Tissin TS900 TS905 Smart Valve Positioner for Pneumatic Control Valves

Product Overview

The Tissin TS900 / TS905 is a smart valve positioner used to control pneumatic valve actuators from a 4–20 mA DC input signal.

It is designed for both linear and rotary control valve applications. The positioner monitors the commanded valve position and regulates pneumatic pressure to the actuator accordingly.

For users comparing the two models, the key difference is the body construction:

• TS900: Aluminum die-cast body, 3.5 kg
• TS905: Stainless steel 316 body, 7.0 kg

Both models use the same basic signal, air supply, stroke and performance specifications in the published product documentation.

The series provides an LCD display and four buttons for local operation. It also includes functions such as automatic setup, partial stroke testing, alarm functions and Auto/Manual operation.

Technical Specifications

Optional configurations: HART 7, 2-wire position transmitter and alarm switch. Position transmitter and alarm switch options are specified with a 9–30 V DC supply.

Application Industry

Chemical Processing

Suitable for pneumatic valve position control where a 4–20 mA command is used.

Oil & Gas

Can be used for pneumatic control valves in process and related industrial systems.

Petrochemical

Applicable to automated valve control in process equipment.

Power Plants

Can be used with pneumatic control valves in power-generation process systems.

Water & Wastewater

Suitable for automated pneumatic valve applications in water treatment processes.

General Industrial Automation

The positioner can be integrated into control valve loops using a compatible pneumatic actuator and control system.

Common Problems

4–20 mA Signal Is Present but the Valve Does Not Move

Check whether the instrument air supply is within the specified range. Then inspect the actuator, pneumatic tubing and mechanical linkage.

Valve Position Does Not Follow the Command

Check the feedback mechanism and perform the appropriate calibration procedure. The positioner must be mechanically matched to the valve actuator.

Air Consumption Is Higher Than Expected

Check the pneumatic connections and air leakage around the actuator and tubing. Air consumption should not be assessed from the positioner alone without checking the complete pneumatic circuit.

Positioner Shows an Alarm

Check the alarm condition and the valve/actuator operating state. If an alarm switch is installed, also check its wiring and power supply.

Need HART Communication

Confirm the positioner configuration before purchase. HART 7 is an optional configuration rather than a feature that should automatically be assumed on every TS900/TS905 unit.

Replacement Models

For buyers replacing an existing smart valve positioner, TS900 and TS905 should be selected after checking the complete valve assembly.

Important replacement information includes:

1. Positioner model
   Existing brand and model.
2. Valve type
   Linear or rotary.
3. Actuator
   Pneumatic actuator model and operating arrangement.
4. Travel
   Required linear stroke or rotary angle.
5. Signal
   Control system output, normally 4–20 mA DC for this series.
6. Air supply
   Available instrument air pressure.
7. Housing material
   TS900 aluminum die cast or TS905 stainless steel 316.
8. Optional functions
   HART, position transmitter or alarm switch.
9. Installation environment
   Temperature and applicable hazardous-area requirements.

There is no single universal replacement model because the mounting arrangement, feedback mechanism and actuator configuration must also match.

Why Buy From Us

Product Information Check

We check the required model and configuration before quotation so that the supplied positioner matches the project requirements as closely as possible.

TS900 / TS905 Supply

Both aluminum-body TS900 and stainless-steel TS905 configurations can be quoted according to availability and project requirements.

Replacement Project Support

For replacement work, the existing product nameplate is useful for confirming the required model and optional functions.

Valve Automation Sourcing

Control valves, actuators, valve positioners and related industrial instruments can be sourced for the same project.

Export Order Support

We handle product quotation, order coordination and international shipment arrangements for overseas buyers.

Stock & Delivery Time

The availability of Tissin TS900 and TS905 depends on the exact model, options and order quantity.

Products with HART, position transmitter or alarm switch configurations may follow a different supply schedule from standard versions.

For an accurate delivery estimate, please provide:

• TS900 or TS905
• Quantity
• Required options
• Destination country
• Target delivery date

Current stock and lead time should be confirmed before the purchase order is placed.