1、 Specifications and brief description

Specification: NPS1-28 (DN25-700), Class150~2500 (PN16-420)

Overview: Ultra high sulfur resistant gate valve

2、 Detailed information

Product Overview

The ultra-high sulfur resistant gate valve is a parallel single gate structure, with an integral cast or forged body and cover. The valve body and cover are connected by bolts, with full bore design, online maintenance, self-cleaning of the valve seat sealing surface, low torque, and no need for daily maintenance. As a control medium opening and closing device, it is suitable for gas and liquid media with high sulfur content, and is widely used in natural gas, petroleum, chemical pipelines, and pipeline pump station outlets.

The design and inspection can comply with standards such as API 6D, GB/T 19672, JB/T 5298, API 598, GB/T 26480, etc. The fire safety meets the requirements of API 6FA and has passed test certification. NACE anti-corrosion and acid resistance are optional, and ISO 15848 low leakage is optional.

main features 

① Full bore design

② Double block discharge (DBB), floating valve seat, bi-directional sealing, reliable sealing

③ The valve seat sealing surface can be double sealed or metal sealed as an option

④ Online maintenance and replacement of valve seats, easy to disassemble and replace (when specifically required by the order)

⑤ Valve seat and valve stem emergency injection system

⑥ Anti-lock valve seat, self-cleaning sealing surface

⑦ Fireproof, anti-static, and anti-blowout stem

⑧ Automatic pressure relief protection in the middle chamber