Description

Technical Parameters

Product Introduction

The Pressure Seal Gate Valve is a self-sealing gate valve designed for high-temperature and high-pressure operating conditions; it achieves reliable shut-off control through a pressure-energized sealing mechanism and is widely utilized in demanding environments such as power plant boilers, petrochemical facilities, and high-pressure steam systems.

Technical Parameters

Model:PDB200HP OR OEM

OS &Y, Rising Stem

Flexible Wedge

Seat surfaces of the body and disc in all sizes

Are hard faced with stellite

Body seat rings in all sizes

Are sealed-welded into the body

Design with a pressure sea bonnet

Self-tightening gasket

Hard faced backseat on the bonnet

Class 900≥10", Class 1500≥8", Class2500≥8"

Available with gear-operated.

Anti-friction bearings are used on Class 900,1500≥3", Class 2500, all sizes.

Basic Design: ANSI B16.34

Face to Face: ANSI B16.10

End to End: ANSI B16.10

End Flange: ANSI B16.5

BW End: ANSI B16.25

Test and Inspection: API-598

Manufacturing to NACE MR0175 on request

Core Advantages

Pressure-Energized Sealing: Features a self-sealing structure where the seal becomes tighter as system pressure increases, effectively eliminating the risk of high-pressure leakage.

Suitable for Ultra-High-Pressure Conditions: The valve body is designed in accordance with ASME B16.34 standards, enabling long-term, stable operation under exposure to high-pressure steam and high-temperature media.

Stable and Reliable in High-Temperature Environments: Ideal for use in high-temperature steam and hot oil systems; maintains structural stability and remains free from deformation even under extreme high-temperature operating conditions.

Customization Capabilities

Size Range	2"–24" (or larger sizes available upon request)
Pressure Rating	150LB–2500LB / Class 150–2500
Material Options	WCB / WCC / WC6 / WC9 / F22 / F91, etc.
Connection Type	Flanged / Butt-Weld
Actuation	Handwheel / Gearbox / Electric Actuator
Structural Design	Optimized Pressure Self-Sealing Structure
Applicable Standards	ASME B16.34 / API / NACE (Optional)

Factory Capabilities

01/

Specializing in the manufacture of high-pressure valves, with a complete production line spanning casting, machining, and assembly.

02/

Equipped with CNC precision machining centers to ensure the machining accuracy of high-pressure valve bodies.

03/

Comprehensive quality control throughout the entire process, including 100% pressure and leak testing.

04/

Compliant with ASME, API, and international power plant-grade standards.

FAQ

Q: What is the typical lead time?

A: Generally, it takes 15–45 days; the exact timeframe is confirmed based on product specifications and order quantity. Rush production can be arranged for large-volume orders.

Q: Do you have stock available?

A: We maintain inventory for certain standard specifications; however, most items are manufactured-to-order to ensure precise alignment with specific dimensions and operating conditions.

Q: How is export packaging handled?

A: We utilize standard wooden crates featuring shock-resistant and moisture-proof packaging, suitable for both sea and air freight to ensure safe transit.

Q: What shipping methods are available?

A: We support shipping via sea, air, rail, and express courier services. We can ship to any port designated by the customer.

Q: What happens if the goods are damaged during transit?

A: We conduct rigorous packaging inspections prior to shipment; in the event of transit damage, we provide assistance and support for filing insurance claims.

Q: Can you provide technical documentation?

A: We can provide technical drawings, dimension charts, material certificates, and test reports to facilitate engineering reviews and approvals.

Q: Do you support long-term supply agreements?

A: We support stable, long-term supply relationships. Framework agreements can be signed to guarantee consistent pricing and delivery schedules.

Q: How can I avoid selecting the wrong model?

A: Simply provide us with your operating parameters, and our engineers will assist you in confirming the correct model to prevent selection errors.

Q: How is after-sales support handled?

A: We provide technical assistance and a dedicated channel for addressing feedback and issues, ensuring a rapid response to all project-related requirements.

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