1、 Specifications and brief description

Specification: NPS1/2-48 (DN15-1200), Class150-1500 (PN16-250)

Description: Z20 cast steel open plate gate valve with diversion hole support, Z21 open plate gate valve without diversion hole support

2、 Detailed information

Product Overview

The open type flat gate valve has the characteristics of double-sided forced sealing of the gate, full bore design, online maintenance, and no need for daily maintenance. It plays a role in guiding/cutting off pipelines and is suitable for media such as oil, gas, water, steam, etc. It is widely used in geothermal steam, natural gas, oil production, transportation, gathering pipelines, and storage devices.

The design and inspection can comply with standards such as API 6D, GB/T 19672, API 598, GB/T 26480, etc. The fire safety design meets the requirements of API 6FA, and the NACE anti-corrosion and acid resistance are optional.

main features 

① Full bore design

② Top mounted valve body structure, capable of online maintenance and replacement of internal components

③ Bidirectional forced sealing, reliable sealing

④ The valve seat sealing surface can be double sealed or metal sealed as an option

⑤ Fireproof, anti-static, and anti valve stem spray

⑥ Automatic pressure relief protection in the middle chamber, with pressure relief methods according to user requirements

⑦ Sealing surface frictionless opening and closing, low switching torque