 Valtek Control Products
Valtek control products
represent a broad range of high performance control valves
- as well as advanced digital communication products for
use on valves. The Valtek control valve line includes
globe, rotary eccentric disc, rotary eccentric plug, segmented
ball, and severe service valves.
Valtek control
valves are specifically designed and manufactured
for reliability, long life, part inter-changeability,
and ease of maintenance - all resulting in superior
life-cycle costs. From Mark One globe valves to
Valdisk, Maxflo rotary valves and custom-engineered
valves, Valtek control products have earned a reputation
for being high quality control valves. Valtek valves
are equipped with spring cylinder, spring diaphragm
or Scotch Yoke actuators that provide the thrust
and speed necessary to manage any service.
Also, Valtek
control products are also known for handling the
most severe services: cryogenic, superheated steam,
volatile and corrosive fluids, erosion, high pressure
drops, vibration, cavitation, flashing, and high
noise levels. Valtek four-way analog and digital
positioners provide accuracy and response to handle
the most exacting applications.
Valtek digital
(HART®, Mod bus and FOUNDATION fieldbus) and
analog positioners provide the accuracy and response necessary
to handle the most exacting applications. This reputation
has been gained not only with standard control valves,
but also for Valtek advanced products such as StarPacTM
intelligent systems and LogixTM digital valve controllers. Valtek severe service valves have been used
industry-wide to effectively reduce or eliminate
the harmful effects of high pressure drops, cavitation,
flashing, gaseous and hydrodynamic noise, high velocities,
extremely erosive services, and severe vibration.
The Valtek Mark OneTM globe valve is noted for its
reliability, tight shutoff, positioning accuracy, high thrust
and simplified maintenance. It is widely used in many
industries.
Designed for the toughest applications, it handles
pressures from vacuum to 15,000 psig / 1034 barg and
temperatures from -423° to 1500° F / -253° to 816° C.
The Valtek Tiger-ToothTM control valve effectively
attenuates gaseous and hydrodynamic noise, and
eliminates the damaging effects of cavitation.
Tiger-Tooth trim features a series of circular stacked
discs; each of which has concentric grooves (or teeth)
machined on the face.
Valtek ChannelStream® control valves eliminate cavitation
damage and minimize hydrodynamic noise
even under the most severe liquid applications. Valtek MegaStreamTM control valves reduce noise by up
to 30 dBA in gas applications. The MegaStream attenuator
is designed with a series of drilled-hole cylinders
which permit staged pressure reduction and controls
the turbulence carried into the downstream piping.
The Valtek ValdiskTM 150 high-performance
rotary valve is designed to
control ANSI Class 150 processes.
It is available in a wafer or lug-style
body providing tight shutoff at a low
cost with quick delivery schedules.
The Valdisk 150 rotary valve is
available in size 2 thru 12-inches
with an operating temperature range
of -100° to 400° F / 75° to 205° C.
The typical liquid pressure recovery
factor (FL) of the Valdisk 150 rotary
valve is better than most butterfly
valves, reducing the tendency to
cavitate or choke.
The Valtek Valdisk® rotary control
valve is designed with an eccentric/
clammed disc that provides high
capacity with tight shutoff. It performs
at pressures from vacuum to
6000 psig / 414 barg, and temperatures
from -423° to 1200° F / -253°
to 650° C.
With a lightweight wafer-style body,
Valdisk is available with pressure assisted ‘Jam-lever Toggle’ seating,
achieving bidirectional bubble tight
shutoff, while maintaining low
break-out torque.
When the
service is
particle entrained
with
high pressures
or velocities, Valtek
SurvivorTM valve is the
answer. Its
sweep-angle
body reduces
the damaging
effect of entrained
solids in
many erosive
services. Valtek Mark EightTM
using a unique
'Y' style globe
body,
provides higher
flow capacity
and less process
turbulence than
conventional
valves. A less
restrictive low
passage permits
less pressure to
be converted into
velocity as fluid
passes through the eat, resulting in a lower valve
recovery factor and higher capacity.
Valtek
Tek-CheckTM
is used extensively
in the oil and gas
industry, the
Valtek piston
check valve
features a
special non slamming
piston.
This valve is
also effective in
dampening
pulsating flow.
Product range includes:
- Globe,
Angle, Y-pattern, and Expanded body types in variety of alloy steel
- Body sizes from 1/2" to 42" in Class 150 to 4500
- Integral or separable end flanged connections
- Reliability
- over a million cycles typical
- High
rangeability - up to 300:1
- Tight
shutoff - Class VI bubble tight for soft seated design and better than Class IV for metal seated valve
- High
pressure drops - erosion resistant, excellent
control
- Anti-cavitation
- TigerTooth, CavControl, and CavStream designs
- Low
noise - up to 30 dB noise reduction using the Megastream design
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