Name: Special Working Condition Butterfly Valve
Brand: Lotoke
SKU: 134711922

◆ The special structure valve is a special valve designed for special working conditions. New lotoke provides special solutions for special working conditions, such as: mucus, medium with particles, solid powder, crystallization medium, liquid high temperature differential solidification medium, fiber slurry, high temperature melt Salt, two-way pressure heating primary mesh butterfly valve, ultra-low temperature, LNG butterfly valve, high pressure 2500LB butterfly valve, high temperature 1100 degree butterfly valve, explosion-proof, fire-proof, anti-static butterfly valve, heat preservation, purge special structure butterfly valve.

Design Feature+

◆ Thriple eccentric all metal bi-direction butterfly valve

The principle of triple eccentric elliptical cone sealing is two-way sealing, adopting all-metal sealing pair structure, and the sealing pair is detachable. It is convenient to replace the damaged seal pair on site. It is suitable for high temperature, high pressure, two-way pressure and other working conditions, and can be used for flow adjustment of adjustable pipelines.

◆ Thriple eccentric bi-direction butterfly valve

Adopting the unique triple eccentric elliptical cone sealing principle for two-way sealing, on the basis of the original triple eccentric all-metal sealing pair, a PTFE ring is added to the seat sealing part, so that half of the sealing pair adopts metal to PTFE sealing. Increase the reliability of the valve, play a double sealing effect, and a unique fireproof structure. Zero leakage, stable performance. It is suitable for working conditions with temperature less than 250℃ and zero leakage working conditions under low temperature environment.

◆ Double eccentric high performance butterfly valve

Double eccentric design, using PTFE valve seat, light torque. Suitable for working conditions below 200℃.

◆ Butterfly valve with inspection hole

In order to facilitate on-site maintenance, the valve has a detection hole design, which can diagnose and repair the valve online. It is suitable for underground and other environments where it is not convenient to disassemble the whole machine, or in flammable and explosive, surfacing butterfly valve pipelines.

◆ Inverted sealing butterfly valve with stem

Unique stem back pressure valve seat design, with a drive device to lift the upper stem to form an inverted seal to prevent the medium from entering the upper space, and prevent the medium from contacting the packing and causing the medium to leak. The packing can be replaced under pressure. It is suitable for high temperature, high pressure and hazardous media, especially the working conditions where flammable and explosive gas leaks and contact with air.

◆ Insulation jacket butterfly valve

The valve body is a double-layer structure, during which a medium with a certain temperature can be circulated to maintain the overall temperature of the valve and prevent the medium in the valve cavity from crystallizing. Mainly used in petrochemical, metallurgical and pharmaceutical, food and other systems. To transport high-viscosity media that solidifies at room temperature.

◆ Sealing surface with purge butterfly valve

A row of small holes is mainly opened in the valve seat, and a hole is opened on the valve body at the same time, so that the seat corresponds to the hole of the body. The external steel pipe can be injected with grease to increase the sealing effect or to purge the crystal. It is suitable for working conditions where the sealing requirements are relatively high and crystals are easy to form on the sealing surface.

◆ Packing butterfly valve

The valve is specially designed for the working condition of crystalline medium. The valve adopts a through-shaft design. The unique upper and lower stem double packing seal structure adds double packing seals at the upper and lower shaft sleeves to prevent the medium from entering the shaft sleeve. A filter screen structure is used at the shaft sleeve to prevent crystallization, and external force can be used where the valve stem extends out of the valve body to double the output torque and open the valve forcefully in emergency. (Note: Special requirements can increase the purging device at the shaft sleeve). It is used in valves under special conditions and under crystallization medium conditions. Increase the sealing performance of the stem.

◆ Sleeve with purge butterfly valve

A purge mechanism is added to the shaft sleeve of the valve stem, and a shaft sleeve with a mesh structure is adopted. Suitable for valves under special working conditions and working conditions of crystallization medium. Prevent crystallization of the medium at the shaft sleeve and lock the valve stem.

◆ Anti-static butterfly valve

Mainly add a spring and steel ball structure at the bottom of the valve to make the valve a channel to release static electricity. Suitable for working conditions with high sealing requirements. Electrostatic protection technology is used in the petroleum industry, rubber industry, and military fields to reduce losses caused by static electricity.

◆ Extension bracket

The valve adopts an extended neck design. By adding an extended neck, the operation of the valve can increase the space distance. It is suitable for deepened pipelines, which can be operated through the ground, and high temperature and low temperature pipelines.