National standard globe valve

Product Overview:

A globe valve is a valve in which the shut-off (disc) moves along the centerline of the valve seat.Depending on this form of movement of the disc, the change in the seat port is the same as the discThe itinerary is proportional to each other.Due to the opening or closing stroke of the stem of this type of valveRelatively short ,And it has a very reliable cut-off function,And because the valve seat is openThe change of the mouth is directly proportional to the stroke of the disc, which is very suitable for convection flowRegulation of . Therefore, this type of valve is ideal as a shut-off or regulationand throttling use.

Specifications:

> size range: 1/2"-16" (DN15-DN400)

> Pressure Rating: ASME 150~2500LB(PN16~PN420) > temperature range: -46°C -600°C

> connection methods: flange, welding, threading, etc

> main material: carbon steel, stainless steel, duplex steel, alloy steel, etc

> sealing surface hardening treatment: surfacing Stellite alloy and nickel-based alloy

> operation mode: manual, electric, pneumatic, etc

Product Standards:

Design standard: GB/T12235

Structure length: GB/T12221

Connecting flange: GB/T9124

Test and inspection: GB/T26480

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Product Details

Features:

1. The globe valve is suitable for cutting off or connecting the pipeline medium in petroleum, chemical, thermal power stations and other working conditions with a nominal pressure of 1.6~42.0MPa (Class150~2500) and a working temperature of ≤600°C.

2. The switch stroke of the spool of the globe valve is small, and the sealing surface can withstand multiple switches, which is very suitable for the occasions that need frequent switches, in the process of opening and closing, due to the small friction between the spool and the sealing surface of the valve seat, it is more wear-resistant, and the manufacturing process is good, and it is easy to maintain.

3. The sealing surface is welded with Co-based cemented carbide, which has good wear resistance, corrosion resistance, scratch resistance and long service life.

4. The valve stem has been quenched and tempered and nitrided on the surface, which has good corrosion resistance and scratch resistance.

5. Nominal pressure≥15.0MPa(Class900) The middle cavity adopts a self-tightening sealing structure, and the sealing performance is enhanced with the increase of pressure to ensure the sealing performance.

6. The valve is equipped with an inverted sealing structure, which is reliable in sealing.

7. The material of the parts, the flange and the size of the butt welding end can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.

National standard globe valve