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Siemens POSITIONER SIPART PS2 SPARE PART PNEUMATIC BLOCK  I/P C73451-A430-D80 C73451-A430-B30

Siemens SIPART PS2 C73451-A430-D80 / C73451-A430-B30 Pneumatic I/P Block

SKU: 1600982311717Brand: TSA HydraulicsCategory: Valves

The Siemens SIPART PS2 C73451-A430-D80 and C73451-A430-B30 Pneumatic Blocks are precision replacement components designed for reliable pneumatic pressure control in industrial valve positioning systems.

$1,243.03
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Siemens SIPART PS2 C73451-A430-D80 / C73451-A430-B30 Pneumatic I/P Block

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Product Overview

The Siemens SIPART PS2 C73451-A430-D80 and C73451-A430-B30 Pneumatic Blocks are precision replacement components designed for reliable pneumatic pressure control in industrial valve positioning systems. Manufactured by Siemens, these single-acting pneumatic valve assemblies regulate compressed instrument air within compatible SIPART PS2 electro-pneumatic positioners. The C73451-A430-D80 is the replacement ordering number for the earlier C73451-A430-B30, supporting maintenance and restoration of pneumatic control performance.

The C73451-A430-D80 incorporates a piezoelectric pneumatic control mechanism and is supplied with seals and mounting screws for replacement installation. Designed for compatible SIPART PS2 6DR4 and 6DR5 positioners, the assembly supports accurate actuator pressure regulation and controlled valve movement. It is suitable for industrial process automation, oil and gas processing, chemical manufacturing, power generation, water treatment, and pneumatic control valve maintenance. 

Technical Specifications

Specification

Value

Product Name

Pneumatic I/P Valve Block

Manufacturer / Brand

Siemens

Product Series

SIPART PS2

Primary Part Number

C73451-A430-D80

Previous Part Number

C73451-A430-B30

Product Type

Pneumatic Valve Positioner Spare Part

Component Classification

Single-Acting Pneumatic Control Block

Operating Technology

Piezoelectric Pneumatic Valve Control

Primary Function

Pneumatic Airflow and Actuator Pressure Regulation

Pneumatic Configuration

Single Acting

Operating Medium

Clean, Dry Instrument Air

Positioner Compatibility

Siemens SIPART PS2

Compatible Positioner Families

6DR4 and 6DR5, Subject to Variant Compatibility

Replacement Function

Internal Pneumatic Valve Assembly

Pneumatic Control

Instrument Air Supply and Exhaust Regulation

Actuator Compatibility

Single-Acting Pneumatic Valve Actuators

Mounting Configuration

Internal Positioner Installation

Included Components

Pneumatic Block, Seals and Mounting Screws, D80 Kit

Previous Component Designation

C73451-A430-B30

Replacement Ordering Number

C73451-A430-D80

Double-Acting Alternative

C73451-A430-D81

Manufacturer Article Weight

0.200 kg, D80

Country of Origin

Germany

Installation Application

SIPART PS2 Pneumatic Block Replacement

Operating Application

Industrial Pneumatic Valve Positioning

Condition

New

Warranty

1 Year

Key Features

Original Siemens SIPART PS2 pneumatic block design

Single-acting pneumatic valve control configuration

Piezoelectric technology for precise air regulation

Replacement for C73451-A430-B30 pneumatic valve assembly

C73451-A430-D80 replacement kit with seals and mounting screws

Compatible with selected Siemens SIPART PS2 6DR4 and 6DR5 positioners

Integrated pneumatic supply and exhaust control

Supports reliable pneumatic actuator positioning

Compact internal assembly for positioner maintenance

Designed for consistent industrial instrument air control

Supports restoration of pneumatic valve positioning performance

Suitable for industrial equipment servicing and replacement

Typical Applications

Siemens SIPART PS2 valve positioner maintenance

Single-acting pneumatic actuator control systems

Industrial electro-pneumatic valve positioning

Pneumatic I/P block replacement and repair

Oil and gas production and processing facilities

Chemical and petrochemical manufacturing plants

Petroleum refining installations

Power generation and utility systems

Water and wastewater treatment facilities

Industrial flow and pressure control systems

Pneumatic valve automation and instrumentation

Industrial process control equipment maintenance

Shipping & Support

Fast dispatch – Australia & Worldwide Shipping

Technical assistance available

1-year warranty

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Questions about this part?

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Three options. Search by part number if you have the OEM code from Parker, Danfoss, Linde, Kawasaki, Kayaba or Grundfos — our search recognises both manufacturer codes and aftermarket cross-references. Browse by category if you know the component type (pumps, valves, cylinders, etc.). Or send a spec sheet to our engineering desk and we'll cross-reference against our 3,000+ SKU catalogue within one business day.

Can you help me size a pump or valve for my application?

Yes — sizing support is included with every order. Send us your operating pressure, flow rate, viscosity, drive speed and duty cycle, and our engineers will recommend a suitable component from our catalogue with full datasheets. We don't custom-build parts ourselves, but we can spec the right OEM component for almost any standard industrial application.

Can you cross-reference a discontinued part?

Yes — cross-referencing is one of the things we do most. Send us the original part number (even if the manufacturer has dropped it) and our engineering desk will identify a current equivalent or compatible alternative. Cross-reference lookups are free and typically come back within 4 business hours.