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Global FRL soft start/dump valve product offering includes individual soft start or dump valves or combined soft start/dump valves.
Parker's Global P31D and P32D Global Dump Valves efficiently
manage pressure by safely and quickly exhausting pneumatic energy in an
industrial environment. These quick dump valves are high flow, normally closed,
3-port, 2-position directional control valves. Upon energizing the solenoid,
inlet air is applied to the top of the piston. The piston pushes against the
spring and opens the main valve providing full flow air to the downstream. When
the solenoid is de-energized, the main valve closes allowing downstream air to
exhaust rapidly through the bottom plug. The bottom plug is tapped so that
exhaust may be piped away or fitted with a muffler/silencer. These global dump
valves can be mounted using a modular connector to other P31/P32 Global Air Preparation
products.
Parker P31S and P32S Global Soft Start Valves offer
increased productivity by providing safe introduction of pressure to machines
or systems and potentially reducing damage that can occur at start up. They
allow the pressure to gradually build to a set point before fully opening to
deliver full air line pressure. The controlled introduction of pressure can be
an important safety factor and prevent damage to tooling when the air pressure
is introduced at machine or system start up. When pressure is supplied to the
inlet port, gradual filling of the downstream system occurs through the
adjustment needle valve. The piston opens the main valve when the downstream
side of the valve reaches approximately 60% of the supply pressure. The ramp up
time to reach the switch-over pressure is adjustable via the needle valve in
the cover. The P31S and P32S Global Soft Start Valves can be mounted using a
modular connector to other P31 and P32 Global Air Preparation Products.
P31T and P32T Modular Global Combined Soft Start/Dump Valves
provide for the safe introduction of pressure to machines or systems. Soft
start/dump valves, when set, allow the pressure to gradually build to the set
point, before fully opening, to deliver full flow air line pressure. The
controlled introduction can be an important safety factor and prevent damage to
tooling when air pressure is introduced at machine or system start up. When the
valve is installed into the pneumatic system and the pilot operator receives no
signal, the air is blocked at port 1. When a pilot signal is received at the
pilot operator, the valve shifts, closing the connection between ports 2 and 3.
At the same time, air flow begins between ports 1 and 2 at a slow rate,
controlled by the needle valve located on top of the valve. When the downstream
pressure reaches approximately 60% of the supply pressure, the main valve spool
opens, allowing full flow through the valve in the system. If pilot signal or
system pressure is lost, the valve returns to its initial state, venting the
downstream pressure through port 3.
Pressure supply piping must be the same size as the inlet
port or larger, to ensure the pilot valve receives sufficient pressure supply
during high flow conditions. The valve should be mounted downstream of the FRL,
with the soft start adjustment needle easily accessible. The P31T and P32T
Global Soft Start/Dump Valves can be mounted using a modular connector to other
P31 and P32 Global Air Preparation Products. Note: soft start/dump valves are
not intended to be used as emergency shut-off valves, but should be placed
after a manual shut off valve.
Features/Benefits:
Ā·
Dump Valves
o
Safely and quickly exhaust pneumatic energy
o
Robust & lightweight aluminum
construction
o
3-way, 2-function automatically dumps downstream
pressure on the loss of pilot signal
o
High flow and exhaust capability
o
Solenoid or air pilot operation options
o
Silencer included
Ā·
Soft Start
o
3-way, 2-position function ensures safe pressure
introduction
o
Adjustable slow start
o
Solenoid or air pilot operation options
Ā·
Soft Start/Dump Valves
o
Available with an adjustable soft start to allow
a gradual introduction of pressure into machinery on start up
o
3-way, 2-position function ensures safe pressure
introduction
o
High flow and exhaust capability
o
Solenoid or air pilot operation options
o
Adjustable slow start
o
Silencer included
| Literature and Reference Materials |
|---|
| 0700P Catalog_Global FRL Products |
| 0760 Catalog_Parker Global and P3Y Air Preparation System |
| Accessories for FRLs, Installation and Service Manuals |
| Compliance, Certifications & Safety |
|---|
| Pneumatic Division B10 Datasheets |
| Selector Guides |
|---|
| Pneumatic Calculator |
