Reliable Pressure & Temperature Instruments for Vietnam’s Critical Industries

About Ashcroft – A Legacy of Reliability Since 1852

Ashcroft Inc. is one of the oldest and most trusted names in industrial measurement. Headquartered in Stratford, Connecticut, USA, the company has been engineering pressure and temperature instruments for more than 170 years, dating back to founder Edward H. Ashcroft’s patent improvements on the Bourdon tube pressure gauge in 1852. That heritage has translated into a global reputation captured in the company’s signature promise: Trust the Shield.

Today, Ashcroft serves customers in more than 80 countries through a network of regional manufacturing sites, sales offices and authorized distributors. The brand is engineered into the most demanding process industries on the planet – refineries, petrochemical complexes, power stations, semiconductor fabs, pharmaceutical reactors, hydrogen plants and water treatment systems – wherever an inaccurate reading or a failed gauge could mean lost production, damaged equipment, environmental harm or a safety incident.

What sets Ashcroft apart is the depth of engineering behind seemingly simple products. A pressure gauge looks like a passive dial – but the alloy of the wetted parts, the case fill, the dampening of the movement, the over-pressure capacity and the certification trail all determine whether the instrument survives 10 years of vibration on a compressor skid or fails inside 12 months. Ashcroft’s investment in materials science, in-house calibration, and rigorous quality processes (ISO 9001, ASME B40.100, ATEX, IECEx, SIL, NACE MR0175 and many regional certifications) is what justifies the brand’s place on engineering standard specifications across the global process industries.

Why Engineers Choose Ashcroft

Ashcroft Pressure Instruments

Pressure measurement is the largest part of the Ashcroft portfolio – and the family that built the brand’s reputation. Nhan Viet ICS JSC supplies the complete pressure range, from rugged industrial dial gauges through digital test equipment and SMART transmitters, configured to your application, process connection, accuracy class and certification requirements.

Pressure Gauges

Ashcroft’s mechanical pressure gauge range spans general industrial, process, sanitary, sealed-system and high-purity applications. The flagship process gauge line is the Type 1279 Duragauge – a 4.5-inch solid-front, blowout-back instrument designed for the harshest process service. For commercial and OEM duty, families such as the Type 1009 Duralife stainless industrial gauge and a range of dry and liquid-filled commercial models cover the broader low-cost end of the portfolio.

• Process gauges – Type 1279 Duragauge and related solid-front process models for refining, chemical and power applications.
• Industrial gauges – Stainless and brass-internals gauges for general plant service, including liquid-fillable variants for vibration and pulsation.
• Commercial & OEM gauges – Compact, cost-effective gauges for equipment manufacturers and utility services.
• Differential pressure gauges – For filter monitoring, flow measurement and tank level applications.
• Sanitary gauges – 3-A and EHEDG-compliant designs for food & beverage, dairy, and pharmaceutical use.
• Low-pressure & bellows gauges – For draft, capsule and inches-water-column ranges in HVAC and gas distribution.

1279 Duragauge

4.5″ ASME process gauge – solid-front, blowout-back, flagship Ashcroft.

1259 Process Gauge

Economical 4.5″ ASME process gauge – Stainless or Monel wetted parts.

1009 Industrial

2.5″/3.5″ steel-case industrial gauge – durable plant duty.

T5500 EN 837

100 mm EN 837-1 open-front stainless case – high reliability.

1032 Sanitary

3-A approved sanitary gauge for food, beverage and pharma.

1130 Differential

Economical differential pressure gauge – filter, flow and lube duty.

DG25 Digital

General-purpose digital gauge with laser-welded stainless sensor.

Pressure Switches

Ashcroft mechanical and electronic pressure switches provide reliable alarm, shutdown and control signals where solid-state transmitters and DCS systems either aren’t required or aren’t appropriate (for example, hard-wired safety interlocks). The B-series compact industrial switches, weatherproof switches, and explosion-proof units cover a broad range of process conditions, with options for snap-action and mercury-free contact arrangements, hazardous area approvals, and field-adjustable set points.

