What are Specialty Lubricants?

Specialty lubricants are designed for extreme pressure, temperature, corrosion and heavy-duty industrial applications.

Why are Specialty Lubricants required?

They improve equipment reliability, reduce friction and extend equipment service life in demanding industrial environments.

Where are Specialty Lubricants commonly used?

Specialty lubricants are widely used in oil and gas, mining, cement plants, steel mills, marine and power generation industries.

How do Specialty Lubricants differ from normal grease?

Unlike normal grease, specialty lubricants are engineered to perform under extreme pressure, high temperature and corrosive industrial environments.

Can PSC help select the right lubricant?

Yes. PSC provides application-driven lubricant selection based on equipment type, operating conditions and industry requirements.

Technical Insight · Valve Reliability

Why Valves Fail: Understanding the Mechanisms That Compromise Industrial Operations

From refineries to offshore platforms, valve failures rarely announce themselves. Learn to recognise the developing conditions before they become costly incidents.

PSC — Project Sales Corp Industrial Maintenance Series 8 min read

Valves are among the most critical components in any industrial operation — isolating, regulating, protecting and controlling the movement of gas, oil, water, steam, chemicals and process fluids across the entire plant ecosystem. When one fails, the consequences extend far beyond the valve itself. A hard-turning valve delays a shutdown. A leaking valve creates safety and environmental risk. A seized valve can compromise emergency response entirely.

Primary failure mechanisms in industrial valves

~90%

Of failures develop gradually — not suddenly

1st

Warning sign: increased operating torque

↓

Planned maintenance lowers unplanned shutdown risk

The 8 failure mechanisms

Hard Operation and High Torque

One of the earliest warning signs: the valve becomes increasingly difficult to open, close or cycle. In plug and ball valves, lubricant film breakdown directly increases friction — over time damaging seats, stems, plugs and gear operators.

Dried lubricant Internal contamination Corrosion Mechanical wear Wrong lubricant selection

Internal Leakage

The valve appears closed — yet fluid or gas continues to pass through. In critical isolation applications, this creates serious operational and safety concerns that worsen without intervention.

Seat damage Erosion Incorrect sealant Thermal cycling Worn sealing surfaces

External Leakage

Product escaping from the valve body, stem, packing area or fittings. Depending on service media, this rapidly transitions from a maintenance issue into a safety, environmental or compliance incident.

Packing wear Gasket failure Corrosion Over-pressurisation Degraded sealant

Lubricant and Sealant Breakdown

Valve lubricants and sealants face relentless exposure to pressure, temperature, process media, cycling and ageing. When they degrade, the valve may become hard to operate, fail to seal or stop accepting sealant altogether.

Hardening or drying Wash-out Chemical incompatibility Age degradation

Corrosion and Contamination

Affecting valve bodies, stems, fittings, cavities and injection systems, corrosion and contamination are among the most pervasive contributors to poor valve reliability — particularly in pipeline and offshore environments.

Dust and scale Rust Sand ingress Process debris

Blocked Injection Fittings

A common field problem where the injection gun pressure rises but no product enters the valve. Forcing additional pressure without diagnosis can damage fittings or create unsafe maintenance conditions.

Hardened old sealant Blocked check valves Wrong viscosity Cold conditions

Poor Maintenance Practice

Incorrect product selection, wrong quantities, failure to flush old material, lubricating only after failure — these practices directly accelerate valve degradation and dramatically reduce service life.

Wrong product Incompatible compounds Reactive-only maintenance No media consideration

Unsuitable Product Selection

Using a lubricant or sealant that is not matched to the valve type, service media, temperature or pressure regime is a hidden failure trigger — one that may not manifest until the valve is already critically compromised.

Wrong temperature range OEM non-compliance Media incompatibility Generic substitution

The role of a correct lubrication and sealant programme

The objective is not simply to inject grease. The objective is to maintain valve function. A properly designed programme reduces friction, improves sealing, lowers operating torque, protects sealing surfaces, flushes contamination, restores serviceability and extends valve life across the entire asset lifecycle.

Valve type & OEM specifications

Temperature & pressure regime

Service media compatibility

Operating cycle frequency

Sealant chemistry selection

Maintenance objective & symptom

Conclusion

Valve failure is almost always the result of a developing condition — not a single catastrophic event. Hard operation, leakage, corrosion, contamination, lubricant breakdown and poor maintenance practices all compound over time to reduce reliability across your critical valve population.

The shift from reactive repair to planned valve reliability management begins with understanding these mechanisms. With the right products, the right selection process and a structured maintenance programme, maintenance teams can extend valve life, reduce unplanned downtime and eliminate the hidden costs of valve neglect.

Partner with PSC for Critical Valve Maintenance

PSC supports industrial customers with valve lubricants, sealants, cleaners, flushing compounds, injection equipment and sourcing support from approved global manufacturers — for refineries, pipelines, offshore platforms, LNG terminals and power plants.

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