Duplex Stainless Steel, Monel, AL Bronze, Inconel 625
Hastelloy B/C, Other Alloy
ACTUATOR
Multi-Spring Rolling Diaphragm Actuators
Pneumatic Cylinder Actuators
Electric Motor Actuators
Hydraulic Actuators
Key Features & Benefits
Basic Design Standard : ASME B16.34
Pressure Balancing
The valve plug receives equal pressure from both the top and bottom sides, allowing
for stable operation even under high differential pressure.
This pressure-balancing design reduces the actuator force required to operate the valve.
Versatile Trim Designs
P-Port and Window Cage are used for low differential pressure service.
Multi-hole Cage (single-stage to multi-stage) and Disc Stack are designed for low-noise,
anti-cavitation, and flashing services.
Tight Shutoff
Tight shutoff capability prevents fluid leakage, which enhances system safety and
reduces fluid loss.
Ease of Maintenance
The quick-change trim design makes trim replacement and repairs easy, minimizing
downtime and reducing long-term maintenance costs.
Customized Trim Designs
With about 40 years of experience in design engineering and advanced engineering
services for control valves, various customized trim designs are available as upgrades
for special process conditions.
Standard Trim Specification
Balanced Plug Type Quick Changed Trim
NOMINAL SIZE
1-1/2" to 32" (DN 40 to DN 800)
TRIM TYPE
P-Port (Contoured)
Cage Window
Multi Turn Plug
Low-Noise Multi Hole Cage (1/2/Multi-Stage)
Anti-Cavitation Multi Hole Cage (1/2/Multi-Stage)
Disc Stack
Hybrid Trim (Disc Stack + Multi Hole Cage)
PLUG GUIDE METHOD
Cage Guided
FLOW DIRECTION
Flow to Open : Contoured (P-Port), Low-Noise Multi Hole Cage, Disc Stack for Gas & Steam
Flow to Close : Anti-Cavitation Multi Hole Cage, Disc Stack for Liquid
Cv RANGE
12 to 6800
FLOW CHARACTERISTIC
Linear, Equal %, Modified %, Quick Open
SEAT LEAKAGE
ANSI/FCI 70-2 Class IV, V, VI (Soft Seat)
MSS-SP61 (Hard Seat)
MATERIAL
316 SS, 316 SS + Stellite, 316L SS, 316L SS + Stellite
Hardened 410 SS / 440C SS
17-4PH, F11/F22/F91/F92 (Nitride treatment),
F11/F22/F91/F92 + Stellite
Inconel 718, XM19
Monel, Hastelloy
Solid Tungsten Carbide Etc.
Anti-Cavitation & Low-Noise Trim
Multi Hole, 1-Stage
Multi Hole, 1-Stage Trim is a cost-effective single-stage globe valve trim that provides
proven performance in high-pressure drop applications to reduce noise with compressible
fluids and to reduce flashing effected erosion and to prevent cavitation that would occur
with p-port trims.
This trim design is suitable for most pressure drop services except for
extremely severe services with very high pressure drops.
It is designed with durability, reliability, performance, and parts interchangeability in mind,
offering long service life and low maintenance costs.
Anti-Cavitation Trim
Multi Hole, Multi-Stage
Multi Hole, Multi-Stage Anti-Cavitation trim consists of concentric cylinders with drilled
holes and grooved channels. The expansion and contraction of the fluid as it moves through
the channels, enters the holes, and then returns to the channels handle the pressure drop
in multiple stages.
This design gradually reduces pressure at each stage, preventing vapor bubble formation
and minimizing fluid noise.
Choosing this trim effectively addresses cavitation issues and maximizes valve performance
in high-pressure applications, enhancing long-term operational efficiency and reducing maintenance
costs
Low-Noise Trim
Multi Hole, Multi-Stage
The Multi Hole Cage in the low-noise trim offers excellent noise reduction and vibration
control performance with multiple pressure breakdown under various high-pressure
compressible fluid conditions.
This enhances system stability and efficiency while contributing to reduced maintenance
costs.
Window Cage Trim
Window Cage
Window Cage Type is a balanced trim. This trim type is for relatively low pressure
differentials for modulating control by characterized window cage, or for on/off control
with large opening widows.
The design and arrangement of the window cage are crucial factors in determining the
flow characteristics of the valve.
By selecting and designing the appropriate window cage, precise flow control can be achieved
to meet the system’s requirements.
