LSS 1/4 1/3
End Connection
Size
1/4 6 MM
3/8 8 MM
1/2 10 MM
3/4 12 MM
1 25 MM
Cracking Pressure
1/3 PSI
1 PSI
3 PSI
5
PSI
10
PSI
25
PSI
50
PSI
O-ring Material
BLANK
BU
EP
NE
KZ
PT*
VI - Fluorocarbon FKM is a standard
*PTFE seals are available up to 1/2"
valves only and require relatively
high back pressure to seal leaktight.
Treatment
BLANK - Standard Cleaning &
OC - Oxygen Clean
LF - Lubricant Free
OPTIONAL
- Fluorocarbon FKM
- Buna N
- EPDM
- Polychloroprene (CR)
- Peruor
- PTFE
Passivation
Series End Size Spring Kit* O-Ring Kit**
H-410 Female Ends
®
H-490 Female to Let-Lok
H-485 Male to Female
H-415 Female to Male
®
H-400 Let-Lok
H-480 Male Ends
H-495 Male to Let-Lok
Spring Kit includes Spring and lable
*
O-ring Kit includes O-ring and lable
**
1/8
1/4 , 3/8
1/2
3/4
1
1/8
¼,3/8
1/2
3/4
1/8, 1/4, 6mm
3/8 ,8mm, 10mm
1/2, 12mm
3/4
1
Z-400-SPK-1/4-X PSI
Z-400-SPK-3/8-X PSI
Z-410-SPK-1/2-X PSI
Z-410-SPK-3/4-X PSI
Z-410-SPK-1"-X PSI
Z-400-SPK-1/4-X PSI
Z-400-SPK-3/8-X PSI
Z-410-SPK-1/2-X PSI
Z-410-SPK-3/4-X PSI
Z-400-SPK-1/4-X PSI
Z-400-SPK-3/8-X PSI
Z-400-SPK-1/2-X PSI
Z-400-SPK-3/4-X PSI
Z-410-SPK-3/4-X PSI
X
Z-400-SK-1/4-
Z-400-SK-3/8Z-410-SK-1/2Z-410-SK-3/4-
Z-410-SK-1"Z-400-SK-1/4Z-400-SK-3/8Z-410-SK-1/2Z-410-SK-3/4Z-400-SK-1/4Z-400-SK-3/8Z-400-SK-1/2Z-400-SK-3/4Z-410-SK-3/4-
=spring type per "How To Order"
=O-Ring material per "How To Order"
HAM-LET Check Valves should never be used as safety relief devices. These valves are not designed for pressure release.
VALVES & ACTUATORS
HAM-LET ADVANCED CONTROL TECHNOLOGY
263
HIGH PERFORMANCE FIXED CRACKING PRESSURE CHECK VALVE
H-400HP SERIES
FEATURES
n
316 St.St. construction
n
High Pressure Characteristics up to 6000 psi (413 bar)
n
Small Size
n
Variable Fixed Cracking Pressure
n
HAM-LET LET-LOK®, Male & Female NPT, and HTC
Face Seal Bead Ends
n
Suitable for vacuum applications
n
ECE R110 approved for the CNG/NGV as an option
MATERIALS OF CONSTRUCTION
No. Components Qty. Standard CNG*
Body 1 St.St. ASTM A-276 St.St. ASTM A-276
1
Bonded Poppet
2
Pusher 1 St.St. ASTM A-276 St.St. ASTM A-276
3
Spring
4
O-ring 1 Fluorocarbon FKM
5
Back Up
6
End 1 St.St. ASTM A-276 St.St. ASTM A-276
7
*CNG: MAWP 3770 psi (260 bar) Temprature range: -40°C (-40°F) - 120°C (248°F)
Pressure estimates may be limited by the end connections
(See Table of dimensions on the next page).
Fluorocarbon FKM
1
1 St.St. 304 St.St. 304
1 Fluorocarbon FKM Fluorocarbon FKM
Bonded on
316 St.St.
Low temprature
Fluorocarbon FKM Bonded
on 316 St.St.
Low temprature
Fluorocarbon FKM
5
GENERAL
The H-400HP Series is a compact, robust and heavy duty design
for high-pressure (up to 6000 psi) instrumentation panels and
systems, which provides an accurate operating point. H-400HP
valves are normally closed. When the differential pressure between
the inlet and the outlet is higher than the set pressure of the spring,
the loaded poppet will move backwards and provide a free
passage of ow through the valve.
