Features & Benefits
- Design Standard – API 609, BS 5155, DIN 3202, IS 13095.
- Body: Single Piece
- End Connection: Flanged, Wafer, Lug.
- DN : 2” – 48”
- PN : 1.0MPa , 1.6MPa, ANSI 125, ANSI 150.
- Disc: Concentric, Single offset, Double offset, Triple offset.
- Leak proof – Positive shut-off.
- Phenolic Backed Seat.
- One piece thru’ Shaft.
- Operation: Manual, Mechanical actuator, Electric actuator, Pneumatic actuator.
- Extended Stem.
- End to end dimensions as per API609, BS5155, DIN3202, and IS13095.
- Actuator Mounting – ISO 5211
- Material: NACE MR-0175
- Test in accordance with API-598.
| DESIGN STANDARDS / CRITERIA | BODY TYPE / END CONNECTIONS |
| 1. ASME B16.34 | 1. Flanged |
| 2. ASME Section III | 2. Lugged |
| 3. GL 89-10 (NRC Generic Letter) Actuator Sizing | 3. Wafer |
| 4. GL 96-05 Periodic Verification Testing | 4. Butt Weld end (end to end dimensions for BW valves can vary based on customer requirements) |
| 5. ASME QME-1 Mechanical | 5. Special End to End requirements |
Available Patterns
Triple Offset Sealing System
Offset # 1: The shaft is offset from the seat plane providing an uninterrupted seating surface.
Offset # 2: Centerline of disc is offset from the centerline of the shaft allowing the seal to freely lift off any away from the seat on opening.
Offset # 3: The cone axis is offset from the centerline of the seal to provide a conical sealing surface that allows the seal to rotate in and out of the seat without interface sliding or jamming.
Additional Options
- Oxygen clean wrap
- Steam traced shaft
- Weld-on steam jacket
- Bolt-on steam jacket
- NACE MR 0175 & 103 compliant
6. Heat extension bonnet
7. Cryogenic extension bonnet
8. Remote position indication
9. Stem instrumentation
10. Baseline diagnostic testing
11. Live loaded packing
12. Purge port and lantern ring
13. Stellite seat overlay
