20Cr1Mo1VNbTiB Customized Steam turbine main steam spherical valve seat

• Certification: ISO
• Color: Customized
• Customized: Customized
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: Customized
• Standard: National
• Type: Connection
• Material: Alloy
• Industry: Power Plants
• Condition: Brand New
• Surface: Anti-Rusting
• Size: Customized
• Delivery: by Sea/Air
• Packaging: Wooden Box/Cartons
• Processing: Drawing Basis
• Transport Package: Cartons
• Specification: Customized
• Trademark: Yoyik
• Origin: Deyang, China
• Production Capacity: 10000 Pieces/Year
• Package Size: 60.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 10.000kg

Product Description

Product Description

The main steam valve seat has high load-bearing capacity and sealing performance, which is the key to ensuring the normal operation of the main steam valve. The pressure sealing steam liner of the valve seat can limit axial movement and form a seal to eliminate steam leakage from the shaft. When opening and closing the main steam valve, use a steam relief valve (unloading valve) to release the steam pressure at the pressure seal, in order to reduce the wear and resistance of the spherical base.

The valve seat of the reheat main steam valve adopts an equally thick ball cover with a central rod. During assembly, the center rod passes through the rocker arm hole and is locked in place with a nut. The contact surface between the rocker arm, valve disc, and nut is spherical, and there is a gap to allow rotation. The sealing surface of the valve disc is spherical, and the valve seat is a circular ring surface. When the valve disc is closed and in contact with the valve seat, the movable connection between the valve disc and the rocker arm allows the valve disc to be correctly positioned to ensure a complete fit of the sealing surface.

The valve seat (spherical base) of the main steam valve of the steam turbine has the characteristics of simple structure, good sealing performance, and high load-bearing capacity, providing strong support for ensuring the normal operation of the main steam valve.

 

Product size	Customizable to drawings or samples
Optional Materials	15CrMoA
	20Cr1Mo1VNbTiB
	25Cr2Mo1VA
	25Cr2MoVA
	35CrMoVA
	40CrNiMoA
	45Cr1MoV
	2Cr11Mo1NiWVNbN
	2Cr12NiMo1W1V
	1Cr11Co3W3NiMoVNbNB
	1Cr18Ni9Ti
Heat treatment	According to the drawing requirements
Accuracy	0.02mm
Special processes	According to the drawing requirements
Quality inspection	Non destructive testing

Product Features:

-High load-bearing capacity: The valve seat adopts an equally thick ball cover design with a central rod, and the ball surface has high load-bearing capacity, which can withstand the effects of high pressure difference and high-speed steam flow.

-Good sealing performance: The sealing surface of the valve disc is spherical, and the valve seat is annular. When the valve disc closes and comes into contact with the valve seat, the movable connection between the valve disc and the rocker arm allows the valve disc to be correctly positioned to ensure a complete fit of the sealing surface and zero leakage.

-Simple structure: The valve seat has a simple structure, which is easy to maintain and replace, reducing the maintenance cost of the equipment.

-Wear resistance: When opening and closing the reheat main steam valve, a steam relief valve is used to release the steam pressure at the pressure seal, in order to reduce the wear and resistance of the valve seat.

 

Wide Application:

-Steam turbine reheat system

-Thermal power plants in the power industry

-Petrochemical industry

-Other industrial sectors

 

Detail Photos

 

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IP DIAPHRAGM STAGE-1
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LP Main Steam Valve

 

Packing and Shipping

Standard & solid packaging ensures your goods safety.

Various professional packages at your choice.


Multiple choice of reliable and cost-effective shipping methods available.

Company Profile

Dongfang Yoyik Engineering Co., Ltd is located in Deyang, Sichuan, China's heavy equipment base, was founded in 2004. The company is a professional power plant spare parts manufacturer and supplier. Our products are applicable for many thermal power plants, hydropower plants, metallurgic industrial power plant, cement plant power house, aluminum plant power house, and coal mill power plants.



From advanced precision electric elements and components to highly-customized metal items, you can find all the needed for a power plant from Yoyik.

Yoyik is the Exclusive Agent of W.M. Nugent CO Inc for selling Nugent filter elements and filtration system products in China. The company also has great advantages in of many hydraulic products, including pumps, valves, sealing materials, etc. the brands include Eaton, Vickers, Moog, star, copaltite, temp-tite, 707, etc. 

 

 

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FAQ

- ORDER NOTES -

√ Model Selection
Before purchasing, please ensure that the model specifications you provide are complete or that the drawings have been drawn so that you can provide timely and accurate quotations.

√ Quality Assurance
We promise to provide high-quality products and after-sales service. If there are any quality issues, please contact us promptly.

√ Secure Transactions
We sell on MIC, provide a secure and reliable trading environment, and accept multiple payment methods to facilitate your purchase.

 

- FAQ -

- Are you trading company or manufacturer?
We are factory located in Deyang, China.

- How long is your delivery time?
Generally it is 2-5 days if the goods are in stock. Or it is 7-21 days if the goods are not in stock, it is according to quantity.

- Do you provide samples? Is it free or extra?
Sorry we do not offer samples.

- What price terms do you accept?
Our company can accept all trading manners, eg. EXW, FOB, CIF etc

- What payment terms do you accept?
We accept T/T.