AS-Schneider Vietnam

About AS-Schneider

Armaturenfabrik Franz Schneider GmbH + Co. KG, trading as AS-Schneider, is a family-owned German valve manufacturer headquartered in Nordheim, Baden-Wuerttemberg. With roughly 400 employees and more than a century and a half of metalworking heritage, AS-Schneider has grown into one of the world’s leading producers of instrumentation valves, manifolds, monoflanges and Double Block & Bleed (DBB) piping ball valves – and is the global market leader for valves on Large-Bore Diesel Engines used in ship propulsion and stationary power generation.

The company runs production plants in Germany and Romania and operates sales subsidiaries in the USA (Houston), India (Coimbatore), Singapore, the UAE (Dubai/JAFZA) and Romania, supported by partner networks in more than 20 countries. AS-Schneider has been supplying valves compliant with 100% hydrogen service for over 25 years and offers the full portfolio according to ISO 15848-1 and the German TA-Luft 2021 amendment for fugitive emissions.

Why Engineers Choose AS-Schneider

Product Portfolio

AS-Schneider’s product offering covers four primary lines plus dedicated portfolios for nuclear service, hydrogen and special media. Nhan Viet ICS JSC supplies all of the following families – from individual valves to fully engineered hook-up assemblies – direct ex-Germany or ex-stock when available.

Instrumentation Valves & Manifolds

The broadest franchise in the AS-Schneider catalogue – the building blocks of every pressure, level, flow and temperature instrumentation hook-up. All variants are available as fugitive-emission certified (ISO 15848-1 / TA-Luft 2021) and as 100% hydrogen-compliant designs.

E Series Manifolds & Direct-Mount Variants

The flagship 2-, 3- and 5-valve manifold family for connecting differential-pressure transmitters and gauges, available as remote-mount and direct-mount (wafer, traditional and integral) styles. Standard rating 420 bar / 6,092 psi; 689 bar / 10,000 psi on request.

Block & Bleed Manifolds

2-valve manifolds – S, PL (L-shaped) and PY (Y-shaped) Types. Rated 420 bar standard.

Double Block & Bleed Manifolds

3- and 5-valve DBB manifolds for safe pressure-transmitter isolation and bleeding.

Remote Mounted Manifolds

For impulse-line installations with the transmitter mounted separately from process tap.

Direct Mount – Wafer Style

Compact wafer-style direct-mount manifold for transmitters with IEC 61518 flanged inlet.

Direct Mount – Traditional Style

2-, 3- and 5-valve direct-mount with traditional H-pattern for retrofit projects.

Direct Mount – Integral Style

Single-block integral body for ultra-compact close-coupled DP installations.

Enclosure Manifolds

Pre-fabricated heated/insulated manifold enclosures for cold-climate impulse lines.

Manifolds for DP Gauges

3- and 5-valve manifolds engineered for differential-pressure gauge sensing lines.

Monoflanges & VariAS-Blocks

Slimline DBB designs that replace traditional primary-isolation gate valves at the process flange – lighter, smaller and lower fugitive-emission footprint. Standard rating 420 bar / 6,092 psi.

Process Monoflanges

Slimline primary-isolation flanged monoflange with OS&Y bolted bonnet. Block, B&B or DBB.

Instrument Monoflanges

Screwed-bonnet monoflange variant for non-piping instrument tie-ins. Block / B&B / DBB.

VariAS-Blocks Flange x Thread

Compact DBB block with flanged process inlet and threaded instrument outlet.

VariAS-Blocks Flange x Flange

Double-flanged DBB body for direct in-line piping isolation up to 2,500# class.

Needle Type Globe Valves

The workhorse hand and needle valves for isolating, throttling and venting impulse lines and instrument loops. Rated 400-420 bar standard, with sour-gas, oxygen and fugitive-emission variants.

Hand Valves Type H

E Series hand-valve range – HAMF, HAFF, HXMF, HFFF, HLMF. 1/2 NPT std, 420 bar.

Integral Bonnet Type S338

6 mm bore needle valve with integral seat and non-rotating stem tip. 400 bar.

Angle Needle Valves S360

90-degree pattern angle needle valve for tight spaces and right-angle pipe runs.

Y-Pattern S371

Y-pattern globe body for low pressure drop, high-flow shut-off duties.

