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L     1   4 ---   0     3   1   0   C --- 1   3   S   T
Àý×Ó£ºDN150£¬150°õ¼¶£¬½ðÊôÃܷ⣬Öý²»Ðâ¸Öµ¶Õ¢·§¡£
Example: 6¡±, lug, 150 class, metal-seated, cast, stainless steel knife gate valve.
 
A
 Á¬½Ó·½Ê½
TYPE OF CONNECTION
¡¡ B ¶Ôº¸
Butt weld		 N ¶Ô¼Ð
Wafer
¡¡ C ×éºÏʽ
Combination		 P ·¨À¼B16.47£¬ÏµÁÐB (API 605)
Flanged B16.47 series B (API 605)
¡¡¡¡   £¨³Ð²åº¸½Ó/ÂÝÎÆ£©
(socket weld/threaded)		 R ·¨À¼»·Á¬½Ó
Flanged ring joint
  D DIN ·¨À¼
DIN flanged		 S ÂÝÎÆ
Threaded
  E º¸½ÓÂÝ˨¶Ôº¸
Welded stubs butt weld		 T ÏâǶ×ê¿×ºÍ¹¥Ë¿
Studded drilled & tapped
¡¡ F ·¨À¼ B16.5 (B16.47£¬ÏµÁÐA)
Flanged, B16.5 (B16.47 series A)		 U δ×ê¿×·¨À¼
Undrilled flanges
  G С»¬¼üºÍ¼ü²Û
Small tongue and groove		 X ¶Ôº¸£¨ÖмäµÈ¼¶£©
Butt weld(intermediate class)
  H ²å×ùÐÎ
Hub ends		 W ³Ð²åº¸½Ó
Socket weld
¡¡ L ͹¶ú
Lug		 Z º¸½Ó͹¶ú³Ð²åº¸½Ó
Welded stubs socket weld
¡¡ ¡¡ ¡¡ ¡¡ ¡¡
B
 ͨ¾¶
SIZE OF CONNECTION
 

¡¡¡¡Óû§Ê¹ÓÃÏÂÁÐÊý×ÖÑ¡ÔñÌض¨µÄ·§ÃÅͨ¾¶×÷Ϊ·§ÃÅÐͺţ¨B£©µÄÒ»²¿·Ö£¬»òÁíÐÐÖ¸Ã÷·§ÃÅͨ¾¶¡£
¡¡¡¡Customers have the choice of specifying valve size as part of the valve figure ("B") using the numbers below, or indicating valve size separately.

¡¡¡¡ÀýÈ磺
¡¡¡¡L14-0310C-13SL£¨·§ÃÅͨ¾¶×÷ΪÐͺŵÄÒ»²¿·Ö£©
¡¡¡¡6"L-0310C-13SL£¨·§ÃÅͨ¾¶ÁíÐÐÖ¸Ã÷£©
¡¡¡¡EXAMPLES:
¡¡¡¡L14-0310C-13SL (valve size is part of figure number)
¡¡¡¡6¡±L-0310C-13SL (valve size is shown separately)
08 2" (50) 15 8" (200) 21 18" (450) 28 28" (700)
09 21/2 (65) 16 10" (250) 22 20" (500) 30 30" (750)
10 3" (80) 18 12" (300) 23 22" (550) 32 32" (800)
12 4" (100) 19 14" (350) 24 24" (600) 34 34" (850)
14 6" (150) 20 16" (400) 26 26" (650) 36 36" (900)
               
C
 °õ¼¶
CLASS
¡¡ 0 150    
¡¡ ¡¡ ¡¡ ¡¡ ¡¡
 
D
 ·§ÃÅÀà±ð
VALVE TYPE
¡¡ 31 ½ðÊô·§×ù
Metal seat		 34 Çãб·§°êÖ¹»Ø·§
Tilting disc check valve
¡¡ 32 Èí·§×ù
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