Ham-Let H-400 SERIES Data Sheet

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)

Peruor -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)

- Peruor

- 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

Coefcient

(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