Product Review: 1032 & 1033 Sanitary Pressure Gauges

By: Eric Deoliveira, Business Development Leader on September 17th, 2025

Product Review: 1032 & 1033 Sanitary Pressure Gauges

pressure gauge | sanitary gauge | pharmaceutical and biotechnology | Food and Beverage | hygienic

This article was originally published on December 20, 2021, and updated on September 17, 2025.

In sanitary industries such as food/beverage and pharmaceutical/biotechnology, reliable pressure measurement is necessary to ensure product integrity and public safety. Pressure gauges used in these environments must be able to withstand rigorous cleaning cycles, resist contamination from bacteria build-up and comply with strict sanitary standards.

Ashcroft, a leader in pressure and temperature instrumentation, offers two sanitary gauges designed for these challenges: the 1032 Sanitary Pressure Gauge with Tri-Clamp® connections and the 1033 Sanitary Pressure Gauge with DIN 11851 hygienic unions. Both models combine hygienic design with rugged performance, ensuring accurate readings in critical processes.

Read this product review to explore the unique features, specifications and typical applications of each pressure gauge. At the end, you will also see a side-by-side comparison to help you determine which option is best for your sanitary process.

Ashcroft® 1032 Sanitary Pressure Gauge

The 1032 is a 3A-compliant gauge designed for pharmaceutical, biotech and food processes that use Tri-Clamp® fittings as the standard.

1032 Product Features

3A Sanitary Compliance: Certified to 3A sanitary standard 74, aligning with FDA and GMP requirements.
CRN certification is available for applications in Canada.
Tri-Clamp® Connections: Available in 1½˝ or 2˝ fittings, widely used in North America for ease of installation and hygienic sealing.
Electropolished Diaphragm (12–15 RA): Smooth, polished finish reduces the risk of bacterial buildup and makes cleaning more effective.
CIP (Clean-in-Place) / SIP (Steam-in-Place) / Autoclave Compatible: Handles repeated washdowns and sterilization cycles without compromising accuracy.
Easy Zero™ Adjustment: External zero adjustment on the 3½˝ dial enables quick recalibration in the field without removing the gauge, minimizing downtime.
PLUS!™ Performance Option: Adds internal dampening to stabilize pointer movement. This helps reduce pointer flutter from vibration or pulsation, extending instrument life in demanding processes.
Ingress Protection (IP65 / IP54): Smaller dials (2½˝ and 3½˝) are sealed to IP65, offering dust-tight protection and resistance to water jets. The 4½˝ dial is available with IP54 (splash resistance) or IP65, ensuring reliable performance in washdown environments.
Material Options: Offered in 316L stainless steel or Hastelloy® C276 to resist aggressive media.
Traceability: Supplied with heat lot traceable material certificates for compliance in regulated industries

1032 Product Applications

Pharmaceutical manufacturing — sterile processes requiring validated CIP/SIP cycles.
Biotech and medical equipment — high-purity applications where contamination cannot be risked.
Food and dairy processing — hygienic monitoring supporting FDA and GMP compliance.
Filtration systems — ensures process integrity in water, air, and sterile filtration processes.

Note: If there is high vibration in your application. If so, you will need to consider a fluid fill. Ashcroft offers various fill fluids for oxygen service or paint applications to mitigate the negative effects of vibration.

Ashcroft® 1033 Sanitary Pressure Gauge

The 1033 is a DIN 11851-compliant sanitary gauge designed for breweries, dairy and food processes where hygienic union (milk coupling) connections are the industry standard.

1033 Product Features

DIN 11851 Hygienic Connections: Available in DN 25, DN 40, and DN 50, providing global compatibility for food and beverage systems.
Polished Diaphragm (15 RA): Smooth finish prevents contaminant buildup and supports effective sterilization.
CIP (Clean-in-Place) / SIP (Steam-in-Place) / Autoclave Compatible: Designed to endure frequent washdowns and sterilization, critical for dairy and brewery applications.
Easy Zero™ Adjustment: External zero adjustment (3½˝ dial) allows calibration checks and corrections without disassembly, reducing downtime.
PLUS!™ Performance Option: Provides added vibration dampening, improving readability and reducing wear in systems with pulsating pressure.
Ingress Protection (IP65): Fully sealed against dust and water jets, making it suitable for washdown and humid environments.
Certificates Supplied as Standard: Delivered with EN 10204 3.1 certificates of conformance for quality assurance.

1033 Product Applications

Breweries: Optimized for hygienic brewing systems with DIN 11851 connections.
Food & dairy processing: CIP/SIP compatibility reduces contamination risks during frequent cleaning.
Pharmaceutical & cosmetics: Hygienic stainless-steel design supports regulated environments.
OEM sanitary equipment: Trusted for machine builders serving global food and beverage sectors.

Product Specification Comparison: 1032 vs. 1033

Specification	1032 Sanitary Gauge	1033 Sanitary Gauge
Dial Sizes	2½˝, 3½˝, 4½˝	2½˝, 3½˝
Pressure Ranges	Vacuum, compound, up to 1,000 psi	Vacuum, compound, up to 600 psi
Accuracy	2½˝ & 3½˝: ±2.0% to ±2.5% of span (≤100 psi), ±1.5% of span (>100 psi) 4½˝: ±1.5% of span	2½˝ & 3½˝: ±2.0% to ±2.5% of span (≤100 psi), ±1.5% to ±2.0% of span (>100 psi, depending on fill)
Process Connections	1½˝ or 2˝ Tri-Clamp®	DIN 11851: DN 25, DN 40, DN 50
Fill Options	Glycerin (USP food grade), food-grade silicone, Halocarbon®, mineral oil	Glycerin, food-grade silicone, Halocarbon®, mineral oil
Case Style	Open front, polished stainless steel	Open front, polished stainless steel
Window	Polycarbonate (2½˝ & 3½˝), glass (4½˝)	Polycarbonate (2½˝ & 3½˝)
Wetted Materials	316L stainless steel or Hastelloy® C276 diaphragm and housing	316L stainless steel diaphragm and housing
Weather / Ingress Protection	IP65 (2½˝ & 3½˝ dials); IP54 or IP65 (4½˝, depending on fill)	IP65 (all sizes)
Compliance / Certification	3A-74 sanitary compliance, CRN, RoHS	EN 10204 3.1 material certificates provided as standard

Ready to learn more?

Now that we have reviewed the features, benefits, applications and specifications of The Ashcroft® 1032 and 1033 Sanitary Pressure Gauges, you can make a more informed decision about which one is best for your needs. With both models, you can be sure to get reliable measurement, compliance with sanitary standards and long-term durability in washdown and sterilized environments.

To learn more about selecting instruments for sanitary applications, or to read other Ashcroft product reviews, take a look at the following articles:

About Eric Deoliveira, Business Development Leader

Eric Deoliveira is a Business Development Leader at Ashcroft, Inc. He is responsible for developing industrial and digital instruments, including those designed for sanitary and high-purity applications. Eric has been with Ashcroft since 2015 and spent 3 years as a Product Support Engineer for Mechanical Temperature and 7 years as a Product Manager before transitioning into his current leadership role. Eric enjoys coming up with solutions for customer problems and introducing new products to satisfy the needs of the market. When not working on his products, he is out golfing in the summer and skiing in the winter.