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2-Way General Service
Valves |
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General Service
Air/Inert Gas, Water, Lt. Oil (up to 300 SSU) service at moderate
temperatures. These valves have two pipe connections, one inlet and one
outlet, and are used to permit and shut off fluid flow. The two types of
operations are “Normally Closed” and “Normally Open”.
Two Types of Operation
Normally Closed
(NC) - Fluid is shut off when the coil is de-energized, flows through
the valve when the coil is energized .
Normally Open
(NO) - Fluid flows through the valve when the coil is de-energized,
shuts off when the coil is energized .
Two Types of Construction
Direct Acting -
When the solenoid is energized, the core directly opens the orifice of a
Normally Closed valve or closes the orifice in a Normally Open valve.
The valve will operate at pressures from 0 psi to its rated maximum. The
force needed to open the valve is proportional to the orifice size and
fluid pressure. As orifice size increases, so does the required force.
To open larger orifices without increasing solenoid size, internal
pilots are used.
Internally
Piloted - These valves use line pressure to assist operation. When the
coil is de-energized (on a Normally Closed valve), the pilot orifice is
closed and line pressure is applied to the top of the piston or
diaphragm through the bleed orifice, closing the valve. When the coil is
energized, the core opens the pilot orifice, relieving pressure from the
diaphragm or piston. Line pressure, alone, opens the valve by lifting
the diaphragm or piston off the main orifice.
2-Way Red Hat Valves (2.9MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8030
Direct Acting Low Pressure/Vacuum
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8040
High Flow/Low Pressure
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8210
General Service Diaphragm/Piston |
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8215
Low Pressure Air/Inert Gas
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8221
Slow Closing/Anti-Water Hammer |
8223
High Pressure |
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8256
Sub-Miniature Poppet |
8260
Plastic Body, Air/Water |
8262
Direct Acting Poppet
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8263
Direct Acting Poppet, Normally Closed
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8280
Group
Mounted Sub-Miniature Poppet |
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3-Way
General Service Valves |
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General Service
Air/Inert Gas, Water, Lt. Oil (up to 300 SSU) service at moderate
temperatures. These valves have three pipe
connections and two orifices. When one orifice is open, the
other is closed and vice versa. They're commonly used to
alternately apply pressure to and exhaust pressure from a
valve actuator or a single acting cylinder. These valves can
be normally closed, normally open or
universal.
Three
Types of Operation
Normally Closed
(NC) - Fluid is shut off when the coil is de-energized, flows through
the valve when the coil is energized .
Normally Open
(NO) - Fluid flows through the valve when the coil is de-energized,
shuts off when the coil is energized .
Universal (Univ)
- This allows the valve to be connected in either the Normally Closed or
Normally Open position … or to select one of two fluids or to divert
flow from one port to another.
3-Way Red Hat Valves (2.4MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8300/8315
Direct Acting
High Flow/High Pressure
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8314
Direct Acting Poppet Valves |
8316
Pilot Operated Diaphragm Valves |
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8317
Pilot Operated Quick Exhaust
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8320
Direct Acting Poppet Valves |
8321
Pilot Operated Quick Exhaust |
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8327
High Flow, Balanced Poppet
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8356
Sub-Miniature Poppet |
8360
Plastic Body, Air/Water |
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8380
Group Mounted Sub-Miniature Poppet
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8551
High Flow Spool Valve |
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4-Way General
Service Valves |
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General Service
Air/Inert Gas, Water, Lt. Oil (up to 300 SSU) service at moderate
temperatures.
Four-ported
valves are generally used to operate double-acting cylinders or
actuators . They have four or five pipe connections, commonly called
ports: One pressure inlet. Two cylinder ports providing pressure to the
double-acting cylinder or actuator. One or two outlets to exhaust
pressure from the cylinders. In a de-energized position, pressure is
connected to one cylinder port; the other port is connected to the
exhaust. In an energized position, pressure and exhaust are reversed.
Four ports means less piping is required. With five ports, independent
speed controls can be mounted in each port.
Three
Types of Construction
Single Solenoid
- When the solenoid is energized, the valve shifts, then returns to the
original position when de-energized.
