Stainless steel waste car ball valve CAQ 999 silencing DQ41F 250

Stainless steel waste car ball valve CAQ 999 silencing DQ41F 250Product Introduction

DQ41F stainless steel low-temperature ball valve is a valve specially designed for low-temperature and cryogenic medium management systems. Its core function is to cut off or connect the medium in the pipeline, and it can also be used for fluid regulation and control.

This product is suitable for the management system of low-temperature liquid storage and transportation equipment, and is also widely used in industries such as oil fields, metallurgy, papermaking, pharmaceuticals, and municipal engineering. It can transport various media such as acids, alkalis, salts, water, steam, seawater, and coal gas. In addition, it also occupies an important position in the fields of petroleum refining, long-distance pipelines, chemical industry, and electricity, and is an important mechanical product closely related to production and construction, * * * construction, and people's lives.

Core characteristics and advantages of DQ41F stainless steel low-temperature ball valve

Performance characteristics: It has the characteristics of flexible switching and reliable sealing. The sphere is processed by precision grinding technology, with high surface smoothness, which can effectively reduce fluid resistance. It is also equipped with low-temperature resistant sealing materials, which can maintain good sealing performance at extremely low temperatures. At the same time, some models also have anti-static function, which enhances reliability by setting springs between the ball, valve stem, and valve body to export static electricity.

Structural advantages: simple structure, relatively small volume, light weight, easy maintenance; Unrestricted by installation direction, the flow direction of the medium can be arbitrary; No vibration, low noise, suitable for frequent operation, quick opening and closing, lightweight.

Weather resistance: Suitable temperature range is -196~450 ℃, can work normally in extremely cold environments, and has * * anti freezing performance.

Installation points of DQ41F stainless steel low-temperature ball valve

DQ41F stainless steel low-temperature ball valve should generally be installed horizontally in pipelines. Before installation, it is necessary to carefully inspect the valve and remove any damage caused during transportation and storage. At the same time, attention should be paid to whether the screws in each part are balanced and whether the lifting (movement) is flexible. Valves should be installed in places without severe vibration and impact, as well as in locations where the valve is used without damage.

Maintenance and upkeep of DQ41F stainless steel low-temperature ball valve

storage requirements

Valves should be stored as a whole in a ventilated and dry warehouse, and stacking or outdoor storage is strictly prohibited. Both ends of the valve diameter should be blocked with plates.

Daily inspection and replacement

Seal inspection: According to the performance and service life of the medium, the PTFE sealing ring on the top of the valve body and the PTFE sheet on the orifice plate should be regularly inspected. If any damage is found, it should be replaced in a timely manner before use.

Valve face inspection: If damage is found on the valve face, it should be immediately stopped and repaired with specialized materials, or entrusted to relevant production units for production.

Avoid medium alternation: It is advisable to avoid alternating the use of acidic and alkaline media (except for neutralization reaction media) as much as possible to avoid shortening the lifespan.

Blockage handling

When the discharge is blocked, a metal rod or hard tool can be used to clear it, but care should be taken not to damage the contact surface between the valve disc and the sealing ring.

Cleaning precautions

There are differences in the cleaning methods for high-pressure ball valves made of different materials. The selection of cleaning agents should ensure that they do not cause harm to the ball valve itself and can clean the interior thoroughly. Soft oil absorbing fabrics can be used for cleaning.