Request a Quote

Power Plants Industry

Power Plants Industry

Raymon Valve is a Chinese supplier of power station valves. We produce high temperature and high pressure power station valves and all valves related to power stations. If you are a Power Plants Industry and want to know about our power station valves please contact us!

Send Inquiry Now

why choose newinteg valve ！

Use the power-plant service checklist below to prepare a complete technical enquiry.

Power Plants Industry
闸阀3

Full range of valve types​

For power-plant service, filter the valve shortlist by process duty, design standard, materials, pressure class and required inspection documents.

闸阀6

Novel valve type

Current product availability for power-plant service is confirmed from the approved technical enquiry and manufacturing review.

截止阀3

Customized valve types​

Fully customized valve according to customer needs!

You Need to Know About Valve Power Plants Industry！

tall ad 001
tall ad 001

Power Plants Industry

Classification of main valves and advice for their purchase in thermoelectric power plants
1
Main valve for thermal energy production closed
The main valves for closed thermal power generation include:
  • Globe valve / electric globe valve: is installed on the water and steam piping as an opening and closing device.
  • Electric gate / gate: is installed on the water and steam pipes as an opening and closing device.
  • The three-way valve is installed between the pressure gauge and the pressure gauge elbow for the pressure gauge.
  • Purge valve / electric purge valve: is installed in the lower header of the water-cooled boiler wall of the power plant and in the centralized downcomer as a boiler purge device.
  • Check valve: is installed on the steam and water piping as an installation device to automatically prevent backflow of fluid. Part of the function of a check valve can be classified as safety protection.
  • Steam trap: is installed in the drain piping and its function is to drain the condensate water, prevent or reduce the purge and rapid cooling of the equipment by the two-phase vapor-liquid flow and cause damage and vibration.
  • Water pressure test block valve: is installed on the steam pipes at the outlet of the boiler superheater and at the inlet and outlet of the heater as an isolation device when the system is subjected to a pressure test of the boiler water. The locking plate can be reinstalled for repeated use during the next water pressure.
2
Main valves for controlling the production of thermal energy
In the domestic electricity industry, it is customary to refer to the device that regulates the water flow rate and pressure as a “regulating valve” called “relief valve” or “control valve”, which is divided into relief valve pressure valve and pneumatic pressure relief valve which are installed in the system of:
  • Reduction of boiler temperature and pressure
  • Soot blowing
  • Heating the oil line
Aair preheatingIn the thermal system of thermal power plants, the bypass system of the steam turbine mainly consists of a regulating valve and a control device. In this system, the connection type, function selection and capacity have a great impact on the operation of the unit.
High pressure bypass system valves generally include valves for:
  • desuperheating
  • pressure reduction
  • water splash isolation
  • regulation of water sprays Low pressure bypass system valves generally include valves for:
  • temperature reduction
  • pressure reduction
  • regulation of water sprays
3
Main valves for the production of thermal energy for safety protection
The safety valve is the most common protection valve. Its function is to automatically discharge steam when the pressure exceeds the specified value to prevent the pressure from continuing to rise, in order to ensure the safety of the boiler and the steam turbine.
It is mainly installed in:
  • boiler drum
  • super-heater output
  • heater outlet
  • deaerator
  • top and bottom steam water side of the power plant boiler
  • industrial steam extraction pipeline
  • steam turbine heating pipeline
The electromagnetic vent valve is a protection device that prevents the steam pressure in the boiler from exceeding the specified value. It’s opened before the safety valve is activated to discharge excess steam to protect the normal operation of the boiler at the specified pressure. At the same time, the number of actions of the safety valve is reduced and the life of the safety valve is extended.
The inlet valve, (such as high addition valve, high addition valve or high addition three way valve), and the high pressure heater check valve are installed at the inlet and outlet of the high pressure heater respectively. These two valves are used together when the high pressure heater crashes, the inlet valve closes the high pressure heater inlet and the check valve closes the high pressure heater outlet. The feed water enters the boiler through the bypass, and the high-pressure heater stops working at this time. , so as to decompose the high pressure heater to ensure the normal water supply of the boiler. The pneumatic quick start valve is used in the oil, water and steam boiler system as a device for automatic and rapid fluid cutting.
The circulator outlet valve is installed at the boiler circulator outlet. The shut-off valve is installed on the superheater and post-heater water spray pipes and is used as a quick opening and closing device. These types of valves can be classified as safety protection or closure. Among them, pneumatic quick opening valves and locking valves have quick closing or opening characteristics.
The pressure relief valve is a device that prevents the fluid pressure in the equipment from rising beyond the permissible value and ensures the safe operation of the equipment.
The steam extraction check valve is used in steam extraction and heating systems of steam turbines to prevent the pressure in the steam turbine from being suddenly reduced when the steam turbine unit is suddenly losing load and steam in the steam extraction tube and each heater flows back into the steam turbine, causing the steam turbine blades to break. 