H-400HP CNG is specially designed for the CNG/NGV
PRESSURE TEMPERATURE RATING*
Material Size
Temperature F° (C°) Working Pressure, psi (bar)
-10 (-23) to 100 (37) 6000 (413) 5000 (344)
200 (93)
250 (121) 4910 (338) 4080 (281)
300 (148)
400 (204) 4280 (295) 3560 (245)
1/8, 1/4, 3/8, 1/2'',
6,8,10,12mm
5160 (355) 4290 (296)
4660 (321) 3875 (267)
6
316SS
22&25mm , 3/4&1''
VALVES & ACTUATORS
CRACKING AND RESEAL PRESSURE
Nominal
Cracking
Pressure
psi (bar) psi (bar) psi (bar)
1/3 (0.02) Up to 3 (0.2) Up to 6 (0.40) back pressure
1 (0.06)
5 (0.34) 3 to 9 (0.20 to 0.62) Up to 2 (0.13) back pressure
10 (0.68)
25 (1.7) 20 to 30 (1.3 to 2.0) 17 (1.1) or more inlet pressure
Cracking Pressure
Range
Up to 4 (0.27) Up to 4 (0.27) back pressure
7 to 15 (0.48 to 1.0) 3 (0.2) or more inlet pressure
Reseal Pressure
CRACKING PRESSURE
The differential pressure between the inlet and outlet, at which
an initial ow is passing through the valve.
7
4
3
2
1
TECHNICAL DATA
Connection
Sizes
1/8, 1/4, 6mm 0.67 1/3, 1, 5, 10 & 25
3/8, 1/2, 8-12 mm
3/4, 1, 22mm, 25mm
Max. Flow
Coefcient
(Cv)
1.80 (0.02, 0.06, 0.34,
4.7 0.68, and 7.1) 5000 (344)
Nominal
Cracking
Pressure
psi (bar)
RESEAL PRESSURE
The differential pressure between the outlet and inlet, at
which no ow is passing through the valve.
Back Pressure
at 70°F (20°C)
psi (bar)
6000 (413)
CHECK VALVES H400- SERIES
264
CLEANING & PACKAGING
Every H-400HP series Check valve is cleaned in accordance
with Standard Cleaning and Packaging (procedure 8184).
Oxygen Clean & Lubricant Free Cleaning and packaging, in
accordance with Special Cleaning and Packaging (procedure
8185), is available as an option.
STANDARD CONFIGURATION DIMENSIONS
Valve Type Inlet Outlet
H-400HP
H-410HP
H-480HP
1/8" LET-LOK
1/4" LET-LOK
3/8" LET-LOK
1/2" LET-LOK
3/4" LET-LOK
1" LET-LOK
6MM LET-LOK
8MM LET-LOK
12MM LET-LOK
22MM LET-LOK
25MM LET-LOK
®
®
®
®
®
®
®
®
®
®
®
®
1/4" Female NPT/BSPT 1/4" Female NPT/BSPT 6000 (413) 54.1 2.13 11/16
3/8" Female NPT/BSPT 3/8" Female NPT/BSPT
1/2" Female NPT/BSPT 1/2" Female NPT/BSPT 4600 (316) 83.6 3.03 1
3/4" Female NPT/BSPT 3/4" Female NPT/BSPT
1" Female NPT/BSPT 1" Female NPT/BSPT 4100 (282) 97.3 3.83
1/4" Female BSPP 1/4" Female BSPP
1/2" Female BSPP 1/2" Female BSPP 4600 (316) 83.5 3.29 1
3/4" Female BSPP 3/4" Female BSPP
1" Female BSPP 1" Female BSPP 4100 (282) 97.4 3.83
1/2" Female SAE/MS 1/2" Female SAE/MS
1/8" Male NPT/BSPT 1/8" Male NPT/BSPT
1/4" Male NPT/BSPT 1/4" Male NPT/BSPT
3/8" Male NPT/BSPT 3/8" Male NPT/BSPT
1/2" Male NPT/BSPT 1/2" Male NPT/BSPT 6000 (413) 69.2 2.72
3/4" Male NPT/BSPT 3/4" Male NPT/BSPT
1" Male NPT/BSPT 1" Male NPT/BSPT 93.3 3.67
1/4" Male BSPP 1/4" Male BSPP
1/2" Male BSPP 1/2" Male BSPP 69.2 2.72 1
3/4" Male BSPP 3/4" Male BSPP
1" Male BSPP 1" Male BSPP 93.3 3.67
1/2" Male SAE/MS 1/2" Male SAE/MS
1/4" Male HO Fitting 1/4" Male HO Fitting
