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CONTACTS
Viar Valvole logo
Application fields:
Topside
Transportation
Power, Renewables & Hydrogen
Carbon Capture
LNG & Cryogenic Services

ALL PRODUCTS  

BALL VALVES

TRUNNION
FULLY WELDED

Our fully welded trunnion ball valve offers maximum strength, zero external leakage, and full API 6D compliance. Built for underground and critical service, it ensures long-term reliability in the most demanding energy environments.

Fully welded trunnion ball valve by Viar Valvole
Viar Valvole industrial ball valves
Application fields:
Topside
Transportation
Power, Renewables & Hydrogen
Carbon Capture
LNG & Cryogenic Services

ALL PRODUCTS  

BALL VALVES

TRUNNION
FULLY WELDED

Our fully welded trunnion ball valve offers maximum strength, zero external leakage, and full API 6D compliance. Built for underground and critical service, it ensures long-term reliability in the most demanding energy environments.

Fully welded trunnion ball valve by Viar Valvole
Viar Valvole — sf lb technical features
TECHNICAL FEATURES

TRUNNION FULLY WELDED

Designed in accordance with API 6D, it ensures maximum structural integrity through its fully welded body, eliminating potential leak paths. Built for long-term durability in harsh conditions, it provides continuous reliability in buried installations, high-pressure pipelines, and aggressive environments.

Design

2 or 3 pieces / Welded body

Design

2 or 3 pieces / Welded body

Class / Size

ANSI/ASME classes from 150 to 2500
Sizes from 1/2” to 60” according to API 6D
Special bore diameters and/or design pressures available upon request

Class / Size

ANSI/ASME classes from 150 to 2500
Sizes from 1/2” to 60” according to API 6D
Special bore diameters and/or design pressures available upon request

Material Selection

Carbon Steel, High resistance Carbon Steel
Low Alloy Steel and High Alloy Steel
Austenitic Stainless Steel, Super Austenitic Stainless Steel
Duplex Stainless Steel, Super Duplex Stainless Steel
Nickel Alloy
Titanium Alloy
Forged or Casting

Material Selection

Carbon Steel, High resistance Carbon Steel
Low Alloy Steel and High Alloy Steel
Austenitic Stainless Steel, Super Austenitic Stainless Steel
Duplex Stainless Steel, Super Duplex Stainless Steel
Nickel Alloy
Titanium Alloy
Forged or Casting

Trim Construction

Direct Trunnion / Plate Supported Ball with Floating Seats spring energized seats
Single or Double Block & Bleed configuration in closed or open/closed position

Trim Construction

Direct Trunnion / Plate Supported Ball with Floating Seats spring energized seats
Single or Double Block & Bleed configuration in closed or open/closed position

Ball/Seat Sealing

Spring energised seats
Soft seated with soft insert bonded in the metal seat ring
Metal to Metal seated with carbide coating on ball and seat

Ball/Seat Sealing

Spring energised seats
Soft seated with soft insert bonded in the metal seat ring
Metal to Metal seated with carbide coating on ball and seat

Over-Pressure Relief

Self-Relieving or Double Piston Effect Seats with Relief Valve

Over-Pressure Relief

Self-Relieving or Double Piston Effect Seats with Relief Valve

End connections

RF, RTJ, BW, HUB, Compact Flanges, Special Flanges

End connections

RF, RTJ, BW, HUB, Compact Flanges, Special Flanges

Seals

Elastomer O-Rings, PTFE V-Pack or Spring Energized Lip Seals, BX style metal rings

Seals

Elastomer O-Rings, PTFE V-Pack or Spring Energized Lip Seals, BX style metal rings

Fire Safe Gaskets

Graphite with corrosion inhibitor or Spiral Wounds

Fire Safe Gaskets

Graphite with corrosion inhibitor or Spiral Wounds

Operation

Lever or Gearbox, Hydraulic or Pneumatic Actuator, Electric Motor

Operation

Lever or Gearbox, Hydraulic or Pneumatic Actuator, Electric Motor

RELIABILITY &
EXPERIENCE

Viar Valvole — contract
Performance Guarantee

Each valve is internally engineered and has successfully passed rigorous testing at every stage to ensure maximum reliability, in compliance with any international standard and client requirements.

Viar Valvole — contract
Customization

Thanks to our extensive know-how, we can design each product based on the specific needs of the customer and the application sector.

RELIABILITY &
EXPERIENCE

Viar Valvole — contract
Performance Guarantee

Each valve is internally engineered and has successfully passed rigorous testing at every stage to ensure maximum reliability, in compliance with any international standard and client requirements.

Viar Valvole — contract
Customization

Thanks to our extensive know-how, we can design each product based on the specific needs of the customer and the application sector.

Viar Valvole — sf lb technical features
SERVICES

CUSTOM PRODUCTS
AND SUPPORT AT EVERY STAGE

In addition to valve manufacturing, we offer a full range of services supporting the entire product lifecycle — from design and commissioning to on-site maintenance.

Project
Consulting

We provide comprehensive support to EPCs and end users, simplifying complexity at every stage, from design to post-order

Fully custom design &
engineering

Each valve is designed in-house and every solution is tailored to the specific needs of each customer

Special tests and
materials

We perform custom testing and select materials based on application and technical specifications

Commissioning and site
services

Our support continues from delivery through installation, including maintenance and long-term service contracts

Project
Consulting

We provide comprehensive support to EPCs and end users, simplifying complexity at every stage, from design to post-order

Fully custom design &
engineering

Each valve is designed in-house and every solution is tailored to the specific needs of each customer

Special tests and
materials

We perform custom testing and select materials based on application and technical specifications

Commissioning and site
services

Our support continues from delivery through installation, including maintenance and long-term service contracts

Viar Valvole — sf market
WE’VE SIMPLIFIED COMPLEXITY FOR

Subsea 7BonattiSaipemMaire TecnimontSubsea 7BonattiSaipemMaire Tecnimont

SamsungBPChevronEniKuwait EnergySamsungBPChevronEniKuwait Energy

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CONTACT

Want to know more?

Fill in the form below, we are at your disposal.

Viar Valvole — divider
CONTACT

Want to know more?

Fill in the form below, we are at your disposal.