Your Trusted Control Valve Manufacturer & Supplier
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Control Valve Solutions for Industrial Buyers

Tailored control valve support for EPC contractors, OEMs, distributors, process plants and MRO teams—from RFQ review and valve selection to documentation, replacement and supply support.

PROCESS PLANT SUPPORT

Control Valve Supply & Replacement for Process Plants

Select for the process you operate—not only the valve you already have.

MacoTango supports control valve supply for new process duties, operating changes and planned replacements. Share your process data or existing valve information to review suitability, installation differences, documentation and delivery requirements before committing to an order.

Process-duty review · Replacement compatibility · Documentation & supply support

Aerial view of a petrochemical facility

What Does Your Plant Need to Resolve?

Start with the task in front of you: selecting for a new duty, reviewing a recurring problem, or preparing a planned replacement.

Chemical plant process tower
New or Changed Operating Duty

Adding a process line, changing the medium or operating at a different load? Review the valve against the revised flow, pressure and temperature conditions rather than carrying forward an old specification. Start with: Available process data, a preliminary datasheet or a description of the operating change.

Recurring Valve Problems

Experiencing unstable control, passing, repeated trim wear or excessive noise? Share the symptoms and operating conditions so the application and proposed valve configuration can be reviewed together. Start with: Valve identification, operating data, photographs and any available maintenance history or trends.

Planned Replacement or Shutdown

Preparing to replace an existing valve during a maintenance window? Establish the replacement scope, installation constraints and required delivery date before finalizing the order. Start with: The existing datasheet or nameplate, installation dimensions, quantity and required-on-site date.

Know What Will Change Before You Replace the Valve

For an existing installation, compare the proposed assembly with the current valve and site requirements. Make interface differences visible before purchasing—not during the shutdown.

Compatibility Area What to Compare
Piping connections Nominal size, pressure rating, connection standard, flange facing or weld-end preparation, and face-to-face dimensions.
Installation envelope Overall dimensions, actuator orientation, flow direction, maintenance clearance and any site support requirements.
Control and utilities Input signal, feedback, available air pressure or power supply, positioner and accessory requirements.
Operating function Required capacity, control characteristic, shutoff duty, leakage requirement and response to loss of utilities or signal.

Where a difference is identified, the proposal should state what changes, why it matters and whether a site modification or additional approval is required.

A matching nominal size or model description does not establish a confirmed drop-in replacement. Reuse of an existing actuator or accessory also requires a separate compatibility review.

Defined Technical Configuration

Identify the proposed valve, trim, materials, actuator, positioner and accessories, together with the operating data used for selection.

Distinguish preliminary quotation information from drawings and documents that require final approval.

Visible Exceptions and Open Items

Show differences from the existing specification or plant requirements. Keep assumptions, exclusions and information requiring confirmation visible until they are agreed.

Agreed Verification and Documents

Confirm the required standards and editions, applicable certificate scope, material documentation and factory inspection or test requirements.

Specify acceptance criteria and any witnessing or third-party inspection requirements before order confirmation.

Complete Commercial Scope

Identify the valve package price, optional spares, additional inspection or document charges, delivery basis and named place, payment terms and quotation validity.

Make clear what is included—and what remains outside the supply scope.

Have a mandatory manufacturer list or plant specification? Share it at the start. Any proposed alternative must follow your plant’s technical and purchasing approval process.

Get a Proposal Your Plant Team Can Evaluate

Compare a defined valve assembly and supply scope—not only a model number and unit price. The technical and commercial offer should make the selection basis, exceptions, verification requirements and delivery conditions clear.

Chemical factory exterior
End-User References

Selected Industrial End-User Control Valve References

Selected supply references for chemical, fertilizer, power, metallurgical and process plants. The list shows representative valve scopes supplied for plant projects, capacity expansions and equipment upgrades.

End User Valve Scope QTY Plant / Application
Anhui Haoyuan Chemical Group Co., Ltd. Multi-Stage High-Pressure Control Valves, High-Pressure Shut-Off Valves and High-Pressure Angle Control Valves 232 Ammonia and urea upgrade projects, including a 300,000 t/a urea high-pressure section
Jiyuan Hengtong High-Tech Materials Co., Ltd. Control Valves, Ball Valves and Butterfly Valves 285 Chloroacetic Acid Project
Shanxi Yangmei Fengxi Fertilizer (Group) Co., Ltd. Control Valves, On-Off Valves and Self-Operated Control Valves 171 60,000 t/a Cyclohexanone and 70,000 t/a Adipic Acid Project
Hoshine Silicon Industry Co., Ltd. Cage-Guided Control Valves, PTFE-Lined Bellows-Sealed Single-Seat Valves, Butterfly Valves and Ball Valves 90 Plant Upgrade Project
Jintang Power Plant Ball Valves and Butterfly Valves 156 Flue Gas Desulfurization and DeNOx System
Xinjiang Guanghui New Energy Co., Ltd. Desulfurization Butterfly Valves and Pneumatic Control Valves 52 4 × 600 t/h Boiler Flue Gas Desulfurization Project
Yunnan Wenshan Aluminum Co., Ltd. Control Valves and Full-Function Control Valves 26 Slurry Preparation and High-Pressure Digestion
Shandong Hualu-Hengsheng Group Co., Ltd. Control Butterfly Valves and Globe Valves 64 Plant Upgrade Project

* Selected industrial end-user supply references. Project scope and quantities are shown as recorded in the available reference list. Additional supporting records may be provided for review where available and applicable.

Looking for a reference relevant to your plant? Tell us your industry, process unit, valve type and service conditions so we can identify the most relevant available project records for review.

Plan Delivery and Support Around Your Maintenance Window

Share the required-on-site date and any shutdown constraints early. Agree the supply schedule, handover information and support responsibilities before the order is released.

Aerial view of a chemical plant
Defined Delivery Milestones

Review the schedule for technical approval, production, inspection and dispatch against the required delivery date.

The quoted lead time should state its starting conditions. Factory readiness, international transport and arrival at site should be distinguished clearly.

Clear Installation Handover

Agree the drawings, identification, packing information and operating or maintenance documents required for the supplied assembly.

Confirm which installation and commissioning tasks remain with your site team and what technical support is included.

Identifiable Spares and Support

Review relevant spare parts for the supplied configuration, such as packing, gaskets, trim components or actuator service parts.

Confirm part references, quoted availability, the technical support contact and warranty terms before purchasing.

Scope note: On-site installation or commissioning is included only when expressly agreed in the supply scope.

Process Plant RFQ

Send Your Valve Requirement

Share your process data, existing valve details or RFQ. We’ll review the application and quotation requirements.

Upload what you already have.

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    Process Plant FAQs

    Questions Before Selecting or Replacing a Control Valve

    Yes. Send the information you already have, such as a nameplate, drawing, photos or basic process conditions. We will identify what else is needed for final selection.

    Yes. Share the existing datasheet, nameplate or drawing. We review the operating duty, connections, dimensions, actuation and any differences before confirming the proposal.

    Potentially. Mounting, travel, force or torque, air supply, signal and required valve action must be checked before compatibility can be confirmed.

    Yes. Share the symptoms, operating conditions and available maintenance information. We review the application before recommending a valve configuration or replacement.

    Send the applicable standards, certificates, inspection and document requirements with the RFQ. The available scope is reviewed and confirmed with the proposed supply.

    Share the required-on-site date early. We can review the technical approval, production, inspection and dispatch schedule against your maintenance window.