Editorial Technical Reference

Sanitary Pressure Relief Valve

This page explains how Sanitary Pressure Relief Valve is classified within Alcoholic Beverages Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

This sanitary pressure relief valve is a safety component designed for alcoholic beverage manufacturing environments where hygiene and pressure control are critical.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Sanitary Pressure Relief Valve

Definition
This sanitary pressure relief valve is a safety component designed for alcoholic beverage manufacturing environments where hygiene and pressure control are critical. It automatically releases excess pressure from fermentation tanks, bright beer tanks, and processing vessels to prevent equipment damage and ensure operational safety. The valve integrates into sanitary piping systems with polished surfaces and crevice-free designs to minimize bacterial growth. Constructed from 316L stainless steel with food-grade EPDM and PTFE seals, it meets hygienic requirements. Key parameters include a set pressure range of 0.1–1.6 bar, flow capacity of 500–5000 m³/h, operating temperature from -10 to 150 °C, and connection sizes DN25–DN100 (typically Tri-Clamp). Surface finish is Ra ≤ 0.8, and leakage rate at 90% of set pressure is ≤0.05% of set pressure. Reseating pressure is ≥90% of set pressure, with blowdown ≤10%. Weight ranges from 2.5 to 15 kg depending on configuration. Standards referenced include DIN EN ISO 4126-1, ISO 4126-1, DIN 11850, ISO 4287, ASTM A182, and FDA 21 CFR 177.2600. As a B2B component, it is supplied to breweries, wineries, and distilleries as part of their safety and process control infrastructure. Verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
The valve uses a spring-loaded mechanism where process pressure acts on a diaphragm, compressing a spring. When the pressure exceeds the set point, the valve opens to release fluid or gas until the pressure drops to the reseating level. The set pressure is adjustable within the spring range of 0.1–1.6 bar. The valve is designed to reseat at ≥90% of set pressure, with blowdown ≤10%, ensuring minimal product loss. The diaphragm and seals are made of food-grade EPDM or PTFE, compatible with hygienic media. The polished internal surfaces (Ra ≤ 0.8) prevent bacterial adhesion. The valve operates within -10 to 150 °C and is available in DN25–DN100 connections. It is a mechanical device requiring no external power, providing fail-safe operation in the event of pressure surges.
Common Materials
316L Stainless Steel, Food-Grade EPDM, PTFE
Technical Parameters
ParameterTypical rangeNotes & selection driver
Set PressureRequired0.1–1.6 barPressure at which valve begins to openDIN EN ISO 4126-1
Flow CapacityRequired500–5000 m³/hMaximum discharge rate at full openingISO 4126-1
Operating TemperatureRequired-10–150 °CTemperature range for reliable operation
Connection SizeRequiredDN25–DN100 inchesSanitary fitting diameter (typically Tri-Clamp)DIN 11850
Surface FinishRa ≤ 0.8 RaInternal surface roughness for hygienic requirementsISO 4287
Spring Range0.1–1.6 barAdjustable pressure setting range
Body Material316L1.4404 / 1.4435.ASTM A182
Seal MaterialEPDM/PTFEFood-grade, replaceable.FDA 21 CFR 177.2600
Leakage Rate≤0.05 % of set pressureAt 90% of set pressure.ISO 4126-1
Reseating Pressure≥90 % of set pressureBlowdown ≤10%.
Weight2.5–15 kgDepends on size and configuration.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Valve Body Part
    Main housing with sanitary connections
    Material: 316L Stainless Steel
  • Diaphragm Part
    Pressure-sensitive element that actuates valve
    Material: Food-Grade EPDM
  • Spring Assembly
    Provides calibrated resistance for pressure setting
    Material: 316 Stainless Steel
  • Seat Seal Part
    Creates leak-tight closure when valve is closed
    Material: PTFE
  • Adjustment Screw Optional Part
    Allows precise setting of opening pressure
    Material: 316 Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Sanitary Pressure Relief Valve.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-10 bar (g) with set pressure typically 1-6 bar
flow rate: Cv values 0.5-10.0 depending on valve size
temperature: -10°C to 120°C
slurry concentration: Not recommended for slurries >5% solids by weight
Media Compatibility
✓ Carbonated beverages ✓ Dairy products ✓ Pharmaceutical-grade water
Unsuitable: Abrasive particulate slurries or highly viscous fluids
Sizing Data Required
  • Required set pressure (bar)
  • Maximum flow rate during relief (m³/h)
  • Process media viscosity and temperature

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced leakage
Cause: Exposure to aggressive chemicals or improper material selection for the sanitary environment, leading to pitting or general corrosion of valve components, compromising seal integrity.
Sticking or failure to reseat
Cause: Accumulation of product residues, biofilm formation, or mineral deposits on the valve seat and moving parts, preventing proper closure after pressure relief.
Maintenance Indicators
  • Visible weeping or continuous leakage from the valve body or discharge port when the system is at normal operating pressure.
  • Audible hissing or chattering sounds during normal operation, indicating improper seating or unstable pressure relief.
Engineering Tips
  • Implement a regular cleaning and sanitization schedule using compatible agents to prevent residue buildup and biofilm formation, ensuring all wetted surfaces remain free of contaminants.
  • Conduct periodic functional tests under controlled conditions to verify set pressure accuracy and resealing performance, and replace elastomer seals or diaphragms as per manufacturer's lifecycle recommendations.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 4126-1: Safety devices for protection against excessive pressure ASME/ANSI BPE: Bioprocessing Equipment standards for sanitary design 3-A Sanitary Standards 74-03: Sanitary pressure relief valves

Quoted from the published standard.

Manufacturing Precision
  • Seat flatness: ≤ 0.025 mm
  • Surface finish (Ra): ≤ 0.8 μm for wetted surfaces
Quality Inspection
  • Pressure hold test: 1.5x rated pressure for 30 minutes
  • Material verification: Positive Material Identification (PMI) for wetted parts

Manufacturers of Sanitary Pressure Relief Valve

5 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

China Sanitary Valve
Zhejiang, CN
Founded 200251~100 staff5,000-10,000 square meters
ISO9001 ASME CE Test Report
Listed on the company's own website · profile compiled by CNFX from public sources
CJan Fluid Technology Co., Ltd.
Shanghai, CN
ISO 9001:2015 IATF 16949
Listed on the company's own website · profile compiled by CNFX from public sources
Jianen Sanitary
Wenzhou, Zhejiang, CN
Founded 2009
3A CE ISO9001 SGS
Listed on the company's own website · profile compiled by CNFX from public sources
Sunthai Extractor
Zhejiang, CN
200-500 staff20,000 m²
ISO 9001:2015
Listed on the company's own website · profile compiled by CNFX from public sources
AVM Extraordinary Intelligent Control (Zhejiang) Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the set pressure range of this valve?

The set pressure range is 0.1–1.6 bar, adjustable via the spring. The exact set point must be configured according to your system requirements and verified with the manufacturer.

What materials are used for the body and seals?

The body is made of 316L stainless steel (1.4404/1.4435) per ASTM A182. Seals are food-grade EPDM or PTFE, compliant with FDA 21 CFR 177.2600. These materials are suitable for hygienic applications.

What connection sizes are available?

Connection sizes range from DN25 to DN100, typically using Tri-Clamp sanitary fittings per DIN 11850. Ensure compatibility with your piping system.

What is the leakage rate and reseating pressure?

Leakage rate at 90% of set pressure is ≤0.05% of set pressure. Reseating pressure is ≥90% of set pressure, with blowdown ≤10%. These values ensure reliable sealing and minimal product loss.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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