1/2" Male HO Fitting 1/2" Male HO Fitting 59.8 2.35 1
3/4" Male HO Fitting 3/4" Male HO Fitting
1" Male HO Fitting 1" Male HO Fitting 73.6 2.90
1/4" Male Face Seal 1/4" Male Face Seal
1/2" Male Face Seal 1/2" Male Face Seal 3500 (241) 69.2 2.72 1
3/4" Male Face Seal 3/4" Male Face Seal
1/8" LET-LOK
1/4" LET-LOK
3/8" LET-LOK
1/2" LET-LOK
3/4" LET-LOK
1" LET-LOK
®
6MM LET-LOK
8MM LET-LOK
10MM LET-LOK
12MM LET-LOK
22MM LET-LOK
25MM LET-LOK
Pressure Ratings at
100F° / 37C° psig (bar)
®
®
®
®
®
®
®
®
®
®
®
6000 (413)
5000 (344) 89.5 3.52
4700 (323) 98.5 3.88
6000 (413)
5000 (344) 88.5 3.48
4700 (323) 98.5 3.88
Dimensions
A B
mm in in
57.8 2.28
61.8 2.43
70.0 2.76
75.3 2.96
61.8 2.43 11/16
68.5 2.70
71.1 2.80
75.3 2.96
11/16
1
5
1
110MM LET-LOK
5
1
/8
/8
5000 (344) 64.8 2.55 1
4300 (296) 90.1 3.23
5
/8
1
6000 (413) 58.0 2.28 11/16
4300 (296) 90.1 3.55
5
1
/8
4600 (316) 69.5 2.74 1
6000 (413) 45.6 1.80
6000 (413)
5000 (344)
6000 (413)
5000 (344)
55.0 2.17
60.0 2.36
83.5 3.29
55.0 2.17 3/4
85.2 3.35
11/16
1
5
1
5
1
VALVES & ACTUATORS
/8
/8
63.0 2.48 1
6000 (413)
5000 (344)
50.4 1.98 11/16
73.6 2.90
5
1
/8
6000 (413) 58.0 2.28 11/16
3000 (206) 96.1 3.78 1
5
/8
Dimensions are for reference only and are subject to change.
HAM-LET ADVANCED CONTROL TECHNOLOGY
265
HIGH PERFORMANCE FIXED CRACKING PRESSURE CHECK VALVE
H-400HP SERIES
O-RINGS
Different materials are available for special applications.
O-ring Material
Temperature Rating
°F (°C)
Buna N -10 to 250 (-23 to 121)
EPDM -50 to 300 (-45 to 148)
Fluorocarbon FKM -10 to 400 (-23 to 204)
Polychloroprene (CR) -40 to 250 (-40 to 121)
H-400HP SERIES ORDERING INFORMATION
H-4
Valve Series
00HP
- -
Material
- St.St.316
SS
TESTING
The H-400HP valve designs have been tested for Proof and Burst.
Every H-400HP valve is factory tested for proper assembly, by
leakage detection at 1000 psig (68 bar) for 10 seconds.
Every H-400HP valve is factory tested for functionality at the
relevant cracking pressure, 5 cycles each.
-
LSS 1/4 1/3
End Connection
Size
1/8 6 MM
1/4 8 MM
3/8 10 MM
1/2
3/4 22 MM
1 25 MM
-
OPTIONAL
Approval
BLANK
-
Standard
CNG
-
ECE R110
Treatment
BLANK - Standard Cleaning &
OC - Oxygen Clean
LF - Lubricant Free
Passivation
VALVES & ACTUATORS
Valve Type
- LET-LOK® End
00HP
- Female End
10HP
- Female to Male End
15HP
- Male End
80HP
- Male to Female End
85HP
- Female to LET-LOK® End
90HP
- Male to LET-LOK® End
95HP
Note: Check valves are designed and suitable for direct ow control only. These valves are not meant for pressure release.
CHECK VALVES H400- SERIES
266
End Connection Type
- LET-LOK® Tube Fitting
L
- NPT
N
- ISO Tapered
R
- Metal Face Seal Male
GL
- O-ring Face Seal Male
HO
HL
OB
- ONE-LOK
- SAE/MS
®
Cracking Pressure
1/3 PSI
1 PSI
3 PSI
5 PSI
10 PSI
25 PSI
Seal Material
BLANK
BU
EP
NE
Fluorocarbon FKM Seals are standard.
