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Pressure Adjustment Screw Component – Food Manufacturing

Component Specifications

Definition

A threaded mechanical component designed to precisely regulate the pressure of starch slurry within pressure control valves by adjusting the position of internal valve elements through rotational movement, typically featuring fine threads and calibrated markings for accurate pressure settings.

Working Principle

Operates through rotational motion that translates into linear displacement, compressing or releasing internal valve springs or diaphragms to modify the flow restriction and thereby control the pressure of starch slurry passing through the valve assembly.

Materials

Stainless steel 316L (AISI 316L) with corrosion-resistant coating, hardness: HRC 35-40, surface finish: Ra 0.8 μm

Technical Parameters

Length 40 mm
Head Type Hex socket (Allen) 6 mm
Thread Type M12 x 1.5 mm fine pitch
Torque Range 5-15 Nm
Temperature Range -10°C to 120°C
Corrosion Resistance IP67 equivalent
Pressure Adjustment Range 0.2-2.0 MPa

Standards

ISO 4762, DIN 912, ISO 898-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pressure Adjustment Screw.

Parent Products

This component is used in the following industrial products

Starch Slurry Pressure Control Valve

Precision valve regulating pressure in starch slurry processing pipelines.

View Product Details

Engineering Analysis

Risks & Mitigation

Thread galling due to starch residue accumulation
Over-torquing leading to thread stripping
Corrosion in high-moisture environments
Misalignment causing uneven pressure distribution

FMEA Triads

Trigger: Starch residue buildup in threads
Failure: Seized screw preventing adjustment
Mitigation: Implement regular cleaning schedule with food-safe solvents and apply food-grade lubricant

Trigger: Excessive torque during adjustment
Failure: Stripped threads or damaged valve seat
Mitigation: Use calibrated torque wrenches and provide operator training on proper adjustment procedures

Trigger: Material fatigue from cyclic loading
Failure: Screw fracture under pressure
Mitigation: Implement preventive replacement schedule based on cycle count and conduct regular visual inspections

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Thread pitch tolerance: ±0.01 mm, Diameter tolerance: h6, Straightness: 0.05 mm/100 mm

Test Method

Pressure cycling test per ISO 15848-1, Material certification per EN 10204 3.1, Food contact compliance testing per FDA 21 CFR 177.2600

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Related Components

Sealing Gasket

Sanitary sealing gasket for hygienic flow control valves in food processing systems

Feed Hopper

Feed hopper for continuous screw press oil extraction machines that controls material flow into the pressing mechanism.

Conical Body

Conical body component for starch hydrocyclone separation systems enabling centrifugal separation of starch particles from process water.

Inlet Flange

Inlet flange for starch hydrocyclone separation cone, connecting feed pipeline to separation chamber.

Frequently Asked Questions

What maintenance is required for pressure adjustment screws in starch slurry applications?

Regular inspection for thread wear, cleaning to prevent starch buildup, and lubrication with food-grade anti-seize compound every 6 months or 2,000 operating hours.

How do I calibrate the pressure adjustment screw?

Use a calibrated torque wrench to apply specified torque values while monitoring pressure gauge readings, following manufacturer's calibration procedures with reference to pressure-volume curves.

Can this screw be used with other slurry types?

While designed for starch slurry, it can handle similar viscosity non-abrasive food slurries, but not recommended for abrasive or chemically aggressive media without material verification.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Pressure Adjustment Screw