Pneumatic Flanged Ball Valve

Automatic Valve Manufacturer, Pneumatic Ball Valve, Pneumatic Flanged Ball Valve Valve Model Preparation instructions 1 、 Feature Code:  The characteristic code of ou「 company is . 2、 Special Demand Code:  K=Anti-sulphur Type,  D=Low-temperature Type,  B=Heat-insulating Jacketed Type,  L=Lengthened Stem Type,  Y = Special Type fo「 Oxygen, W=Sanitary Type、 V= VType Ball 3 、 Valve Type code:  Z= Gate Valve,  J=Stop Valve、 O= Ball Valve、 D = Butterfly Valve、 G = Diaphragm Valve、 X = Cock Valve 4,  Codes for Pneumatic Manne『s: 6 = Pneumatic,  6S = Pneumatic-Manual,  6K = Pneumatic-Normal Open, 68 = Pneumatic-Normal Close 5、 Connecting Manner Code:  1 = Inside Thread Connection,  2 = Outside Thread Connection,  4 = Flanged Connection,  6=Weldi吨， 7= Wafer Connection,  8 = Buckle Connection 6、 Structure Form Code:  Gate Valve  1 = Wedge Single Flashboard,  2 = Wedge Double Flash board,  O = Wedge Elastic Flashboard, 3 = Paralleled Single Flash board,  4 = Paralleled Double Flash board Stop Valve  1 = Floating Straight-through Type,  4 = Angle Type,  5 = Straight-flow Ball Valve 1 = Floating Straight-through Type,  4 = Floating Type L-shaped Three-way,  5 = Floating Type T -shaped Three-way, 7 = Fixed Typed Straight-through Type,  8 = Fixed Typed L-shaped Three-way,  9 = Fixed Type L-shaped Three-way, O = Hemisphere through Butterfly valve  1 = Center-line Straight-plate Typed,  3 = 3-D Eccentric Type Diaphragm valve 1 = Ridge Typed,  3 = Stop Valve Cock Valve  3 = Staight-through Type,  4= T-shaped Three-way Type,  5 = Four-way Type 7,  Codes for Sealing Surface Material or Lining Material:  F = Polytetrafluoroethylene,  P = Para-Position polyphenylene, N = Nylon,  X = Rubber,  H =Alloy Steel,  Y = Hard Allo