Union Bonnet A1

Union-bonnet single needle valve for maintenance-friendly stem repacking in service.

Union Bonnet Tandem B1

Two needle stems in one tandem body – block plus vent in a compact footprint.

Screwed Bonnet S350 / S351

Heritage screwed-bonnet needle valves – contact AS-Schneider sales for selection.

Gauge Valves & Pressure Gauge Accessories

Dedicated valves and accessories that protect pressure gauges from pressure spikes, vibration and pulsating flow – including snubbers, syphons and protectors.

Gauge Valves – Without Test

Standard single-isolation gauge valve for direct gauge installation, 1/2 NPT.

Gauge Valves – With Test

Gauge valve with integral 1/4 NPT test port for live calibration without removal.

Multiport Gauge Valves

Multi-port body for one gauge plus one or two test/calibration outlets.

Block & Bleed Gauge Valves

Single-body B&B gauge valve – isolation plus integral bleed for calibration safety.

Gauge Cocks

Quarter-turn cocks for fast gauge isolation in test, calibration and marine systems.

Gauge Protectors

Overpressure protector with auto shut-off to safeguard Bourdon gauge mechanisms.

Gauge Snubbers

Pulsation damper for gauges installed on reciprocating compressor and pump lines.

Gauge Syphons

Coil and pigtail syphons (DIN 16282) to cool steam & hot-fluid pressure media.

Ball Valves, Soft-Seated, Mini & Modular Valves

The full small-bore valve toolkit for instrument hook-ups: high-pressure ball valves, soft-seated leak-tight isolation valves, miniature 1/4-inch valves and modular mounting blocks for system standardisation.

High Pressure Ball KA

High-pressure floating-ball instrument valve, soft seat, threaded ends.

High Pressure Ball KB / KC

Three-piece floating-ball HP valve, repairable, full bore variants.

Metal Seated Ball KM

Metal-to-metal seat for high temperature and abrasive service – up to 500°C.

Ball Valves Type K

Compact 2-piece instrument ball valve for general utility shutoff.

Soft Seated Valves

Bubble-tight PEEK/PCTFE-seated needle valves for clean gas and analyser duty.

Mini Valves

Miniature 1/4-inch valves for compact analytical and sampling systems.

Modular Mounting Systems

Standardised pre-engineered manifold & valve blocks for repeatable hook-ups.

DirectMount Systems

Pre-engineered process-to-instrument close-coupled assemblies, leak-path minimised.

F Series Manifolds, Air Headers, Flange Adapters & Accessories

Specialised manifolds and instrumentation hardware to complete the hook-up package – from compressor-air distribution to flange adapters and hex nipples.

F Series & Multi-Way Cocks

Multi-port cocks and F-series manifolds for special routing applications.

Air Headers

Instrument-air distribution headers for valve-actuator and pneumatic networks.

Flange Adapters

Adapter flanges between IEC 61518 / ASME B16.5 and instrument-specific patterns.

Hex Nipples, Vent Valves, Pipe Plugs

Vent & bleeder valves, hex nipples, swivel gauge adapters and pipe plugs.

Double Block & Bleed Piping Ball Valves – Taurus Series

The Taurus Series is AS-Schneider’s flagship in-line piping DBB ball valve – a twin-ball design that combines primary isolation, secondary isolation and a vent in one compact body. Floating or trunnion ball, 2- or 3-piece flanged design, full or reduced bore, sizes 1″ to 6″, classes 150 to 2500. Rated 420 bar standard with NACE / sour-gas, hydrogen and TA-Luft 2021 variants.

Taurus DBB – Twin Ball

Standard Taurus Series twin-ball DBB – floating or trunnion ball, 1″-6″, 150-2500#.

3-Piece Flanged Design

3-piece body for in-line maintenance without breaking the pipe spool.

2-Piece Flanged Design

Compact 2-piece body, low weight and shorter face-to-face dimensions.

Taurus H2 / TA-Luft Variant

100% hydrogen-compliant variant with TA-Luft 2021 and ISO 15848-1 certification.

Valves for Large-Bore Diesel Engines

AS-Schneider is the world market leader for valves installed on slow- and medium-speed Large-Bore Diesel Engines used in ship propulsion, stationary power generation and gas-compressor drives. The product line covers indicator, safety, fuel and turbocharger cleaning valves – all also available as hydrogen-compatible variants.

