Design Standards
- Body joint integrity and fire safety is ensured by dual independent seals
- A tight tolerance overlapping metal to metal body joint ensures valve is capable of handling pipeline stress and misalignment.
- Standard forged body, bonnet and ball ensures high strength and higher integrity grain structure
- All trunnion ball valves are equipped with a locking device to API 608. For gear operated valves, this feature is included on the gear operator
- All trunnion ball valves are equipped with ISO 5211 actuator mounting flanges
- Standard trim in either full stainless steel (DBB only) or 3 mil high phosphorus electroless nickel plated for superior corrosion protection
- Blow out proof stem
- Stems and trunnions are manufactured separately from the ball and supported by a bearing and thrust washer to ensure low consistent torques
- All valves include emergency secondary stem sealant injection system
- Special wide seat insert design provides an increased life in difficult service conditions
- Seat ring sealing includes separate graphite seals for fire safe design and O-rings for tight sealing
Tagging is per the requirements of API 6D, MSS SP-25 and CSA Z245.15
Reference Standards
Design Standard:
API 608
API 6D
ISO 17292
CSA Z245.15
CSA B51
Face to Face:
ASME B16.10
Flange:
ASME B16.5
Marking:
MSS SP-25
Inspection:
API 598
Pressure & Temp.:
ASME B16.34
Quality:
MSS SP-55
Fire Safe Design:
ISO 10497
API 607
API 6FA
Sour:
NACE MR0175
ISO 15156
Pressure Testing:
API 6D
ISO 5208
Documentation: BS/EN 10204-3.1