B-Series NEMA 4X

B4 watertight switch for industrial alarm and trip duty.

B7 Explosion Proof

NEMA 7/9 hazardous-location switch for process and OEM.

D-Series Differential

NEMA 4X watertight dP switch – filter, pump and flow duty.

P-Series Heavy Duty

NEMA 7/9 explosion-proof switch for harsh applications.

A-Series Miniature

Compact APA/APS watertight switch for OEM integration.

LP-Series NEMA 4

High-reliability NEMA 4 switch – easy field setup.

Pressure Sensors – Transducers & Transmitters

Where a 4-20 mA, 0-10 V or digital output is required, Ashcroft’s pressure transducer and transmitter range delivers stable, factory-calibrated signals for control and monitoring. The portfolio includes high-stability industrial transducers, OEM-grade compact transducers, intrinsically safe units for hazardous areas, and submersible level transmitters. Outputs and ranges are configurable, and stainless-wetted-part construction is standard for most process variants.

E2S Intrinsically Safe

CVD sensor, IS/non-incendive approvals for Zone 0/1/2 areas.

E2F Explosion Proof

Flame-proof / explosion-proof approvals – proven CVD sensing.

A2X Flame Proof

Explosion-/flame-proof transmitter for toughest hazardous-area duty.

G2 OEM Transducer

Polysilicon thin-film sensor – value-engineered OEM transducer.

S1 Heavy-Duty OEM

Pressures to 10,000 psi with shock/vibration tolerance.

SL17 Submersible

Submersible level transmitter – small OD for tank/well drops.

Diaphragm Seals & Isolators

For corrosive, viscous, slurry, hot, freezing or sanitary services, a diaphragm seal protects the gauge or transmitter from direct process contact. Ashcroft offers an extensive range of welded and threaded seals, flushing connection options, and exotic materials (Hastelloy, Monel, tantalum, PTFE-coated, gold-plated) configured to match the upstream sensor. This is one of the most application-critical decisions in pressure measurement, and Nhan Viet’s engineering team can help specify the right seal-and-instrument combination for your service conditions.

200/201 Threaded Seal

Threaded diaphragm seal for corrosive, pulsating media.

102/103 Flanged Seal

Flanged diaphragm seal – process-compatible for slurry, corrosion.

510/511 All-Welded

All-welded compact diaphragm seal – aggressive media.

80 Wafer Iso Ring

Inline isolation ring – eliminates accumulation in wastewater.

DF Flush Flanged

Diaphragm welded directly to flange – reduced cost, sticky media.

740/741 High Displ

High-displacement seals for low-range instruments and dP gauges.

SMART Transmitter Assemblies

Ashcroft pre-engineers full SMART transmitter assemblies that combine a digital pressure transmitter with a diaphragm seal, fill fluid and process connection into a single tagged, certified package. This eliminates field assembly risk and ensures the performance curve published on the datasheet is the performance delivered in service.

Pressure Accessories

Snubbers, gauge cocks, syphons, gauge savers, overpressure protectors, calibration adapters and bracket kits – Ashcroft accessories let engineers complete a measurement loop without source-substituting components that could compromise warranty or accuracy.

Ashcroft Temperature Instruments

Ashcroft’s temperature portfolio mirrors the rigor of the pressure range. From mechanical bimetal thermometers to multipoint thermocouples for reactor and column profiling, Nhan Viet supplies the products and the engineering judgment to specify them correctly.

Industrial & Sanitary Thermometers

Bimetal dial thermometers, every-angle and adjustable-stem variants, gas-actuated thermometers and digital thermometers – sized for process tanks, piping, sterilizers and steam systems. Sanitary-construction variants are available for food & beverage and pharmaceutical use.

EI Bimetal

Bimetal thermometer with dampening – rugged everyday plant duty.

CI Bimetal

Tamperproof bimetal thermometer – accurate temperature indication.

EL Silicon-Filled

Silicon-filled bimetal – vibration protection on pumps and compressors.

C-600B Duratemp

Direct-mount gas-actuated thermometer – shock and vibration tolerant.