-
- Buna N
- EPDM
- Polychloroprene (CR)
ORDERING INFORMATION SPARE-PARTS KIT / REPAIR KIT
SEAL KIT
The kit includes O-ring , Back-up & Bonded Poppet and Label.
Z - 400HP - SK - 1/4 - VI
Seal
Material
VI
- Fluorocarbon FKM
BU
- Buna N
NE
- Polychloroprene (CR)
EP
- EPDM
SPRING KIT
Body Designator
per End Connection
For 1/8, 1/4, 6MM
1/4
For 3/8, 1/2, 10MM, 12MM
1/2
For 3/4, 1", 25MM
3/4
The kit includes Spring & Label.
Z - 400HP - SPK - 1/4 - 1/3
Body Designator
per End Connection
For 1/8, 1/4, 6MM
1/4
For 3/8, 1/2, 10MM, 12MM
1/2
For 3/4, 1", 25MM
3/4
Cracking Pressure
1/3 PSI
1 PSI
3 PSI
5 PSI
10 PSI
25 PSI
VALVES & ACTUATORS
Warning!
The system designer and user have the sole responsibility for selecting products suitable for their special
application requirements, ensuring their safe and trouble-free installation, operation, and maintenance.
Application details, material compatibility and product ratings should all be considered for each selected
product. Improper selection, installation or use of products can cause property damage or personal injury.
HAM-LET Check Valves should never be used as safety relief devices.
HAM-LET ADVANCED CONTROL TECHNOLOGY
267
COMPACT ONE PIECE FIXED CRACKING PRESSURE CHECK VALVE
GENERAL
The H-400OP Series is a compact one-piece design for moderate
pressure (up to 3000 psi) instrumentation panels and systems,
which provides a xed operating point. H-400OP valves are
normally closed. When the differential pressure between the inlet
and the outlet is higher than the set pressure of the spring, the
loaded poppet will move backwards and provide a free passage
for ow through the valve.
For vacuum applications, please select the H-400HP series.
MATERIALS OF CONSTRUCTION
Item
Components
No.
1 Lock Screw 1 St.St. 304 Brass ASTM B-16
O-ring Holder
2
3 O-ring 1 Fluorocarbon FKM
Poppet
4
5 Spring 1 St.St. 302
Body
6
Qty.
1 St.St. ASTM A-276
1
St.St. ASTM A-276
1
Valve Body Material
316 St.St. Brass
St.St. ASTM A-276
Brass ASTM B-16
H-400OP SERIES
Ordering
Information
VALVES & ACTUATORS
3
2
1
O-RINGS
Different materials are available for special applications.
O-ring Material
Buna N -10 to 250 (-23 to 121)
Ethylene Propylene (EPDM) -50 to 300 (-45 to 148)
Fluorocarbon FKM -10 to 375 (-23 to 190)
Peruor -15 to 500 (-26 to 260)
Polychloroprene (CR) -40 to 250 (-40 to 121)
Temperature Rating
°F (°C)
5
4
TECHNICAL DATA
Connection
Sizes
1/4 0.35 1/3, 1,10 & 25
1/2 1.20 (0.02, 0.06, 0.68, and 7.1)
Max. Flow
Coefcient
(Cv)
Nominal Cracking
Pressure
psi (bar)
6
Back Pressure
at 70°F (20°C)
psi (bar)
3000 (207)
CHECK VALVES H400- SERIES
268
CLEANING & PACKAGING
Every H-400OP series Check valve is cleaned in accordance with
Standard Cleaning and Packaging (procedure 8184). Oxygen
Clean & Lubricant Free Cleaning and packaging, in accordance
with Special Cleaning and Packaging (procedure 8185), is
available as an option.
STANDARD CONFIGURATION DIMENSIONS
End Connection
Inlet / Outlet
Female NPT
Male NPT
Female / Male NPT
Male /
Female NPT
Female BSPT
Male BSPT 1/2 41.0 1.61 9/16
Dimensions are for reference only and are subject to change.
Size
1/4 61.0 2.4 3/4
1/2 94.0 3.7 1
1/4 41.0 1.61 9/16
1/2 58.0 2.28 7/8
1/4 58.0 2.28 3/4
1/4 44.5 1.75 3/4
1/2 72.0 2.83 1
1/4 61.0 2.54 3/4
Dimensions
A B
mm in in
1
/16
1
/16
TESTING
The H-400OP valve designs have been tested for Proof and Burst.