More Valve related articles

I believe you will not regret your choice​

Why choose Raymon valve?​

Customized on demand​

For power-plant duty, identify the water or steam condition, pressure-temperature class, cycling regime, drain or isolation function and plant material specification.

Valve quality​

For power-plant service, define the inspection and test plan before manufacture and review traceability, test results and release documents against the order. . ​

Professional Services

Send questions about power-plant service with the tag list or datasheet. Response timing and the responsible technical contact are confirmed during enquiry review.​

High and new technology​

For power-plant service, list required drawings, calculations, manuals, certificates and inspection records in the enquiry; document scope is confirmed before order acceptance.

R&D innovation​

Vendor capability for power-plant service should be verified through current facility evidence, procedures, qualified personnel, certificates and order-specific inspection records.


International Standard

Applicable design, material, testing and acceptance standards for power-plant service must be named on the datasheet or purchase specification; editions and deviations require confirmation.​

Send Inquiry Now

This page provides a practical starting point for power-plant service; final selection requires project data and engineering review.

REQUEST A QUOTE FOR MORE DETAILS
EXPLORE STORY

OEM & ODM Raymon valve Applications

D341H国标法兰式蝶阀Butterfly valve

xxxxxx炼金最佳

单击 “编辑” 按钮更改此文本。这是测试文本。

 

x

Get an Instant Quote
Send Your Inquiry Now
D341H国标法兰式蝶阀Butterfly valve

xxxxxx石油专用....

单击 “编辑” 按钮更改此文本。这是测试文本。

 

x

Get an Instant Quote
Send Your Inquiry Now
D341H国标法兰式蝶阀Butterfly valve

xxxxxx

单击 “编辑” 按钮更改此文本。这是测试文本。

 

x

Get an Instant Quote
Send Your Inquiry Now
D341H国标法兰式蝶阀Butterfly valve

xxxxxx

单击 “编辑” 按钮更改此文本。这是测试文本。

 

x

Get an Instant Quote
Send Your Inquiry Now
D341H国标法兰式蝶阀Butterfly valve

xxxxxx

单击 “编辑” 按钮更改此文本。这是测试文本。

 

x

Get an Instant Quote
Send Your Inquiry Now

want totalk
with us?

Leave your details and one of our experts will contact you!

Priority commercial page

Use system transients and operating duty to define power-plant valves

Power services combine high-energy steam and water with large cooling circuits and cycling auxiliaries. Startup, shutdown and trip cases can govern selection.

Who this page is for

Power engineers, EPC package teams and plant maintenance buyers.

Primary search task

Power-generation valve application evaluation. Search-volume data is not asserted without connected GSC or keyword-tool evidence.

DecisionWhy it changes the offerRecommended review routeEvidence to request
SystemMain steam, feedwater, condensate and cooling water require different architectures.Classify the valve by system and function.Heat balance, P&ID and line list
Thermal transientRapid heating, cooling and pressure changes affect clearances and seals.Define startup, shutdown and upset rates.Operating procedure and design cases
High-energy pressure dropNoise, erosion, flashing and cavitation can damage trim and pipe.Calculate every bypass and control case.Sizing and velocity review
Actuation and protectionFail action and stroke time affect turbine/boiler protection.Coordinate valve package with plant logic and utilities.Cause/effect and actuator calculation
Application decision patterns

Three realistic contexts to test the specification

These are illustrative engineering decision scenarios—not named customer projects, installed-performance claims or promises of suitability.

Main-steam isolation

Decision pressure: High temperature and thermal binding govern pressure-boundary and gate design.
Engineering route: Review qualified gate/globe construction and warm-up practice.

Final rating and materials follow project conditions.
Boiler-feed pump minimum flow

Decision pressure: High differential pressure can create cavitation and severe vibration.
Engineering route: Use case-specific control-valve staging and outlet review.

Trim selection requires full hydraulic data.
Cooling-water pump protection

Decision pressure: Large flow and transients affect butterfly and check-valve behavior.
Engineering route: Coordinate head loss, closure response and surge.

System analysis determines closure requirements.
Gate valves →Control valves →Discuss power project →
E-E-A-T and approval evidence

Evidence that should exist before technical approval

System and tag functionStartup/shutdown/trip casesPressure-temperature and thermal-rate dataSizing/noise/velocity calculationsActuator and interlock basisMaterial, NDE and pressure-test evidence
Content responsibility and limits. This page supports early technical and commercial evaluation. Raymon Valve’s content team maintains the public guidance; the responsible project engineer, purchaser and quality reviewers must approve order-specific construction, calculations, standards/editions, materials, tests and deviations. Application patterns above are not customer case studies. Review the technical content and evidence policy. Updated 29 July 2026.
Next decision

Send the system, transient cases and operating sequence

Mark confirmed inputs, preliminary assumptions and open questions separately so the first review can focus on risk.

Request Power Valve Review
en_USEnglish
de_DEGerman arArabic fr_FRFrench es_ESSpanish it_ITItalian pt_BRPortuguese ru_RURussian en_USEnglish
Scroll to Top