ALLSEN Valve

  1. Precision-Engineered Valves for Critical Applications

ALLSEN Valve is an industrial valve manufacturer that delivers precision-engineered flow control solutions for the world's most demanding industries — from oil & gas pipelines to power generation and petrochemical processing. Cna I type and is it saving

Built to Perform Under Pressure

56"
Max Valve Size (NPS)
2500
Max Pressure Class (ASME)
8
Industries Served
600°C
Max Temperature (°C)

Comprehensive Valve Solutions

From high-pressure pipeline ball valves to specialty knife gate valves for slurry handling, ALLSEN offers a complete range of flow control products engineered to meet the most stringent international standards.

Ball Valves

Trunnion mounted, floating, and fully welded designs. NPS 1/2–56, ASME Class 150–2500. Ideal for pipeline, process isolation, and underground installations.

Butterfly Valves

Triple offset metal seated and high performance double offset designs. DN 50–3000 with temperature capability up to 600°C. Fire-safe capable with bubble-tight shutoff.

Gate & Globe Valves

Cast steel gate valves (API 600) with full-bore flow path and globe valves (BS 1873/API 623) with excellent throttling capability. Bellows seal options available. NPS 2–24.

Check Valves

Dual plate wafer (API 594) and swing check valves. NPS 2–48 with compact fast closure and low pressure drop for reliable backflow prevention.

Knife Gate Valves

Specialty knife gate valves with shearing action for solids handling. Full-bore design ideal for slurry, pulp, and wastewater applications.

Custom Solutions

Project-specific configurations with special materials and coatings (FBE/3LPE/3LPP). Complete actuation packages — pneumatic, electric, and hydraulic.

Trusted Across Critical Industries

ALLSEN valves are engineered to perform in the most demanding environments — from high-pressure offshore platforms to corrosive chemical processing plants.

Oil & Gas
Transmission, gathering, terminals, and refineries. Pipeline-grade valves with API 6D certification and NACE MR0175 compliance for sour service.
Petrochemical & Chemical
Process isolation and flow control for corrosive media. Special alloy and coating options for aggressive chemical environments.
Power Generation
High-temperature steam systems and power plant applications. Triple offset butterfly valves rated to 600°C.
Water & Wastewater
Treatment plants and distribution systems. Butterfly and knife gate valves for clean water and slurry applications.
Mining & Slurry
Heavy-duty knife gate valves with shearing action for solids handling in mining and mineral processing.
Pulp & Paper
Full-bore knife gate valves designed for fibrous media and high-viscosity pulp applications.
District Energy & HVAC
Fully welded ball valves for buried district heating and cooling systems. Zero body flange leak paths.
Marine & Offshore
Corrosion-resistant valve solutions for offshore platforms, shipboard systems, and subsea applications.

Trusted by Engineers Worldwide

Senior Project Engineer
ALLSEN's trunnion mounted ball valves performed flawlessly in our high-pressure gas transmission project. Their engineering team provided invaluable support during valve selection and sizing.
Procurement Manager
The quality documentation and third-party certifications from ALLSEN gave us complete confidence in the product. Their MTRs and ITPs exceeded our expectations.
Plant Operations Director
We've standardized on ALLSEN butterfly valves across our petrochemical facility. The triple offset design handles our high-temperature applications with zero leakage.

Common Questions About ALLSEN Valves

Find answers to the most frequently asked questions from engineers and procurement professionals.

What size range do ALLSEN ball valves cover?
ALLSEN manufactures ball valves from NPS 1/2 up to NPS 56 (DN 1400). Our trunnion mounted ball valves cover NPS 2–56 with pressure ratings from ASME Class 150 to 2500, while floating ball valves are available in NPS 1/2–12 for process isolation applications.
Are ALLSEN valves suitable for sour service applications?
Yes, ALLSEN valves are available with full NACE MR0175/ISO 15156 compliance for sour service applications. This includes specialized material selection and testing to ensure safe, reliable performance in hydrogen sulfide environments commonly found in oil and gas operations.
What certifications do ALLSEN valves carry?
ALLSEN valves are manufactured to major international standards including API 6D, API 598, API 600, API 594, and API 623. We also comply with ASME, BS 1873, and EN standards. Fire-safe testing packages and fugitive emission certifications are available upon request.
Can ALLSEN provide custom actuation packages?
ALLSEN offers complete actuation packages including pneumatic, electric, and hydraulic actuators. Our engineering team works with you to specify the right actuator, positioner, and control system for your application, delivered as a fully tested, ready-to-install assembly.
What coatings are available for buried pipeline valves?
For buried and underground installations, ALLSEN offers FBE (Fusion Bonded Epoxy), 3LPE (Three-Layer Polyethylene), and 3LPP (Three-Layer Polypropylene) coating systems. Our fully welded ball valves with zero body flange leak paths are specifically designed for these applications.

Ready to Specify Your Next Valve?

Our application engineers are ready to help you select the right valve for your project. From sizing calculations to material compatibility guidance, we provide the technical support you need to make confident decisions.