Every H-400OP valve is factory tested for proper assembly, by
leakage detection at 100 psig (6.8bar) for 10 seconds.
Every H-400OP valve is factory tested for functionality at the
relevant cracking pressure, 5 cycles each.
PRESSURE TEMPERATURE RATING
Material
Temperature F° (C°) Working Pressure, psi (bar)
-10 (-23) to 100 (37) 3000 (206) 3000 (206)
200 (93) 2575 (177) 2600 (179)
250 (121) 2450 (168) 2405 (165)
300 (148) 2325 (160) 375 (190) 2185 (150) -
CRACKING AND RESEAL PRESSURE
Nominal
Cracking
Pressure
psi (bar) psi (bar) psi (bar)
1/3 (0.02) Up to 3 (0.02) 6 to 20 (0.41 to 1.3) back pressure
1 (0.06) Up to 4 (0.27) 5 to 20 (0.34 to 1.3) back pressure
10 (0.68) 7 to 13 (0.48 to 0.89) 3 to 10 (0.2 to 0.68) back pressure
25 (1.7) 21 to 29 (1.4 to 1.9) 5 (0.34) or more inlet pressure
Cracking
Pressure
Range
316 St.St. Brass
Reseal Pressure
CRACKING PRESSURE
The differential pressure between the inlet and outlet, at which
an initial ow is passing through the valve.
RESEAL PRESSURE
The differential pressure between the outlet and inlet, at which
no ow is passing through the valve.
VALVES & ACTUATORS
HAM-LET ADVANCED CONTROL TECHNOLOGY
269
COMPACT ONE PIECE FIXED CRACKING PRESSURE CHECK VALVE
H-400OP SERIES ORDERING INFORMATION
H-400OP SERIES
OPTIONAL
VALVES & ACTUATORS
H-4
Valve Series
Valve Type
- Female End
10
- Male End
80
- Male to Female
85
00OP
-
Material
- St.St.316
SS
- Brass
B
End Connection
- NPT
N
- ISO Tapered
R
-
NSS 1/4 1/3
-
End Connection Size
Cracking Pressure
1/3 PSI
1 PSI
5 PSI
10 PSI
25 PSI
-
1/4
1/2
Seal Material
BLANK
BU
EP
NE
KZ
Note: Check valves are designed and suitable for direct ow control only. These valves are not meant
for pressure release.
ORDERING INFORMATION SPARE KITS
SEAL KIT SPRING KIT
The kit includes O-Ring and label
Z - 400OP - SK - 1/4 - VI
The kit includes Spring & label
Z - 400OP - SPK - 1/4 - 1/3
Passivation
Seals are standard
-
-
Treatment
BLANK - Standard Cleaning &
OC - Oxygen Clean
LF - Lubricant Free
Fluorocarbon FKM
-
- Buna N
- EPDM
- Polychloroprene (CR)
- Peruor
Body Designator
per End Connection
1/4
1/2
Warning!
The system designer and user have the sole responsibility for selecting products suitable for their special
application requirements, ensuring their safe and trouble-free installation, operation, and maintenance.
Application details, material compatibility and product ratings should all be considered for each selected
product. Improper selection, installation or use of products can cause property damage or personal injury.
Seal Material
- Fluorocarbon FKM
VI
- Buna N
BU
- EPDM
EP
- Polychloroprene (CR)
NE
- Peruor
KZ
*Dimensions are for reference only, and are subject to change
CHECK VALVES H400- SERIES
270
Body Designator
per End Connection
1/4
1/2
Cracking Pressure
1/3 PSI
1 PSI
5
PSI
10 PSI
25 PSI
Springs for other cracking
pressures are available upon
request.
ONE PIECE ADJUSTABLE CRACKING PRESSURE CHECK VALVE
H-400OPA SERIES
FEATURES
n
One-piece Body
n
316 St.St. or Brass Construction
n
Variable Adjustable Cracking Pressure Ranges
n
Pressure Characteristics: up to 3000 psi
n
HAM-LET Male & Female NPT, Male BSPT
MATERIALS OF CONSTRUCTION
Item No. Components Qty.
