Product & Service

製品&サービス情報

FORGED STEEL LIFT CHECK VALVES

鍛鋼リフトチェック弁

構造 PROFILE and FEATURE

材料 MATERIALS

No. NAME of PARTS DESIGNATION JIS and ASTM Spec.
1 BODY Carbon and Alloy Steel
Integlal "STELLITE" Seat
JIS S25C
ASTM A105
ASTM
A182-F11
ASTM
A182-F22
2 COVER Carbon/Alloy Steel
3 VALVE DISC Stainless Steel
"STELLITE" Faced
JIS SUS 304
4 SPRING Stainless Steel JIS SUS 304
5 JOINT BOLTS Alloy Steel JIS SNB7 ASTM A193-B16
6 NUTS Carbon,Alloy Steel JIS S45C ASTM A194-Gr4
7 GASKET Spiral Wound Type Commercial

◆スプリング効果

1.輸送中の弁体の振動防止

2.締切性の向上

3.弁体作動時のセンター保持効果

注.
スプリング荷重は圧力損失にほとんど無関係な軽荷重ですので原則として垂直配管には使用できません。

◆Effect of Built-in spring

1. Prevention of valve disc vibration during transport

2. Improvement of shutting-off performance

3. Effect of holding center at the time of disc working

NOTE:
Spring load is a light load which affects scarcely the pressure loss, thus, it cannot be used in vertical piping as a rule.

寸法・質量 DIMENSIONS and MASS

SOCKET WELD ENDS

Style(Class) Nom.Size mm(in) L C Mass kg
Z344(600) 15(1/2) 84 50 1.5
20(3/4) 91 60 2.1
25(1) 111 70 3.5
32(1 1/4) 165 90 6.8
40(1 1/2) 165 90 6.8
50(2) 203 110 11.3

FLANGED ENDS

LL-1 LL-2 Note
152 165 LL-1
 JIS
   10K
   16K
   20K
   30K
 ANSI
   150
   300
LL-2
 JIS
   40K
 ANSI
   600
178 190
203 216
229 241
229 241
267 292

Dimensions in mm