SKU KH-501B Category 3-part ball valve - modular

Ball valve VL-501B & VL-521B

3-part, stainless steel, nominal pressure PN63, weld-on ends, can be automated

Armaturenfabrik Valve 3-part ball valve mounting flange mounting flange automatable actuator stainless steel butt weld ends VL 521B-EPI modular design

Armaturenfabrik_Armatur_3-piece ball valve manual operation stainless steel butt weld ends VL 501B-EPI modular design

Product information

The VL-501B and VL-521B ball valves from EPI are 3-piece stainless steel ball valves with welding ends for demanding industrial applications. They offer full bore performance, high pressure resistance and are ideal for automation with pneumatic or electric actuators thanks to the ISO 5211 mounting flange.

Special features

3-part stainless steel body (1.4408)
Full bore – minimum pressure loss
Weld-on ends according to DIN EN 12627
Nominal pressure: PN63
Mounting flange to ISO 5211 (VL-521B only) – for direct automation
Anti-blowout selector shaft – increased safety
Temperature range: -10 °C to +200 °C
FDA and EG1935 compliant, PED, TA-Luft
Antistatic version for hazardous areas (type VLA-521B)

Advantages

Weld-on ends for secure and tight pipe connections
ISO 5211 flange (VL-521B) for simple automation
FDA and EG1935 compliant – suitable for the food and chemical industries
Antistatic version for hazardous areas
High temperature resistance up to +200 °C
Maintenance-friendly 3-part construction

Areas of application

Chemical industry
Food and beverage production
Water and steam systems
Oil and fuel lines
Automated systems with pneumatic or electric actuators

Feature	VL-501B	VL-521B
Nominal size	DN 8 – DN 100	DN 8 – DN 100
Nominal pressure	PN 63	PN 63
Temperature range	-10 °C to +200 °C	-10 °C to +200 °C
Body	Stainless steel 1.4408	Stainless steel 1.4408
Ball seat	PTFE	PTFE
Spindle seal	Viton	Viton
Automation	Manual operation	Via mounting flange / body flange ISO 5211 flange (F03-F10)

Modular ball valve and accessories from EPI

The EPI ball valve series is based on a modular design that offers you a choice of three connection types:

Threaded connection (types VL-501T & VL-521T)
Flanged connection (types VL-521F & VL-540F)
Weld-on ends (types VL-501B & VL-521B)

All variants are available as manually operated versions or with ISO 5211 mounting flange for automation.

Your advantages:

Standardized modular platform – fewer spare parts, easy maintenance
Full throughput for minimum pressure loss
Nominal pressure up to PN63 (thread/butt weld ends) and PN40 (flange)
Temperature range: -10 °C to +200 °C
FDA and EG1935-compliant, PED, TA-Luft, antistatic option for hazardous areas

VL-501T

Connection type
Thread
Operation
Manually operated
Nominal pressure
PN 63
Temperature
-10°C to +200°C
Nominal size
DN 8 – DN 100

VL-521T

Connection type
Thread
Operation
Can be automated
Nominal pressure
PN 63
Temperature
-10°C to +200°C
Nominal size
DN 8 – DN 100

VL-521F

Connection type
Flange
Operation
Manually operated
Nominal pressure
PN 40
Temperature
-10°C to +200°C
Nominal size
DN 15 – DN 100

VL-540F

Connection type
Flange
Operation
Can be automated
Nominal pressure
PN 40
Temperature
-10°C to +200°C
Nominal size
DN 15 – DN 100

VL-501B

Connection type
Weld-on ends
Operation
Manually operated
Nominal pressure
PN 63
Temperature
-10°C to +200°C
Nominal size
DN 8 – DN 100

VL-501B

Connection type
Weld-on ends
Operation
Can be automated
Nominal pressure
PN 63
Temperature
-10°C to +200°C
Nominal size
DN 8 – DN 100

Electric or pneumatic automation for ball valves

Maximize the functionality of your ball valves with pneumatic or electric actuators. Thanks to ISO 5211 mounting flanges, spindle extensions and mounting bridges, our valves are easy to automate – for precise control in industrial plants.

Your advantages:

Direct drive connection via ISO 5211 flange
Flexible adaptation with spindle extensions and couplings
Pneumatic and electric part-turn actuators for every application
Ideal for process automation, remote control and safety
Compatible with heating jacket fittings and special solutions

Heating jacket & leakage jacket for ball valves

Optimize your processes with heatable valves: heating jackets, leakage jackets or double jacket versions ensure temperature-stable media flow, prevent solidification and enable safe and efficient production processes. Ideal for ball valves, valves, filters and strainers in the chemical, food and process industries.

Your advantages

Uniform heat distribution for liquid media
Individual adaptation to valves and pipelines
Suitable for steam, thermal oil or hot water
Optionally with weld-on ends, flanged connection or special design
Increased safety due to leakage jacket

Spindle extensions and stem extensions for ball valves

Increase the user-friendliness of your ball valves with stem or stem extensions. This modification is ideal for isolated valves or valves that are difficult to access and enables convenient manual operation or the connection of pneumatic and electric actuators.

Technical details:

Material: Stainless steel or galvanized steel for high corrosion resistance
Lengths: Individually adaptable for every installation situation
Couplings & adapters: Compatible with ISO 5211-
Assembly bridges for automation
Gaskets: Optionally with O-ring for additional safety
Temperature range: up to +180 °C (depending on valves and medium)
Installation: Simple retrofitting without replacing the valves

Individual insulation for all ball valves

For all our ball valves – whether with or without heating jacket, whether in manual mode or automated by actuators – we offer the right insulation, individually manufactured.

Insulation can be implemented with the high-quality IFS-Plast25 insulating jackets and insulating pads, for example. This solution ensures optimum energy efficiency and safety in your process.

Your advantages at a glance:

Energy savings through reduced heat loss
Safe operation thanks to reliable insulation
Individual adaptation to every valve and application
Easy assembly and disassembly for maintenance and service
Compatible with heating jacket options and automation systems

FAQs

What nominal pressure do the ball valves have?

Both types are designed for PN63.

Can the ball valves be automated?

VL-521B can be automated via ISO 5211 mounting flange, VL-501B is designed for manual operation.

What approvals do the products have?

FDA, EG1935, PED, TA-Luft, ISO9001.

What media are the ball valves suitable for?

Water, oil, gas, steam, chemicals, food media.

Are there special versions?

Yes, e.g. with sealing device, antistatic ball or special gaskets for steam.

Insulation – In combination with fittings and containers

Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

Custom-made insulating pads to fit your fitting
Heating jacket integration – reliable even under extreme conditions
Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
Special solutions for high temperatures – for power plants, the chemical and process industries

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Ball valve VL-501B & VL-521B