BJ65W Y-shaped welded insulation globe valve

BJ65W Y-shaped welded insulation globe valveProduct Introduction

BJ65W Y-shaped welded insulation globe valve is a type of valve that usesAngle structure welding formThe insulation globe valve is mainly made of carbon steel or stainless steel, which has excellent insulation and sealing performance. Its design feature is to connect pipelines through welding, which is suitable for scenarios that require reducing medium temperature loss or preventing medium solidification.

Core functions and application areas of BJ65W Y-shaped welding insulation globe valve

core functionality

Insulation and anti condensationThrough insulation jacket design (some models of jackets are welded between valve flanges, with connecting ports on the sides and bottom), heat sources such as steam can be introduced to prevent high viscosity media (such as asphalt, resin, etc.) that are prone to solidification and crystallization at room temperature from solidifying in the pipeline, ensuring smooth flow of the medium.

Forced sealingIt belongs to a forced sealing valve, and pressure needs to be applied to the valve disc when closing to ensure that the sealing surface does not leak. The flow direction of the medium should be consistent with the direction of the arrow on the valve body.

Installation precautions

Installation locationThe shut-off valve operated by handwheel and handle can be installed at any position in the pipeline, but it should be ensured that the operator can easily operate and maintain it.

Installation directionThe flow direction of the medium should be consistent with the direction of the arrow shown on the valve body. According to the regulations of China's valve industry, the flow direction of globe valves must be from top to bottom.

welding connectionBJ65W Y-shaped welded insulation globe valve is usually connected by welding. When installing, attention should be paid to the sealing and firmness of the welding joint to ensure a tight and leak free connection between the valve and the pipeline.

insulation jacketThe BJ65W Y-shaped welded insulated globe valve is equipped with an insulation jacket, which is welded between the two flanges of the valve. There are two connection ports for the insulation jacket on the side and bottom of the valve. During installation, it should be ensured that the connection port of the insulation jacket is correctly connected to the external heating medium (such as steam) to ensure the insulation effect.

Support and fixationDue to the heavy weight of the valve, appropriate support and fixing measures should be considered during installation to prevent damage to the valve due to gravity or vibration.

Maintenance precautions

regular inspectionRegularly check the sealing performance of the valve to ensure that there is no leakage when the valve is closed. If a leak is found, the sealing surface should be checked promptly for damage or impurities, and cleaned or replaced.

Lubrication and maintenanceRegularly lubricate and maintain the valve stem and transmission components to reduce friction and extend the service life of the valve. The selection of lubricants should be determined based on the working temperature and medium characteristics.

Cleaning and maintenanceWhen the pipeline is first used, there may be a lot of dirt inside. You can slightly open the shut-off valve, use the high-speed flow of the medium to wash it away, and then gently close it (do not close quickly or abruptly) to prevent residual impurities from damaging the sealing surface.

Handwheel and handle maintenanceIf the handwheel or handle is damaged or lost, it should be immediately equipped and cannot be replaced with a flexible wrench to avoid damaging the valve stem square, causing ineffective opening and closing, and leading to accidents in production.

Temperature change processingSome media cool down after the shut-off valve is closed, causing the valve components to contract. The operator should close it again at an appropriate time to ensure that there are no fine gaps on the sealing surface. Otherwise, the media will flow through the gaps at high speed, which can easily erode the sealing surface.

Electric or pneumatic driveIf the valve is equipped with an electric or pneumatic drive device, the electrical and mechanical parts of the drive system should be checked regularly to ensure their normal operation. Electric welding globe valves have the characteristics of high reliability, tight sealing, easy operation, space saving, and remote control, but it is necessary to regularly check the working status of the motor and control system.

Common faults and their solutions

Sealing surface leakageIt may be due to wear on the sealing surface or the attachment of impurities. The solution is to clean the sealing surface or replace the sealing component.

Valve stem stuckIt may be caused by bent valve stem or tight packing. The solution is to adjust the tightness of the packing or replace the valve stem.

Difficulty in operationIt may be due to poor lubrication of the valve stem or blockage of internal dirt. The treatment method is to strengthen lubrication or clean the inside of the valve.

Poor insulation effectThis may be due to damage to the insulation jacket or insufficient supply of heating medium. The solution is to repair the insulation jacket or increase the supply of heating medium.