Dual Solenoid -
When one solenoid is energized, the valve shifts, then returns when the
other solenoid is energized. They may be energized momentarily or
continuously, but never concurrently. Some valves, both single and dual
solenoid, may change position on loss of fluid pressure.
Single Air
Operator - When the operator is pressurized, the valve shifts, then
returns when the pressure is removed.
4-Way Red Hat Valves (2.4MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8340 4/2 Direct Acting Air Only
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8342
4/2 Direct Acting High Flow |
8344
4/2 Piston/Poppet |
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8345
4/2 Compact
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8401/8402
5/2 Directional
Control Valves |
8551/8553
5/2 High Flow Spool Valve |
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Electronically
Enhanced Next Generation Valves |
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The RedHat Next Generation revolutionary
new power management technology sets new industry standards for
reliability and power consumption. The new line of solenoid valves
accepts both AC and DC voltages while improving performance. These
2-, 3- and 4-way solenoid valves are designed to handle most fluid
control applications.
RedHat Next
Generation is the future of solenoid valve technology, designed and
manufactured to provide new capabilities. The Next Generation of
solenoid valves pro-vides lower operating cost, and represents an
advancement in the performance, reliability, and ruggedness that you
have come to expect from ASCO. RedHat Next Generation valves use
electronics technology to manage power, providing a new standard of
operation. The solenoid incorporates a power management circuit
providing lower power consumption, enhanced pressure and flow ratings,
and electrical surge suppression to both the solenoid and electronic
controls. The new solenoid draws only 2 watts of power. A conventional
solenoid with the same performance can draw as high as 17 watts of
power. The savings in power usage over the installed life of the valve
will lower the total cost of ownership up to 14%. The new technology
accepts both AC and DC voltages without sacrificing flow or pressure
specifications. DC performance has been increased by 150% to 500% from
today's industry standards, making the valves’ DC characteristics
equivalent to AC pressure and flow values. This simplifies your control
by eliminating the need for AC output cards, reduces wiring costs, and
provides safer working environments for users operating on DC. RedHat
Next Generation coils are offered in three voltage ranges covering most
electrical requirements – 100-240/AC or DC, 24-99/AC or DC, or 12-24/DC.
Each coil has built-in electrical surge suppression that protects the
coil from external voltage spikes and eliminates inductive voltage
spikes associated with conventional solenoids. An optional solenoid is
available for use in Class I, Division 2 hazardous locations. ASCO
RedHat Next Generation addresses many other operating characteristics
that will further improve the life of your solenoid valves. These
include a much lower temperature rise, and an increase in valve ambient
temperature rating to140°F/60°C. Because of our confidence in the rugged
design of the RedHat Next Generation solenoids, ASCO is pleased to
extend a 3-year warranty on the coils.
Electronically Enhanced Valves (2.4MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8030
Direct Acting Low Pressure (2-Way)
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8210
Pilot Operated Diaphragm (2-Way)
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8223
Pilot Operated High Pressure (2-Way)
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8262
Direct Acting Poppet (2-Way)
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8263 Series
Direct Acting Poppet (2-Way)
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8314
Direct Acting Poppet (3-Way) |
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8316
Pilot Operated Diaphragm (3-Way)
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8317
Pilot Operated Quick Exhaust (3-Way)
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8320
Direct Acting Poppet (3-Way) |
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8321
Pilot Operated Quick Exhaust (3-Way)
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8344
Pilot Operated Piston/Poppet
(4-Way)
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8345
Pilot Operated Compact
(4-Way)
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Valve Automation
Products |
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The valve automation market has demanding
product requirements and specifications. ASCO is uniquely qualified to
meet these needs. With our offering of direct mount NAMUR valves and
valve position indicators ASCO can offer one source of supply for your
valve automation solutions. ASCO offers a complete range of 3 and 4 way
valves which mount directly onto single acting and double acting
actuators, including 3/2 - 5/2 combination valves that can be converted
from 3 way operation to 4 way operation by simply flipping a gasket or
changing a plate. These direct mount pilot valves eliminate the need for
piping the valve to the actuator, and allow for fast, easy installation
on the actuator. These valves are offered with Red-Hat II® molded epoxy
solenoids, along with optional features such as high temperature Class H
molded coils and manual operators. Additional coil types are available.
