嘿咻视频无码免费区在线观看_亚洲可以免费在线观看的黄色网址_久青草国产97香蕉在线影院_再深点灬舒服灬太大了添网站_videossexotv极度另类中国_狠狠做深爱婷婷综合影院_亚洲性福利视频网站_成人女人A 级毛片免费软件_亚洲欧美日韩综合另类第一区_白嫩无码人妻丰满熟妇啪

Z43H Medium Pressure Flat Gate Valve produced and sold by Baigang valve group for natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other pipeline, venting system and steam storage device, used as hoist equipment. Z43 single gate with diversion gate plate valve for natural gas extraction and purification of long-distance pipeline. 

Z43H Medium Pressure Flat Gate Valve features:
 1. Sealing structure of the valve seat should be elastic pre-tightening, upstream and downstream sealing seat seal structure at the same time. Seat and seal are always face-to-face seals. 
 2. Seat has a self-cleaning function, and the valve is opened or closed during the direct flow of air erosion. Seat should be made of lubricated, non-abrasive material. 
 3. Valve actuator failure does not affect the rest of the valve, maintenance and replacement work can be carried out without removing the valve. 
 (1) Yoke Sleeve - The aluminum bronze yoke sleeve is equipped with a needle thrust bearing to minimize operating torque. 
 (2) Stem - thread length up to bracket; pin and spot welding; stable. 
 (3) Pressure Sealed - Simple to assemble, with sectional buckle and silver-plated mild steel washers to help disassemble and achieve the best bonnet seal. 
 (4) Seat Ring - Welded seat ring is perpendicular to the flow path for easy maintenance. 
 (5) Actuators - These valves can be equipped with electric, hydraulic or pneumatic actuators. DN300 following the standard configuration handwheel, DN350 above configuration helical gear operating mechanism. 
 (6) Yoke - The fully assembled yoke passes the seismic test for easy maintenance and installation of the actuator. 
 (7) Gland - Two-piece, self-adjusting gland to avoid being ejected. 
 (8) overall rear seat - hard surface, the longest service life. 
 (9) Flap - The spring-loaded flap regulates itself to reduce actuator torque demand. 
 (10) The overall stop - the overall casting bracket stopper device, positioning the assembly of the bracket valve, making the valve seat more stable and reliable. 

Z43H Medium Pressure Flat Gate Valve executive Standard:

Z43H Medium Pressure Flat Gate Valve product Performance Specifications:

Z43H Medium Pressure Flat Gate Valve main parts and materials: