We are manufacturer of Plastic Floor Mat Mold in China, if you want to buy Nonstandard Chemical Fiber Spinneret,High Abrasion Resistance Spinneret,Spinneret Plate please contact us.
The spinneret is one of the important parts of the spinning machine. Its function is to turn the viscous polymer melt or solution through the micropores into a trickle with a specific cut surface, and pass through the solidification medium. Or the coagulation bath solidifies to form filaments. In the spinning process, the spinneret will be blocked by mechanical impurities, carbon fiber, gel, etc., the spinneret hole, when the spinneret hole is partially blocked, the spinning solution will overflow on the outer surface of the spinneret/plate, resulting in raw filament The size is uneven and there are problems such as fineness and hairiness. When the spinneret hole is completely blocked, it will greatly increase the rate of fiber breakage, which has a great impact on the fiber quality, so the spinneret must be cleaned regularly.
Spinneret Plate Plastic Floor Mat Mold,Nonstandard Chemical Fiber Spinneret,High Abrasion Resistance Spinneret,Spinneret Plate Changzhou Jier Precision Machinery Manufacturing Co., Ltd. , https://www.jier-spinneret.com
Vacuum system valve selection
Diameter DN65 or less Pipeline Control Valves Ball Valves: Cold working pressure of these valves should be 600 psi, two piece cast bronze body, PTFE seat, standard runner, separate packing nut, adjustable stem Filler, blow out stem and chrome-plated brass / bronze ball. Where pressure drop is a concern, valves that do not reduce the diameter of full-flow ball valves or similar structures are required. The valve connection port should have an ANSI thread of sufficient depth, or have a longer weld port, and be manufactured in accordance with the American Society of Valve and Fitting Manufacturers Standards Association MSS-SP110. Standard flow path can be used valves: the United States NIBCO T-580-70 ball valve (thread); S-580-70 ball valve (welding) can be used without shrinking full flow valve: the United States Nibo Ke T-585- 70 ball valve (thread); S-585-70 ball valve (welded) check valve: check valve diameter DN65 and below should be used Y-shaped spin-on structure and in accordance with the American Society for Valve and Fitting Manufacturers Standardization Association MSS-SP80 Manufactured in 125 lb. working grade, bronze body complying with ASTM B 62 standard, with PTFE seat disc or spring-actuated lift check valve with flexible seat. Valve connections should be threaded or welded. Valves can be used: 125 lb. US NIBCO T-413-Y check valve (thread); S-413-Y (welded) US NIBCO T-480-Y spring-driven lift check valve ); S-480-Y (Weld) Line Control Valves Butterfly Valves Above DN 65: These valves shall be lugs or international standard IPS tubular connection port body and shall be constructed in accordance with the American Society for Valve and Fitting Manufacturers Standards Association MSS- SP67 standard; diameter DN50 ~ DN300 rated working pressure is 200 psi non-impact cold water, DN350 above is 150 psi. The body for thermal insulation has a 2-inch lengthened pipe made of cast iron or ductile iron. Disc material is plated ductile iron or aluminum bronze alloy with Buna-N seat and seal; or Buna-N coated disc with polymer-coated valve body. Stem should be 400 series stainless steel, the stem can not be exposed on the butterfly fasteners. Diameter DN65 to DN150 should be configured with 10 position throttle control handle; diameter DN200 butterfly valve above should be configured gear operating mechanism. Lugs and tubular butterfly valves should be used as shut-off valves and can be used at the end of the pipe at full pressure without the need for a downstream flange. Handle operated valves should be suitable for locking in the open or closed position. Available valves: Lug body, ductile iron disc plated NIBCO LD3110-3 butterfly valve (handle operating mechanism); LD3110-5 butterfly valve (gear operating mechanism) lug body, aluminum bronze disc USA NIBCO LD2100-3 butterfly valve (handle operating mechanism); LD2100-5 butterfly valve (gear operating mechanism) tubular valve body, the rubber coated disc NYSE GD4775-3 butterfly valve (handle operating mechanism); GD4775-5 butterfly valve (Gear Operated Mechanism) Check Valve: Non-return valve with DN65 and above shall be of plate type (wafer type) with stainless steel spring, bronze valve plate and rubber valve seat in accordance with American Society for Testing and Materials ASTM A 126 Class B standard or A 48 standard cast iron body with 125 lb. or 150 lb. flange. Available valves: US NIBCO W-920-W, KW-900-W or W-910-W spring-driven lift check valve