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Application fields:
Topside
Transportation
Power, Renewables & Hydrogen
Carbon Capture
LNG & Cryogenic Services

ALL PRODUCTS  

BALL VALVES

TRUNNION INSTRUMENTATION DBB

API 6D compliant, it ensures reliable isolation, zero leakage, and maximum safety in high-risk applications across energy sectors.

Trunnion instrumentation DBB 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 INSTRUMENTATION DBB

API 6D compliant, it ensures reliable isolation, zero leakage, and maximum safety in high-risk applications across energy sectors.

Trunnion instrumentation DBB ball valve by Viar Valvole
Viar Valvole — sf lb technical features
TECHNICAL FEATURES

TRUNNION INSTRUMENTATION DOUBLE BLOCK & BLEED

Designed in accordance with API 6D standards, it delivers high performance up to ANSI Class 4500. Fully customizable, it combines broad dimensional and connection versatility with engineering reliability, making it ideal for critical applications in the most demanding energy sectors.

Design

2 or 3 pieces / Bolted Body

Design

2 or 3 pieces / Bolted 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
Special Applications

This valve is also available for special services in full compliance with API 6A standards.
See the dedicated API 6A technical specifications

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
Special Applications

This valve is also available for special services in full compliance with API 6A standards.
See the dedicated API 6A technical specifications

KNOWLEDGE APPLIED

Trunnion instrumentation DBB ball valve by Viar Valvole
Trunnion instrumentation DBB ball valve by Viar Valvole
Trunnion instrumentation DBB ball valve by Viar Valvole
Trunnion instrumentation DBB ball valve by Viar Valvole
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?

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CONTACT

Want to know more?

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