Indicator Valves S473 / N473

Cylinder pressure indicator valves for large-bore engines, rated to 300 bar.

Safety Valves S476

Cylinder safety relief valve – set pressures 45-300 bar, M22 and 3/4-10 BSW.

Fuel Valves S475

Heavy-fuel-oil shut-off valve with graphite packing for high-temp service, 40-100 bar.

Turbocharger Cleaning S474

Die-forged turbo-cleaning valve, nozzle 2.0-7.5 mm, up to 600°C exhaust service.

Special Service, Nuclear & Digital

For non-standard media and high-assurance markets, AS-Schneider offers dedicated portfolios in Special Service (hydrogen, fugitive emissions, oxygen, cryogenic), Nuclear (RCC-M, ASME III) and Digital Services (IEC 61406 Digital Valve Plate plus the Digital Valve Kit).

Hydrogen-Compliant Valves

Instrumentation valves and DBB ball valves qualified for 100% H2 service.

Fugitive Emissions / TA-Luft

ISO 15848-1 and TA-Luft 2021 amendment-certified valves for low-emission plants.

Further Special Service

Oxygen-cleaned, cryogenic, sour-gas (NACE MR0175 / MR0103, ISO 15156) variants.

Nuclear Valves

Nuclear-grade isolation & instrument valves per RCC-M / ASME III safety classes.

Nuclear Manifolds

Manifolds qualified for nuclear power plant primary and secondary loops.

Digital Valve Plate IEC 61406

QR-code digital twin – product data, drawings, certificates and manuals on demand.

Digital Product Data Packages

Structured digital data packages (eCl@ss, ETIM, PDM) for asset management.

Instrumentation Hardware

Close-coupled installation kits, flush rings and instrumentation ball valves.

Real-World Applications in Vietnam

AS-Schneider valves enable mission-critical isolation and instrumentation across Vietnam’s energy and process infrastructure. Typical deployments include:

Oil & Gas Wellheads

DBB Taurus and Monoflange isolation on Christmas trees and manifold skids.

Green / Blue Hydrogen Plants

100% H2-compatible instrumentation valves on electrolyser and compressor skids.

Marine & Shipbuilding

S473/S476/S475 valves for MAN, Wartsila, Hyundai large-bore engines.

Refining & Petrochemical

Manifolds and DBBs on FCC, hydrocracker and crude-distillation skids.

Power Generation

High-pressure steam isolation on coal, gas-turbine and HRSG plants.

Chemicals & Fertilisers

Sour-gas (NACE) and oxygen-clean valves for urea, ammonia and chlor-alkali plants.

LNG Import & Terminals

Cryogenic-rated Taurus DBBs for LNG regas, BOG and recondenser systems.

Pulp & Paper

Corrosion-resistant 316L manifolds and gauge valves for black-liquor service.

Industries We Serve in Vietnam

Nhan Viet ICS JSC supplies AS-Schneider products across the breadth of Vietnam’s heavy industry – with engineering support for spec selection, sour-gas certification, hydrogen compliance and after-sales calibration.

Global Certifications & Standards

AS-Schneider products are qualified to the strictest international standards. Below are the certifications you can expect on every delivery to Vietnam.

Why Partner with Nhan Viet ICS JSC

Calibration, Lead Times & After-Sales

Lead Times

Standard catalogue items (hand valves, S338 needles, gauge valves, common manifolds) typically ship from German stock in 4-6 weeks ex-works. Engineered-to-order Taurus DBBs and Monoflanges in 12-16 weeks ex-works depending on configuration, materials and certification scope. Nhan Viet ICS JSC can expedite air-freight for urgent breakdown spares.

Pressure Testing & Certification

Every valve ships with EN 10204 3.1 material certs, hydrostatic shell & seat test reports, and a digital data package via IEC 61406 QR code. Optional witnessed tests by TUV, BV, DNV or owner inspectors are available – request when issuing the PO.

After-Sales Support

Repair kits (seals, packings, stems) are held in our Hanoi warehouse for high-runner SKUs. For Large-Bore Diesel valves on board ships, replacement valves can be drop-shipped to any Vietnamese port. Field-service support is coordinated through the AS-Schneider Asia-Pacific subsidiary in Singapore.

Frequently Asked Questions