Valve Automation Products (2.0MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8320 Direct Mount Pilot Valve
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8327 High Flow Direct Mount
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8401 Corrosion Resistant
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8342 Direct Mount Pilot Valve
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8551/8553 Direct Mount Spool Valve
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8320 Dribble Control Valve
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Special Service Valves |
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One of ASCO’s
many strengths is the breadth of our product line and our ability to
provide customers with the best valve for the application. Our Special
Service valves are key to meeting these varied requirements. As listed
in the index below ASCO has focused product lines which meet special
application parameters from steam to vacuum. These Special Service
valves are capable of meeting typically harsh applications where more
standard solenoid valves are not able to meet the specifications or
lifetime requirements. They also can relate to the media which is being
handled, the operating conditions, the application specifications or
environment. The valves in this section consist of 2-wayvalves, 3-way
valves, 4-way valves, and air-operated valves. If you cannot find the
valves you need in this section, ASCO has the industry’s largest staff
of design engineers to possibly create the special valve you might need
for your unique application.
Special Service Valves (2.0MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8290
Angle Body Piston Valves
Angle Body Valve (PDF 1.3MB)
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Proportional 8290 w/ Compact
Positioner
Angle Body Valve (PDF 1.3MB) |
Posiflow Proportional Valves
Posiflow Valve (PDF 1.2MB) |
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Air Operated Valves
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Condensate Drain Valve Assemblies
Condensate Drains (PDF 627kB)
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Cryogenic & Liquid CO2
Valves
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Duct Collector
Valves
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Hot Water & Steam
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Long Life
Valves
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Shielded Core Valves
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Medium & High Vacuum Valves
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Ammonia Valves |
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Combustion
Valves |
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The application of valves and accessories
for use on combustible media requires careful consideration of the
application and use to assure proper and optimal operation.
Consideration in valve selection must be given to the function of the
valve. Generally a combustion train includes 2 shutoff valves on both
the pilot and main media feed lines. Combustible media includes natural
gas and oil, and this section is organized into sections for each media.
Additionally special constructions developed for use on combustible
media are shown. These solenoid operated valves
handle combustion system pilot & main line fuel shutoff &
control needs. These valves are available in 2-way normally closed,
normally open, manual reset and 3 way diversion. ASCO valves are
available in brass, aluminum and stainless steel. Features include
junction box, pipe taps, visual indication, proof of closure,
leading agency approvals and pipe connections from 1/8” to 3”. Most
valves are rated for -40ºF service for outdoor installation in
frigid climates.
Combustion Valves (9.3MB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8030 2-Way Natural Gas Valve
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8040 2-Way Natural Gas Valve
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8042 2-Way Natural Gas Valve
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8043 Valve (w/ Visual Indication &
Proof of Closure)
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8210 2-Way Watertight Natural Gas
Valve
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8214 Valve (w/ Visual Indication &
Proof of Closure)
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8262
Gas Shutoff Valves
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Hydramotor w/
Aluminum
Gas Valve
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Hydramotor
with Cast Iron Gas Valve |
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HV266
Natural Gas Specialty Valves
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K3A 2-Way Normally
Closed Natural Gas Valve
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S261/2 2-Way Natural
Gas Valve
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SV311
NG Normally Closed Valves with Visual
Indication
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8262/8263 2-Way OIL Valves
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8266 2-Way OIL Valves
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HOV1 2-Way-Normally Closed OIL Valves
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SV401 2-Way-Normally Closed OIL Valves
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8377 3-Way-Normally Closed OIL Valves
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HOV13
3-Way-Normally Closed OIL Valves
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8044 Normally Closed Manual Reset Valves
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S-Series Valves |
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Engineered and developed with ASCO’s global resources, the Series S
compact solenoid valve range is suitable for 2-Way and 3-Way applications
for the control of air, water, light oil, and steam. With reduced envelope
dimensions and easy to install DIN connections, the Series S is designed to
save space and installation time for commercial applications where space and
serviceability are essential.
"S" Series Catalog (866kB)
Optional Features (PDF
836kB)
Engineering Information
(PDF 1.5MB)
Valve Terminology (PDF 69kB) |
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8238
General Service Solenoid
Valves
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8240 Steam and Hot Water Valves
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8261 General Service Solenoid Valves
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8374
General Service Solenoid Valves
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