direct current typeInsulated globe valve

The structural characteristics of the globe valve are as follows:
Bolted valve cover, rising stem bracket, and metal sealing surface of lifting valve stem.
Connection form of valve body and valve cover for insulation globe valve BJ45W
Class150~Class900 use bolted valve covers; Class1500~Class2500 use self sealing valve covers.
Insulation globe valve BJ45W valve cover gasket form
Class150~Class300 globe valves use stainless steel graphite wrapped gaskets; Class600 globe valves can use stainless steel graphite wrapped gaskets or metal ring gaskets; Class900 globe valves can use metal ring gaskets, while Class1500~Class2500 globe valves use self sealing metal rings.
Insulated globe valveBJ45W操作形式
In general, handwheels, impact handwheels, or gear transmission methods are used, and chain wheel transmission or electric drive can be used according to user needs.
Insulation stop valve BJ45W packing seal
Usually, molded flexible veneers are used as filler materials, and PTFE or composite filler materials can be provided according to user needs. The surface roughness of the contact between the packing and the packing box is 3.2 μ m, which can ensure a tight and freely rotating joint between the valve stem and the packing contact surface. The precision machined valve stem sealing surface roughness of 0.8 μ m can ensure reliable sealing of the valve stem.
Spring loaded packing impact system
If required by the customer, a spring-loaded packing impact system can be used to provide durability and reliability of the packing seal.
Upper sealing seat design
All the globe valves provided by our company have a reverse sealing design. Normally, the valve seat design of carbon steel globe valves adopts a separated reverse sealing structure, while the reverse sealing of stainless steel globe valves can be directly processed or processed after welding. When the valve is in the fully open position, the sealing surface of the reverse seal is very reliable. Although there is a reverse seal according to the standard API600, it does not serve as a basis for replacing the packing under pressure.
valve seat
Carbon steel globe valve seats are usually made of forged steel material, and the sealing surface of the valve seat can be spray welded with hard alloy according to customer requirements. Globe valves with NPS ≤ 10 '' adopt a separated threaded screw in valve seat, and if the user needs to weld the valve seat structure, it can also be provided; The NPS ≥ 12 globe valve adopts a welded valve seat structure; The valve seat of stainless steel globe valve is generally made of integral or directly machined after welding hard alloy on the body. If the user has a need, the stainless steel globe valve seat can also adopt a separate threaded and welded seat structure.
Valve stem design
Made using integral forging process, with the minimum diameter determined according to standard requirements.
stem nut
Normally, the valve stem nut material is ASTM A439D2. Copper alloy and other materials can be used according to user requirements. For large-diameter globe valves (NPS ≥ 10 '' Class150; NPS ≥ 8 '' Class300; NPS ≥ 6 '' Class600; NPS ≥ 5 '' Class900), the stem nut and stem bracket are designed with rolling bearings, which can effectively reduce the opening torque of the globe valve and make it easy to open and close.

Quanli Ordering Notice: (National Standard)
1、 A: Product name, model, nominal diameter B: Medium and temperature, pressure range C: Are there any accessories, delivery time, special requirements, etc. for us to correctly select for you.
2、 If the valve model of our company has already been selected by the design unit, please place an order directly with our sales center based on the valve parameters.
3、 When the situation you are using is very important or the environment is complex, please provide design drawings and detailed parameters, and our engineers and experts will focus on reviewing and analyzing for you. We can provide you with professional solutions, including design, customization, complete sets, operation, and service. We have always been committed to being a leader in the valve industry, providing you with the latest valve knowledge, the best service, and the best technical consultants. Thank you for visiting our website 【 www.quanlivalve. com 】. If you have any questions, you can call us and we will do our best to provide you with high-quality service. Our factory specializes in providing various types of valves such as ball valves, butterfly valves, gate valves, globe valves, check valves, pressure reducing valves, safety valves, marine valves, oilfield valves, water control valves, etc.

Special shut-off valve

1、 Overview of BJ45H/W angle insulation globe valve:

This valve is suitable for pipelines in the chemical and fertilizer industries, and the inclusion of steam in the jacket can prevent the crystallization of the medium.

2、 Structure picture of BJ45H/W angle insulation globe valve:

3、 Design standard for BJ45H/W angle insulation globe valve:

Design and Manufacturing: GB12233
Flange size: JB/T79 GB9113
● Structural length: GB12221
Inspection and Testing: GB/T13927

4、 Performance Specification for BJ45H/W Angle Insulated Stop Valve:

5、 BJ45H/W angle insulation globe valve main component materials: