Wheel Operated Valves,
Top and Side Outlet in
O-Ring Seal Design
Product Features
Reliable, precision
machined and low torque
design in general
requiring no maintenance
throughout service life.
Meets IS:3224:2002 and
certified by CCOE for
supply in India under
BIS Inspection.
Meets EN ISO 10297:2006
and certified in BAM
Berlin for Maximum
working pressure up to
300 Bar for compressed
gases and Test pressure
of 360 Bar for
liquefiable gases.
Can
be supplied with '' mark in requirement
of European Directive
1999/36/EC.
Design provides O-ring
backed by high durometer
elastomer back up ring
for external tightness.
Thrust washer between
the top spindle collar
and gland nut further
protects the O-ring at
high pressure. Gland nut
abutts at the inner end
with the valve body
ensuring permanent metal
to metal seal and
reliable external
tightness.
Valve design
additionally tested for
seat lift off (endurance
test in reverse
direction) and salt
spray test as per ISO
9227:2006.
Spindles machined from
naval brass for
toughness and wear
resistance. Bottom
spindle threads, thrust
washer, 'O' ring and
back up ring are
lubricated by compatible
lubricant to eliminate
seizing and galling.
Valve body withstands
impact strength of 400 J
making it suitable for
cylinder package mass of
111 kgs if used without
valve guard.
Valves may be provided
with Pressure relief
device (PRD), primarily
CG-1 type safety disc as
per customer
requirement.
Flow coefficient Cv =
0.35.
CWH-10/O Test
Report to EN ISO
10297:2006
CWV-10/O Test
Report to EN ISO
10297:2006
CWH-10/O &
CWV-10/O Test
Certificate to
Module B of TPED
1999/36/EC
Side Outlet Valves
without PRD -
Series : CWH-10/O
Side Outlet Valves
with PRD -
Series : CWH-10/O
Top Outlet Valves -
Series : CWV-10/O
Material of Construction
Item
No.
Description
Materials
01.
Body - Forged
High Tensile Brass
02.
Bottom Spindle
Naval Brass with
Nylon 66 Soft
Seating
03.
Top Spindle
Naval Brass
04.
Thrust Washer
Nylon 66
05.
Gland Nut
Free Cutting Brass
06.
Backup Ring
EPDM
07.
'O' Ring
08.
Hand Wheel
30% Glass Filled
Nylon 6/ Cast
Aluminium
09.
Wheel Nut
Free Cutting Brass
10.
Wheel Washer
11.
Wheel Cover
(Optional)
Nylon
12.
Wheel Cross Plate
(For Plastic Wheel
only)
Brass
13.*
Burst Disc
Nickel 201
14.*
Burst Disc Washer
Copper
15.*
Retainer Plug
Free Cutting Brass
*
If Provided
Torque Values
Gland Nut Installation
60-70 Nm
Spindle (Under full service pressure with Outlet capped)
2-3 Nm
Safety disc retainer (If provided)
35 Nm
Service Chart and
Technical Details
Gas
Service
Maximum Working
pressure of
cylinder - Bar
Outlet Connection
IS 3224:2002
CGA V-1-2005
BS 341-3:2002
(Up to 250 Bar)
DIN 477-1:1990
(Up to 300 Bar)
No.
Thread
No.
Thread
No.
Thread
No.
Thread
Compressed Gases
Oxygen
/ Medical
Oxygen
300
3
G 5/8
Internal
540
(Upto 3000 psig)
0.903-14
NGO-RH-EXT
3
G 5/8
Internal
9
G 3/4
(External)
Hydrogen
2
G 5/8-LH
Internal
350
(Upto 3000 psig)
0.825-14
NGO-LH-EXT
4
G 5/8 - LH
Internal
1
W 21.80x1/14
LH (External)
Nitrogen
20
G 3/4 A
(External)
580
(Upto 3000 psig)
0.965-14
NGO-RH-INT
3
G 5/8
Internal
10
W 24.32x1/14
(External)
Argon
/ Helium
Krypton / Xenon
Neon
6
W 21.80x1/14
(External)
Air
19
G 7/8 A
(External)
346
(Upto 3000 psig)
0.825-14
NGO-RH-EXT
13
G 5/8
Internal
Gas
Service
Maximum test
pressure of
cylinder - Bar
Outlet Connection
IS 3224:2002
CGA V-1-2005
BS 341-3:2002
(Up to 250 Bar)
DIN 477-1:1990
(Up to 300 Bar)
No.
Thread
No.
Thread
No.
Thread
No.
Thread
Liquefied Gases
Nitrous Oxide
250
12
Ext - W
17.46 x 1.27
326
(Upto 3000 psig)
0.825-14
NGO-RH-EXT
13
11/16" - 20
(External)
11
G 3/8 (External)
For Cyl above 3 liters
Sulphur Hexafluoride
200
5
G 5/8
A-RH
590
(Upto 3000 psig)
0.965-14
NGO-LH-INT
6
G 5/8 A - (External)
6
W 21.80 x 1/14 (External)
Dichlorodifluoro
methane and
other refrigerant gases
' mark in requirement
of European Directive
1999/36/EC.