C-600A Remote-Mount

Remote/panel-mount gas-actuated Duratemp.

S5500 Gas Actuated

Direct- or remote-mount gas-actuated thermometer.

Thermowells

Ashcroft thermowells are engineered with wake-frequency calculation, ASME PTC 19.3 TW compliance and wide material choices to protect temperature sensors from process velocity, pressure and corrosion. Threaded, flanged, socket-weld, sanitary and Van Stone styles are available, in 316SS, Hastelloy, Inconel, Monel and more.

Threaded Thermowell

Industry-standard threaded thermowell.

Flanged Thermowell

Flanged thermowell with full ASME flange ratings.

Socket Weld

Socket-weld thermowell – where exposed threads not acceptable.

Van Stone

Allows exotic-alloy wetted parts with carbon-steel flange.

Weld-In

Direct weld-in thermowell – permanent high-integrity install.

Sanitary Thermowell

Sanitary stepped thermowell for food/beverage/pharma.

Temperature Switches

Electromechanical and electronic temperature switches for alarm, control and trip duties, with bulb-and-capillary and bimetal sensing options across general industrial and explosion-proof construction.

RTDs (Resistance Temperature Detectors)

Pt100 and Pt1000 RTDs in straight, spring-loaded, sanitary and OEM configurations. Available with 2-, 3- and 4-wire constructions, integral or remote-mounted transmitters, hazardous area approvals and a range of probe sheath materials.

S10 RTD (Metric)

MI probe with metric fittings – European-spec installs.

S50 Industrial RTD

MI probe with NPT fittings – industrial standard.

S01 RTD Insert

Drop-in replacement insert for installed probe assemblies.

S81 RTD Probe

MI RTD probe with optional connectors – OEM/lab use.

Thermocouples

Type J, K, E, T, N, R, S and B thermocouples for the full temperature range from cryogenic to over 1,600 degrees C. Available in MgO-insulated, ceramic-insulated, sanitary, and exotic-sheath constructions. Thermocouples are the workhorse temperature sensor for high-temperature service – kilns, furnaces, reformers, heat treatment lines.

MultiPoint Temperature Sensors

For columns, reactors, fluidized beds and stratified storage tanks, Ashcroft multipoint assemblies put many sensing points inside a single thermowell or sheath – enabling temperature profiling without multiplying the number of process penetrations. Custom-engineered to the column or vessel geometry.

OEM Temperature Sensors

Ashcroft also supplies temperature sensors at scale to equipment manufacturers – HVAC and refrigeration, hydrogen and alternative-energy systems, semiconductor process tools, medical devices and vehicles.

Ashcroft Test & Calibration Instruments

Industrial measurement is only as good as the references used to verify it. Ashcroft’s test-instrument range gives calibration labs, maintenance technicians and engineers laboratory-grade traceability in shop and field environments.

Digital Test Gauges & Calibrators

The Ashcroft ATE digital test gauge family (including the Type 2082 ATE) provides high-accuracy digital pressure measurement, rechargeable battery operation, multiple engineering units, data-logging variants and intrinsically safe versions for hazardous-area calibration.

2084/2086/2089 Digital

High-accuracy digital test gauge family – lab-grade total error.

1082 Test Gauge

Precision analog test gauge for installed-instrument validation.

1084 Pocket Test

Pocket-size test gauge for quick inspection at key points.

A4A Precision

High-accuracy precision dial gauge for lab calibration.

Test Gauges

For analog reference work, Ashcroft test gauges (typically 6 inch dial, 0.25% or 0.1% accuracy class) provide a higher-accuracy mechanical reference for verifying installed pressure gauges and transmitters in the field.

Hand Pumps & Pressure Controllers

Pneumatic and hydraulic hand pumps for generating reference pressures during field calibration, plus controllers for automated test-bench applications.

Hydraulic Testers

For higher-pressure work – relief valve testing, hydrostatic verification, hydraulic system commissioning – Ashcroft hydraulic test equipment delivers the pressure capacity required without compromising operator safety.

Industries We Serve in Vietnam

Ashcroft instruments are specified into virtually every process industry in Vietnam. Nhan Viet ICS JSC supports the country’s industrial operators and EPC contractors with product selection, project pricing, expediting and post-installation support across:

Oil & Gas

Upstream production platforms, gas processing, midstream pipelines and downstream refineries – including SIL-rated safety loops, hazardous-area certified instruments, NACE MR0175 sour-service compliance and exotic-alloy wetted parts.

Petrochemicals

Ethylene, polyolefin, aromatics and intermediates plants demand instruments engineered for high temperatures, corrosive streams and continuous service. Ashcroft diaphragm seals, exotic-material gauges and SMART transmitter assemblies are standard specifications in the sector.

Chemicals & Fertilizer

From caustic and acid services to ammonia and urea production, Ashcroft offers material combinations (Hastelloy, tantalum, PTFE-lined, gold-plated diaphragms) that protect instruments in services where standard 316SS will not survive.

Power Generation

Thermal, gas-turbine combined-cycle and renewable-balance-of-plant applications use Ashcroft instruments throughout the steam cycle, fuel gas system and balance-of-plant utilities.

Pulp & Paper

Digester, recovery boiler, bleach plant and paper-machine measurement points where chemical and mechanical conditions challenge instrumentation continuously.

Water & Wastewater Treatment

Filtration plants, desalination, municipal and industrial wastewater – including filter differential-pressure monitoring, submersible level transmitters, sodium hypochlorite and chlorine dioxide service.

Mining & Minerals

Slurry pump discharges, autoclaves, leaching circuits and ore processing – where abrasion, corrosion and pulsation eat conventional instruments.

Food & Beverage

Sanitary process measurement using 3-A approved gauges, sanitary diaphragm seals and clean-in-place compatible designs for dairy, brewing, beverage and processed-food applications.

Pharmaceutical & Biotech

Hygienic instrument design with documentation packages suitable for GMP and FDA-aligned environments – including SIP/CIP-rated diaphragm seals and stainless-construction transmitters.

Global Certifications & Standards

One of the reasons Ashcroft instruments are written into international specifications is the breadth of third-party certifications carried by the product range. Depending on the model and configuration, Ashcroft products carry approvals including:

Nhan Viet ICS JSC can supply the relevant certificates – material test reports (EN 10204 3.1), calibration certificates traceable to national standards, hazardous-area certificates and customer-specific quality documentation – as part of the project documentation package.

Why Partner with Nhan Viet ICS JSC for Ashcroft in Vietnam

Specifying a global brand into a Vietnamese project is only half the equation. The other half is whether the local partner can support that brand with engineering judgment, project documentation, in-country stock and post-sale technical support. That’s the role Nhan Viet ICS JSC plays.

Ashcroft sits alongside our other tier-one principals – Precision Flow, Sandvik, McCrometer, Flexitallic, Kentintrol, Canalta, Accuflow, Novafast and MCU Coating – so we can package multi-brand instrument and flow-control scope into a single project bill of materials when that is the most efficient way to deliver.

Calibration, Lead Times & After-Sales Support

The reality of plant operations is that an instrument is bought once but lived with for years. We design our customer relationship around the full lifecycle, not just the initial purchase.

Calibration Services

Every Ashcroft pressure gauge, transmitter and test instrument we supply can be ordered with a traceable calibration certificate. For installed-base instruments, we coordinate periodic re-calibration so plant turnaround windows are met without surprises.

Lead-Time Visibility

Standard catalog items typically ship in short lead times; engineered diaphragm-seal assemblies, multipoint thermocouples and SMART transmitter packages have longer factory cycles.

Spare Parts & Replacements

Movements, sockets, dial faces, set-point modules and other field-replaceable parts are available so an instrument doesn’t have to be scrapped when a single component fails.

Site Support

For complex commissioning or troubleshooting cases – particularly involving SMART transmitter assemblies, multipoint temperature systems or hazardous-area installations – our engineering team can attend site and support installation and start-up.

Frequently Asked Questions