1、 Specifications and brief description

Specification: NPS1-16 (DN25-400), Class150-1500 (PN16-250)

Brief Description: J20 Cast Steel Throttling/Stop Blowdown Valve

2、 Detailed information

Product Overview

The valve sleeve type sewage valve has the characteristics of large channel sewage discharge, erosion resistance, reliable sealing, anti clogging, self-cleaning sealing surface, small switching torque, and no need for daily maintenance. It is widely used in oil, natural gas, gas and other pipeline gathering and transportation devices for sewage discharge, and can meet the bad conditions of large particle impurity discharge.

The design and inspection can comply with standards such as GB/T 26145 and GB/T 26480. The fire safety design meets the requirements of API 6FA, and the NACE anti-corrosion and acid resistance are optional.

main features 

① The valve seat is sealed with both soft and hard sealing, and the sealing surface is welded with hard alloy, ensuring reliable sealing

② Special structural design of valve core, low opening and closing torque

③ Special hardening treatment on the surface of valve sleeve, valve core, and valve seat, resistant to medium erosion

④ The pre tightening force of the valve stem packing is convenient and adjustable, making it easy to operate

⑤ Self cleaning and slag removal structure in the sealing area, and automatic cleaning of impurities in the sealing area by the medium

⑥ A large drain hole is set at the bottom of the valve body, which can be opened if necessary to clean the dirt inside the valve

⑦ Reasonable internal structure design, low noise and vibration during valve operation

⑧ Large sewage channel, anti clogging, meeting harsh sewage conditions