Products
Flange Process Picture
 
Butterfly Valve
High Performance Butterfly Valve
Technical Data

PRODUCTS

STC : WAFER TYPE BOOT SEAT DESIGN VALVE
STL : LUG TYPE BOOT SEAT DESIGN VALVE

STL-SR : LUG TYPE CARTRIDGE SEAT DESIGN VALVE
STC-SR : WAFER TYPE CARTRIDGE SEAT DESIGN VALVE


AL-STC : LIGHT WEIGHT ALUMINUM BUTTERFLY VALVE

U-SECTION : LARGE DIMATER BUTTERFLY VALVE

ST DF : DOUBLE FLANGED BUTTERFLY VALVE

ST GR : GROOVE TYPE BUTTERFLY VALVE

ST DUO : DUO CHECK VALVE


FEATURES

1. Available range
:
- Size : 2” ~ 48”
- Type: Wafer , Lug
- Pressure Rating: Class 125/150
- Body Material: Cast Iron, Ductile Iron and Stainless Steel
- Seat Type: Standard Boot , Cartridge Type
- Operation: Lever , Gear
- Drilling: ANSI 125/150, JIS 5/10, DIN PN 10/16

2.Standard Features
1) Available in tapped lug body or wafer design with common drilling (universal) including ANSI 125/150, JIS 5/10K, DIN PN 10/16.

2) One - piece body construction of Ductile Iron, Cast Iron or Stainless Steel design comples with API 609, MSS SP 67, and ISO 5752.

3) ISO 5211 mounting pad with square shaft permits direct mount actuation for both Manual (Lever & gear), pneumatic and electric operations.

4) Teflon stem bushing to assure long life even during extended period of activity.
   Lowers operating torque for easy manual operation and maximize shaft support.

5) High strength two-piece stem eliminates taper pins or disc screws which often fail prematurely through abrasion, corrosion or fatigue.

6) All disc castings are spherically machined & polished for extended seat life & bubble tight shut off.

7) Seat type available in both encapsulated phenolic backed Cartridge seat and Boot design. Cartridge design seat permits easy change without special tools

8) Conform to API 598 and BS 5155. Shell tested to 150% and seat tested to 110% of maximum working pressure

9) Lug body valves are rated for 150 PSI in dead end service.

3. Valve Rating
Top flange mounting pad: ISO 5211
Basic Design: API 609, MSS-SP-67, BS 5155, ISO 5752, DIN 3202
Shell/Seat Test: API 598, MSS-SP-61
Shell: 400 psig
Closure: 2” ~ 12” : 255 psig
            14” ~ 24” : 188 psig


+ STL

+ STL-SR

+ STC

+ STC-SR

+ SS STL

+ SS STC

+ AL-STC

+ INDICATE PLATE

+ U-SECTION BFV
ST & H Corp.
Tel : 82-51-7444680
Fax :82-51-7444670~1
74 Jwadongsunhwan-Ro,
Haeundae-Gu, Busan,
Korea. 48083