Proceedings of the 2nd International Conference on Developments in Valves and Actuators for Fluid Control: Manchester, England: 28-30 March 1988

ISBN-13: 9783662114650 / Angielski / Miękka / 2014 / 361 str.

Bchd Peter Wood; Lorraine Grove

Opis

The control of bulk fluid flows in pipelines is essential for safe and efficient plant operation, whether the product is oil, gas, process liquid, chemicals or water. Problems such as leakage and valve jamming have been reported as common by offshore industrial users, who demand longer life and greater reliability. Manufacturers have responded with new concepts and new materials, including a variety of plastics, in an effort to meet the needs of complex modern systems operating at high temperatures and pressures. This meeting provided a forum for system designers, operators, manufacturers and researchers to discuss methods of improving valve performance and promoting better valve selection and specification. Ways in which the valve industry can use techniques, such as computer-aided-design and product quality monitoring, to keep pace with future developments, for example, subsea oil and gas stations, were also covered.

Spis treści

A1 A variable orifice rotary control valve.- A2 Bellows seals for rotary (1/4 turn) valves.- A3 Contiguous sealing of metal seated butterfly valves.- B1 Testing of valves and actuators in fire environments.- B2 Cold water leak detection in high pressure stainless steel isolation valves using ultrasonic noise emission.- C1 Electronic actuator design.- C2 New trends in pneumatic actuator designs.- D1 Plug vibrational tendencies of top guided throttling control valves.- D2 A one dimensional quasi-steady model for prediction of safety valve lift characteristics.- D3 Use of damping devices to control the stability of spring loaded safety valves operated in liquid service.- E1 The development and applications of duplex stainless steel for control valve equipment.- E2 New and improved high nickel alloy castings.- E3 Development in soft seated trims for control valves.- E4 Engineering thermoplastics in actuator construction.- F1 Sizing of low pressure air valves for safe filling and draining of pipelines.- F2 Control valve sizing for non-ideal fluids.- G1 Experimental investigations to determine flow rate capacities and noise emission during cavitation and flashing in control valves.- G2 Universal method for quantifying the severity of a cavitating service.- H1 Tests of check valves at EDF development of a dampened check valve.- H2 Check valve closure behaviour; experimental investigation and simulation in waterhammer computer programs.- H3 Innovations in non-intrusive testing and trending of motor operated valves and check valves.- J1 Qualification of French pressurized water nuclear power stations valves.- J2 Lubrication and wear of valve headgear — a case study.