Inlet Lock Screw 1 St.St. 304
1
O-ring Holder
2
O-ring 1 Fluorocarbon FKM
3
Poppet
4
Body 1
5
Spring
6
Adjusting Screw 1 St.St. 304
7
Lock Screw
8
1
1
1 St.St. 302
1 St.St. 304
316 St.St. Brass
St.St. ASTM
St.St. ASTM A-276
GENERAL
The H-400OPA Series is a compact one-piece design for moderate-pressure up
to 3000 psi (206 bar) instrumentation panels and systems, which provides an
accurate and adjustable operating point. H-400OPA valves are normally closed.
When the differential pressure between the inlet and the outlet is higher than the
set pressure of the spring, the loaded poppet will move backwards and provide a
free passage for ow through the valve.
For vacuum applications, please select the H-400HP series.
Valve Body Material
Brass ASTM B-16
A-276 Brass ASTM B-16
St.St. ASTM A-276
Brass ASTM B-16
4
22
2
1
PRESSURE TEMPERATURE RATING
Material Size 316St.St. Brass
Temperature F° (C°) Working Pressure, psig (bar)
-10 (-23) to 100 (37) 3000 (206) 3000 (206)
200 (93) 2575 (177) 2600 (179)
250 (121) 2450 (168) 2405 (165)
300 (148) 2325 (160) 375 (190) 2185 (150) -
6
5
O-RINGS
Different materials are available for special applications.
O-ring Material
Buna N -10 to 250 (-23 to 121)
EPDM -50 to 300 (-45 to 148)
Fluorocarbon FKM -10 to 375 (-23 to 190)
Peruor -15 to 500 (-26 to 260)
Polychloroprene (CR) -40 to 250 (-40 to 121)
Temperature Rating
°F (°C)
8
7
VALVES & ACTUATORS
HAM-LET ADVANCED CONTROL TECHNOLOGY
271
ONE PIECE ADJUSTABLE CRACKING PRESSURE CHECK VALVE
H-400OPA SERIES
CLEANING & PACKAGING
HAM-LET H-400OPA valves are treated with HAM-LET Passivation,
Cleaning and Packaging (Procedure 8075).
HAM-LET H-400OPA valves with face-seal end connections are
treated with HAM-LET Oxygen Cleaning and Packaging (Procedure
8055). Oxygen Cleaning and Packaging for other end connections
are available as an option.
STANDARD CONFIGURATION DIMENSIONS
End Connection
Female NPT 1/4 75.5 2.97 3/4
Male NPT
Male BSPT
Dimensions are for reference only and are subject to change.
TECHNICAL DATA
End Connection Size
1/4 0.35
1/2 1.20
Size
Inlet / Outlet
1/4 41 1.61 9/16
1/2 65 2.55 7/8
1/4 41 1.61 9/16
1/2 65 2.55 7/8
Max. FlowCoefcient
( Cv )
Dimensions
A B
mm in in
Nominal Cracking Pressure
3 to 50 (0.2 to 3.4)
50 to 150 (3.4 to 10.3)
150 to 350 (10.3 to 24.1)
350 to 600 (24.1 to 41.3)
CLEANING & PACKAGING
Every H-400OPA series Check valve is cleaned in accordance with
Standard Cleaning and Packaging (procedure 8184). Oxygen
Clean & Lubricant Free Cleaning and packaging, in accordance
with Special Cleaning and Packaging (procedure 8185), is
available as an option.
A
B
psi (bar)
Back Pressure at 70°F (20°C)
psi (bar)
3000 (207)
VALVES & ACTUATORS
CRACKING AND RESEAL PRESSURE
Cracking Pressure (Bar)
0 4 8 12 16 20 24 28 32 36 40
650
600
550
500
450
400
350
300
250
200
150
100
Reseal Pressure (psi)
50
0
-50
0 50 100 150 200 250 300 350 400 450 500 550 600
Cracking Pressure (psi)
40
36
32
28
24
20
16
12
Reseal Pressure (Bar)
8
4
0
CHECK VALVES H400- SERIES
272
H-400OPA SERIES ORDERING INFORMATION
OPTIONAL
H-4
Valve Series End Connection Size
Valve Type
- Female End
10
- Male End
80
10OPA
- - - --
Material
- St.St. 316
SS
- Brass
B
End Connection
- NPT
N
- ISO Tapered
R
NSS 1/4 3
1/4
1/2
Cracking Pressure
Designator Values (psi)
3 3-50
50 50-150
150 150-350
350 350-600
C* 3-600
Note: Check valves are designed and suitable for direct ow
control only. These valves are not meant for pressure release.
