KFTE High Performance Butterfly Valve both in Flange, Lug & Wafer features a carbon steel body and stainless steel body. High Performance Butterfly Valve is ideally suited for Commercial, Industrial, and Mechanical HVAC series. Both Body and Disc are carefully manufactured by Investment Casting Methods. Carbon steel body include powder coated epoxy finish, direct mount actuation, internally cast over-travel stopper, dual offset design, one piece blowout proof 17-4 PH; Stainless Steel Shaft with 316 stainless steel and graphite coated meshed stainless steel. Gland flange applies load against packing gland to prevent external leakage and is fully adjustable. KFTE High Performance Butterfly Valve provides bi-directional dead end services and includes an arrow on the body to indicate the preferred flow directions.
Design Standards
Design Standard: API 609
Size: 3"(DN80)-36"(DN900) Pressure: 150LB-300LB / PN16- PN40 Material: WCB, WCC, WC6, WC9, C5, C12, C12A, LCB, LCC, LC1, LC3, CF8, CF8M, CF3, CF3M, CF8C
Flanged End Connection: ASME B16.5 / ASME B16.47; EN1092-1
Face-to-Face: API 609 / ASME B16.10
Test & Inspection: API 609 / ASME B16.10
Fire-Safe: API 607
Low Fugitive Emission: ISO 15848-2015
NACE Construction: MR 0715
Double Offset Design
The unique sealing system also incorporates a double eccentric disc and shaft design to further extend the effectiveness of the seat. This unique offset design transmits a camming action to the disc and swings the disc completely away from the seat, no jamming or squeegeeing. This design elimi nates wear points around the disc at the top and bottom of the seat. When closed, the disc cams tightly into its seat to create a double-tight seal.
Unique polymeric soft sealing provides trouble-free operation (Energized Seat Design)
Material Specification | |||
NO. | DESCRIPTION | CARBON STEEL | STAINLESS STEEL |
1 | BODY | A216 WCB | A351 CF8/CF8M |
2 | DISC | SS304/SS316 | SS304/SS316 |
3 | STEM | 17-4PH | 17-4PH |
4 | GLAND FLANGE | A216 WCB | A351 CF8/CF8M |
5 | PACKING RETAINER | A276 TP304/316 | A276 TP304/316 |
6 | RETAINER RING | SS304/SS316 | SS304/SS316 |
7 | SEAT | PTFE/RPTFE/NBR/EPDM | PTFE/RPTFE/NBR/EPDM |
8 | TOP RETAINER | CARBON STEEL | STAINLESS STEEL |
9 | PACKING | GRAPHITE | GRAPHITE |
10 | BEARING | SS316+GRAPHITE | SS316+GRAPHITE |
11 | BEARING | SS316+GRAPHITE | SS316+GRAPHITE |
12 | DISC PIN | A276 TP304/316 | A276 TP304/316 |
13 | BOLT | A193 B7 | A193 B8M |
14 | SPRING WASHER | STAINLESS STEEL | STAINLESS STEEL |
15 | HEX. NUT | A194 2H | A194 8M |
16 | STUD BOLT | A193 B7 | A193 B8M |
17 | FLAT HEAD SCREW | A193 B7 | A193 B8M |