Valve Accessories & Spares — Technical Overview & Selection Guide

Overview

Valve accessories and spares are essential components used for valve installation, connection, sealing, maintenance, repair, and replacement in piping and process systems. They support reliable valve operation and help maintain the integrity of piping connections and equipment throughout the service life of the system.

The product range may include pipe fittings, slip-on flanges, gaskets, fasteners, valve replacement components, and other associated piping and valve accessories, selected according to size, pressure class, material, temperature, fluid service, and project requirements.

Key Features

• Suitable for valve and piping installation applications

• Available in various sizes and pressure classes

• Carbon Steel, Stainless Steel, Alloy Steel, and other materials available

• Suitable for low- and high-pressure applications

• Suitable for liquid, gas, steam, and process services

• Available for industrial and process piping systems

• Flanged and threaded connection options available, depending on product type

• Gaskets available for different pressure and temperature conditions

• Fittings available in various configurations

• Suitable for maintenance, replacement, and repair applications

• Available according to applicable dimensional and material requirements

• Suitable for new construction and plant maintenance requirements

Common Valve Accessories & Spares

• Pipe Fittings

• Slip-On Flanges

• Weld Neck Flanges

• Blind Flanges

• Threaded Flanges, where applicable

• Gaskets

• Stud Bolts & Nuts

• Valve Bolts & Fasteners

• Valve Seats

• Valve Seals

• Valve Packing

• Valve Discs

• Valve Stems

• Valve Replacement Components, as applicable

Technical Selection Parameters

Selection should consider:

Pipe Fittings

Pipe fittings are used to connect, redirect, reduce, or terminate piping systems and provide suitable connections between valves, pipes, equipment, and other components.

Common fittings include:

• Elbows

• Tees

• Reducers

• Concentric Reducers

• Eccentric Reducers

• Caps

• Crosses, where applicable

• Couplings, where applicable

Fittings should be selected according to piping size, schedule, pressure class, material, connection type, fluid service, and applicable project specifications.

Slip-On Flanges

Slip-on flanges are designed to fit over the outside diameter of a pipe and are commonly welded to the pipe for connection to valves, fittings, equipment, and other flanged components.

Selection should consider:

• Size

• Pressure Class

• Material

• Flange Facing

• Pipe Schedule

• Bore Requirements

• Operating Pressure

• Operating Temperature

• Fluid Service

• Applicable Dimensional Requirements

Slip-on flanges may be supplied in materials such as Carbon Steel, Stainless Steel, and Alloy Steel according to project requirements.

Gaskets

Gaskets provide sealing between mating flanged surfaces and help prevent leakage from piping and valve connections.

Common gasket types may include:

• Spiral Wound Gaskets

• Ring Type Joint Gaskets

• Graphite Gaskets

• PTFE Gaskets

• Non-Metallic Gaskets

• Metallic Gaskets, where applicable

Gasket selection should consider:

• Fluid Compatibility

• Operating Pressure

• Operating Temperature

• Flange Facing

• Pressure Class

• Chemical Compatibility

• Required Leakage Performance

• Gasket Material

For high-pressure applications, gasket type and dimensions should be selected according to the applicable flange and piping specifications.

Valve Spares

Valve spares are replacement components used for maintenance, repair, and restoration of valve performance.

Depending on valve design, available spares may include:

• Valve Seats

• Valve Discs

• Valve Stems

• Valve Seals

• Valve Packing

• Gaskets

• Bolts & Nuts

• Bushes

• Springs

• Sealing Rings

• Other Valve-Specific Components

Spare parts should be selected according to the valve manufacturer, valve type, size, pressure class, material, model, and component identification to ensure compatibility.