VALUTION

Steam Pressure Let Down & Conditioning

Model PD4, Integrated PRDS

Valution Steam Conditioning Valve Series

Valution’s steam conditioning valve series offers an advanced Pressure Reducing and Desuperheating System (PRDS) engineered to precisely control both the pressure and temperature of high-pressure, high-temperature steam.

This solution is available in various configurations, including:
1. An integrated PRDS unit that combines both pressure and temperature control.
2. Standalone components such as a globe-type pressure reducing valve, desuperheater, and temperature control valve package.

Model PD – Integrated PRDS
The Valution Model PD integrated PRDS unit typically features an angle-style body design and incorporates flow velocity control trims to minimize noise and vibration, ensuring stable performance under extreme pressure conditions.
These valves can be equipped with Valution’s proprietary flow velocity control trims, including:
- Hani Trim (multi-hole, multi-stage)
- Breeze Trim (disc stack type)
- Cage Balanced, Cascade, and Pilot Trims
Each trim type offers selectable flow characteristics - equal percentage (EQ-%), linear, or modified percentage - to meet specific system requirements with precision.

Valution’s PRDS solutions provide a high turndown ratio, ensuring wide-range flow control. The use of advanced multi-spring-return nozzle designs delivers exceptional atomization performance. To enhance durability, the desuperheater section is built with a double inner wall structure, offering increased protection against internal wear or damage.
A wide range of actuator types is supported, including spring-diaphragm, cylinder, electric motor, and hydraulic actuators.

In addition, the valves are fully compatible with standard E/P positioners, as well as smart and HART communication protocols, enabling advanced control and diagnostics capabilities.

PD, Model Selection & Numbering System

*B : Bellows Bonnet

PD, Product Range

Standalone Globe-Type PCV(GL), Desuperheater(DH), and TCV(GL) Package

Standalone PCV & TCV – Model GL
Valution’s standalone pressure reducing valve(PCV) and temperature control valve(TCV) are typically designed with a globe-style body, incorporating flow velocity control trims to reduce noise and vibration, ensuring stable operation under extreme pressure conditions.

These valves can be equipped with Valution’s proprietary trim designs, including:
- Hani Trim(multi-hole, multi-stage)
- Breeze Trim(disc stack type)
- Cage Balanced, Cascade, and Pilot Trims
Each trim type supports selectable flow characteristics - equal percentage(EQ-%), linear, or modified percentage—allowing for precise customization to meet specific system demands.

A wide variety of actuator types are supported, including spring-diaphragm, cylinder, electric motor, hydraulic.
Additionally, the valves are compatible with standard E/P positioners as well as smart and HART communication protocols, offering advanced control and diagnostics functionality.

Standalone Desuperheater – Model DH
Valution’s standalone desuperheater(DH) solution delivers a high turndown ratio for wide-range flow control, and provides superior atomization performance through its orifice-type multi-nozzle design and advanced multi-spring-return nozzle configuration.
The DH model is available in both direct-mounted and remotely installed configurations with the TCV. The illustration below depicts the remote installation type.
For enhanced durability, the desuperheater section can be optionally equipped with a double inner wall, providing extra protection against internal erosion and wear.

GL Model, Product Range for PCV & TCV

GL Model, Trim Design