OSHA Standard Compliant Pressure Relief 3-Port Valve with Locking Holes
Single Action
VHS20/30/40/50-D
Series
VHS20W/30W/40W/50W-D
Series
How to Order
Double Action
Symbol
3 1
2
q
e
r
y
w
· Option/Semi-standard: Select one each for
a to f.
· Option/Semi-standard symbol:
When more than one specification is required, indicate in
alphanumeric order.
Example) VHS30-N03-BS-RZ-D
t
VHS 30
03
D
Made to Order
(For details, refer to page 8.)
Symbol
Description
q
Body size
20
30
40
50
w
Handle operation
Nil
Single action
W
Double action
+
e
Pipe thread type
Nil
Rc
*
1
N
NPT
F
G
+
r
Port size
01
1/8
—
—
—
02
1/4
—
03
3/8
—
—
04
1/2
—
—
—
06
3/4
—
—
10
1
—
—
—
+
t
Option
a
Mounting
Nil
Without mounting option
B
With bracket
+
b
Silencer
Nil
Without silencer
S
With built-in silencer (for EXH port)
+
y
Semi-standard
c
Handle color
Nil
Red
K
Black
+
d
Handle material
Nil
Resin
M
Metal
+
e
Flow direction
Nil
Flow direction: Left to right
R
Flow direction: Right to left
+
f
Pressure unit
Nil
Product label in SI units: MPa
Z
*
2
Product label in imperial units: psi
v
*
3
v
*
3
v
*
3
v
*
3
*
1 The pipe thread type for the EXH port is G.
*
2 For the pipe thread type: NPT only. This product is for overseas use only according to the New Measurement Act. (The SI unit type is provided for use in Japan.)
*
3
v
: For the pipe thread type: NPT only
A system designed to respond quickly and easily to your special ordering needs
Short lead times
This system enables us to respond to your
special needs (additional machining, accessory
assembly, or the designing of a modular unit) and
deliver your personalized products as quickly as
standard products.
Repeat orders
Once we receive a simple special part num-
ber from one of your previous orders, we will
process the order, manufacture the product,
and deliver it to you as quickly as possible.
Simple Specials System
For modular connection units (shipped assembled), the simple specials system can be used.
Please contact your local sales representative for more details.
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