Valve Types and Features The three basic functions of valves are: 1. to stop flow, 2. to keep a constant direction of flow, and 3. to regulate the flow rate and pressure. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Butterfly valve

Valves are an essential part of any piping system conveying liquids, vapors, slurries, gases, and mixtures of liquid, and gaseous phases of various flow media. Valves are the most costly rigid piping components in a plant. They can account for up to 20% to 30% of overall piping item costs for a process plant.

The company offers safety and relief valves with brass, bronze, cast iron, carbon steel and stainless steel body construction. Available in inlet sizes from 1⁄4" through 6", Conbraco valves are certified for steam, air/gas and liquid service, with set pressures up to 900 psi.

Safety Valve ; Cast Steel Single Post Full Lift Safety Valve. CS-12. Cast Steel Single Post Full Lift Safety Valve. Flanged ; Cast Iron Double Post High Lift 

Fig. 3 – PARCOL conventional safety relief valve series 3-5400 The off position of the lifting lever shall be fixed and sealed against misoperation. When no leakage of the discharge fluid is

Fig. 1: Types of Manifold Valves 5-Way Manifold Valve A 5-way manifold valve or 5-valve manifold has two block valves, one equalizing valve, and two vent or test valves. The block valves on the high and low-pressure sides are designated with blue handles, the equalization valve in a green handle and the bleed valves are designated with red handles.

Safety Valve Types. There are different safety valve types: valves with a spring-loaded mechanism, valves with balanced bellows, and pilot-operated safety valves. Each type has an advantage in a specific situation. Spring mechanism. This safety valve is the most commonly used version, called direct-acting safety valves because it is only held

Flanged Safety Relief Valves. Type 442 DIN. Plain lever H3. Open bonnet. Conventional design. Type 441 DIN. Packed lever H4. Closed bonnet.

Types of check valves Safety-Relief Valves ChE 4253 - Design I. PRESSURE RELIEF VALVES Sizing Valves for Liquid Services +Piping: +Viscous liquid: +Pressure vessels: P d Q S A 27 .2 = P d K u Q S A 27.2 = P d K p Q S A 27.2 = ChE 4253 - Design I. Title: Microsoft PowerPoint - valves [Compatibility Mode] Author: baga0791 Created Date:

SAPAG STEAM SAFETY VALVE SERIES 9100 / SAFETY VALVE SELECTION SIZING The safety valve is defined by its orifice size. The orifice sizes are designated by figures corresponding to

Multiple Pressure Solenoid and Air Operated Relief Valves. Vickers® These balanced piston type valves are used for complete manual operation of.