ORDERING INFORMATION SPARE KITS
SEAL KIT SPRING KIT
The kit includes O-Ring & label
Z - 400OPA - SK - 1/4 - VI
*Factory Calibration
Designator
3-600 Psi
Example: H-480OPA-SS-N-1/4-C100
Will be Calibrated to 100 Psi
The kit includes Spring & label.
Z - 400OPA - SPK - 1/4 - 3
--
Treatment
BLANK - Standard Cleaning &
OC - Oxygen Clean
LF - Lubricant Free
O-ring Material
BLANK
BU
EP
NE
KZ
Passivation
- Fluorocarbon FKM
Seals are standard
- Buna N
- EPDM
- Polychloroprene (CR)
- Peruor
VALVES & ACTUATORS
Body Designator
per End Connection
1/4
1/2
Warning!
The system designer and user have the sole responsibility for selecting products suitable for their special
application requirements, ensuring their safe and trouble-free installation, operation, and maintenance.
Application details, material compatibility and product ratings should all be considered for each selected
product. Improper selection, installation or use of products can cause property damage or personal injury.
Seal
Material
VI
- Fluorocarbon FKM
BU
- Buna N
NE
- Polychloroprene (CR)
KZ
- Peruor
EP
- EPDM
Body Designator
per End Connection
HAM-LET ADVANCED CONTROL TECHNOLOGY
1/4
1/2
Cracking Pressure
Designator Values (psi)
3 3-50
50 50-150
150 150-350
350 350-600
273
ADJUSTABLE CRACKING PRESSURE CHECK VALVE
H-400A SERIES
FEATURES
n
316 St.St. or Brass Construction
n
Variable Adjustable Cracking Pressure Ranges
n
Pressure Characteristics: up to 3000 psi
n
HAM-LET LET-LOK® Fittings, Male NPT,
and HTC® Face Seal Bead
MATERIALS OF CONSTRUCTION
Item
No.
10
Components Qty.
Gasket 1 316 St.St. Silver plated Al-6061 Silver plated
1
O-ring Holder
2
O-ring 1 Fluorocarbon FKM
3
Poppet
4
Body 1 St.St. ASTM A-276 Brass ASTM B-16
5
Spring
6
Adjusting Screw 1 St.St. 304
7
Lock Screw
8
Gasket 1 316 St.St. Silver plated Al-6061 Silver plated
9
End
1 St.St. ASTM A-276 Brass ASTM B-16
1 St.St. ASTM A-276
1 St.St. 302
1 St.St. 304
2 St.St. ASTM A-276 Brass ASTM B-16
316 St.St. Brass
GENERAL
The H-400A Series is a compact design for moderate-pressure (up to 3000 psi)
instrumentation panels and systems, which provides an accurate and adjustable
operating point. H-400A valves are normally closed. When the differential
pressure between the inlet and the outlet is higher than the set pressure of the
spring, the loaded poppet will move backwards and provide a free passage for
ow through the valve.
Valve Body Material
PRESSURE - TEMPERATURE RATING
FOR STANDARD CONFIGURATIONS
Material Size 316St.St. Brass
Temperature F° (C°) Working Pressure, psi (bar)
-10 (-23) to 100 (37) 3000 (206) 3000 (206)
200 (93) 2575 (177) 2600 (179)
250 (121) 2450 (168) 2405 (165)
300 (148) 2325 (160) 375 (190) 2185 (150) -
10
VALVES & ACTUATORS
9
8
7
6
5
4
3
2
1
Adjustment and Locking
Mechanism - facilitates
adjustment and locking at the
required cracking pressure by
spring loading
CHECK VALVES H400- SERIES
274
CLEANING & PACKAGING
Every H-400OA series Check valve is cleaned in accordance with
Standard Cleaning and Packaging (procedure 8184). Oxygen
Clean & Lubricant Free Cleaning and packaging, in accordance
with Special Cleaning and Packaging (procedure 8185), is
available as an option.
DIMENSIONS
Intlet Outlet
1
/4 Let-Lok
6MM Let-Lok
8MM Let-Lok
® 1
®
®
/4 Let-Lok
6MM Let-Lok
8MM Let-Lok
1/4 Male NPT 1/4 Let-Lok
®
®
®
®
A BC
mm in Hex Hex
82.5 3.25 9/16 5/8
82.5 3.25 14MM 5/8
84.4 3.32 16MM 5/8
79.3 3.12 9/16 5/8
1/4 Male Face Seal 1/4 Male Face Seal 78.4 3.09 - 5/8
1/4 Male NPT 1/4 Male NPT 75.7 2.98 - 5/8
Dimensions are for reference only and are subject to change.
