Products Introduction

KML086
Cryogenic Butterfly Valve

Model

KML086

Caliber

DN50~DN600

Pressure

CLASS150~CLASS600

Temperature

-196℃~80℃

Connection method

Flange, Wafer, Lugged, BW, etc

Design Standards

API 609,ASME B16.34, BS 6364, ASME B16.10,ISO 7005 etc

Material

ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3, ASTM A351 CF3M. etc

Operation

Lever, Gear, Pneumatic, Electric, etc

Product Overview

The cryogenic butterfly valve is an integrated valve composed of a low-temperature butterfly valve and an electric actuator. In order for the low-temperature butterfly valve to operate safely and reliably at low temperatures, the valve parts have undergone cryogenic treatment before precision machining. The valve cover adopts a long neck structure to protect the sealing effect of the packing. Widely used in pipeline equipment with media such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, and liquefied petroleum.

Structural Features

Characteristics of cryogenic butterfly valve: The material of the pressure bearing parts of the electric cryogenic butterfly valve can withstand the expansion and contraction caused by changes in medium temperature. The structure of the sealing part will not undergo permanent deformation when the temperature changes. At cryogenic temperatures, the structural material is now not carbon steel, but austenitic stainless steel, bronze, and Monel. In such a temperature range, the operation of the valve is generally to control extremely cold gases and liquefied gases. Commonly encountered are air, nitrogen, oxygen, hydrogen, and helium.The elongated upper valve cover adopts a double seal with a joint valve shaft, ensuring the long-term stability of the sealing packing at low temperatures. It is widely used in the control of cryogenic fluid processes such as liquefied natural gas and air separation industries.

Performance Parameters