DIN/EN Stainless Steel Metal Seated Floating Ball Valve Anti Blow Out Stem

Core product positioning

A stainless steel floating ball valve strictly manufactured in accordance with DIN/EN European standards, featuring a metal hard sealing pair and an intrinsically safe anti-blowout valve stem design. This product is specially designed for harsh working conditions such as high temperatures, wear and hazardous media. While ensuring outstanding sealing performance, it offers the highest level of operational safety.

Details of technical specifications

Core design features

1. Intrinsically safe anti-blowout valve stem

T-shaped structure valve stem: The connection between the valve stem and the ball adopts a large-sized T-shaped structure design. Even if the valve cavity is abnormally overpressurized or the packing cover fails, it can ensure that the valve stem will not be blown out of the valve body by the medium pressure

Double safety guarantee: The contact surface between the valve stem step and the valve body is precisely processed to form a mechanical stop, providing a second layer of protection

Low-friction design: The surface of the contact area between the valve stem and the packing has undergone special treatment to ensure good sealing while maintaining low operating torque

2. High-performance metal hard seal

Multi-layer composite structure

Base layer: Stainless steel substrate

Transition layer: Nickel-based alloy buffer layer

Working surface: tungsten carbide/chromium carbide metal ceramic layer

Surface hardness: The hardness of the sealing surface can reach HRC 68-72

Self-grinding feature: The ball and the valve seat have a self-grinding effect during the opening and closing process, ensuring long-term sealing reliability

3. Strictly comply with DIN/EN standards

Dimensional standardization: Flange spacing, structural length, etc. fully comply with DIN EN 558 series standards

Pressure reference: The pressure-temperature rating strictly follows the DIN EN 12516 standard

Test specification: Conduct strict pressure tests and performance verification in accordance with DIN EN 12266-1 standard

4. Optimization of the floating ball structure

Enhanced sealing force: Under the action of medium pressure, the ball automatically presses towards the valve seat at the outlet end, forming a self-enhanced seal

Bidirectional sealing capability: The carefully designed preload ensures that the valve achieves reliable bidirectional sealing

Low-torque bearings: Utilizing bearing materials with low friction coefficients, they significantly reduce operating torque

Detailed explanation of performance advantages

Safety performance

Absolute valve stem safety: The anti-blowout design completely eliminates the risk of valve stem flying out, protecting the safety of personnel and equipment

Fire safety: The metal sealed structure is naturally fireproof and certified by API 607

Anti-static design: Built-in anti-static device to ensure that the resistance value between the ball and the valve body meets the standard requirements

Durability performance

High-temperature resistance: The metal sealing structure can withstand high-temperature working conditions above 550℃

Wear-resistant and corrosion-resistant: The super-hard sealing surface combined with the stainless steel valve body can withstand particle wear and medium corrosion

Long-life design: The service life under harsh working conditions is 3 to 5 times that of soft-sealed valves

Maintain advantages

Modular design: Key components adopt modular design, making maintenance and replacement convenient

Online maintenance: Some structures support online maintenance to reduce downtime

Standardized spare parts: Compliant with DIN/EN standards, spare parts are easy to obtain and have strong interchangeability

Typical application fields

Chemical Engineering and Petrochemical Industry

High-temperature oil and gas pipeline

Catalyst conveying system

Strong solvent medium control

Energy and Electricity

Power station steam system

Boiler feed water pipeline

High-temperature flue gas treatment

Metallurgy and Mining

Pulverized coal conveying pipeline

Pulp control system

High-temperature gas treatment

Special industry

Waste incineration for power generation

High-temperature heat transfer oil system

Harsh working condition process pipelines

Selection and Configuration Guide

Standard configuration

Anti-blowout valve stem system

Metal hard sealing pair

Anti-static device

Fire safety design

DIN standard flange connection

Optional configuration

Extended valve cover: Used for high or low temperature insulation

Actuator: Manual gearbox/pneumatic/electric actuator

Locking device: Used for safely locking the open and closed states of the valve

Special coating: Anti-corrosion for the inner cavity or special treatment for the outer surface

Drainage/Exhaust: Valve body discharge interface

Summary of technical value

The DIN/EN standard stainless steel metal hard seal anti-blowout valve stem floating ball valve, through the perfect combination of intrinsically safe design and the European standard system, provides industrial users with

The highest safety level: The anti-blowout valve stem design completely eliminates major safety hazards

Superior adaptability to working conditions: The metal sealing structure can withstand extreme temperatures and abrasive media

Standard compliance guarantee: Fully compliant with DIN/EN standards to ensure product quality and interchangeability

Long service life: High-quality materials and precise manufacturing ensure long-term reliable operation

This product is particularly suitable for critical application points with extremely high requirements for safety and reliability, such as high temperature, high pressure, and hazardous media. It is a safety guardian for high-risk working conditions in process industries.