TECHNICAL DATA
Connection
Size
Max. Flow
Coefcient
(Cv)
Nominal Cracking
Pressure
psi (bar)
Back Pressure
at 70°F (20°C)
psi (bar)
3 to 50 (0.2 to 3.4)
1/4, 6mm, 8mm 0.37
50 to 150 (3.4 to 10.3)
150 to 350 (10.3 to 24.1)
3000 (413)
350 to 600 (24.1 to 41.3)
CRACKING AND RESEAL PRESSURE
Cracking Pressure (Bar)
0 4 8 12 16 20 24 28 32 36 40
650
600
550
500
450
400
350
300
250
200
150
100
Reseal Pressure (psi)
50
0
-50
0 50 100 150 200 250 300 350 400 450 500 550 600
Cracking Pressure (psi)
A
(HEX)
C
B
(HEX)
O-RINGS
Different materials are available for special applications.
O-ring Material
Temperature Rating
°F (°C)
Buna N -10 to 250 (-23 to 121)
EPDM -50 to 300 (-45 to 148)
Fluorocarbon FKM -10 to 375 (-23 to 190)
Peruor -15 to 500 (-26 to 260)
Polychloroprene (CR) -40 to 250 (-40 to 121)
40
36
32
28
24
20
16
12
8
Reseal Pressure (Bar)
4
0
VALVES & ACTUATORS
HAM-LET ADVANCED CONTROL TECHNOLOGY
275
ADJUSTABLE CRACKING PRESSURE CHECK VALVE
TESTING
The H-400A valve designs have been tested for Proof and Burst.
Every H-400A valve is factory tested for proper assembly by leak
detection at 1000 psig (68 bar) for 10 seconds.
Every H-400A valve is factory tested for functionality at the relevant
cracking pressure, 5 cycles each.
H-400A SERIES ORDERING INFORMATION
H-400A SERIES
OPTIONAL
VALVES & ACTUATORS
H-4
Valve Series End Connection Size
Valve Type
- LET-LOK® End
00A
- Male End
80A
For other valve types please
consult HAM-LET.
Note: Check valves are designed and suitable for direct ow
control only. These valves are not meant for pressure release.
00A
ORDERING INFORMATION SPARE KITS
SEAL KIT
The kit includes O-ring & Label .
Z - 400A - SK - 1/4 - VI
-
Material
- St.St.316
SS
- Brass
B
End Connection
- LET-LOK® Tube Fitting
L
- NPT
N
- ISO Tapered
R
- Face Seal Male Connector
GL
- ONE-LOK
HL
Other end connections are
available upon request.
®
- - -
LSS 1/4 50
1/4
6 MM
8 MM
Cracking Pressure
Designator Values (psi)
3 3-50
50 50-150
150 150-350
350 350-600
C* 3-600
*Factory Calibration
Designator
3-600 Psi
Example: H-400A-SS-L-1/4-C60
Will be Calibrated to 60 Psi
SPRING KIT
The kit includes Spring & Label.
Z - 400A - SPK - 1/4 - 3
-
Treatment
BLANK - Standard Cleaning &
OC - Oxygen Clean
LF - Lubricant Free
O-ring Material
BLANK
BU
EP
NE
KZ
--
Passivation
- Fluorocarbon FKM
Seals are standard
- Buna N
- EPDM
- Polychloroprene (CR)
- Peruor
Body Designator
per End Connection
For all dimensions
1/4
Warning!
The system designer and user have the sole responsibility for selecting products suitable for their special
application requirements, ensuring their safe and trouble-free installation, operation, and maintenance.
Application details, material compatibility and product ratings should all be considered for each selected
product. Improper selection, installation or use of products can cause property damage or personal injury.
Seal Material
- Fluorocarbon FKM
VI
- EPDM
EP
- Polychloroprene (CR)
NE
- Peruor
KZ
- Buna N
BU
Body Designator
per End Connection
For all dimensions
1/4
HAM-LET Check Valves should never be used as safety relief devices.
CHECK VALVES H400- SERIES
276
Cracking Pressure
Designator Values (psi)
3 3-50
50 50-150
150 150-350
350 350-600
H-400,
Rev 08, January 2014
Loading...