708BS
Company Name : Low Flow
Specification
Sizes:
- 1/4″, 1/2″, 3/4″ (DN8, DN15, DN20)
End Connections
- Threaded – NPT, BSPT, BSPP
- Socket weld – 1/2″ & 3/4″ only (DN15 & DN20)
- Integral tube ends (max Cv of 0.2)
- Flanged
Actuator (Positioner required with all actuators)
- 1/4″ & 1/2″ (DNS & 15) – standard : 14M (14in2) multi-spring ; optional: 35M (35in2) multi-spring
- 3/4″ (DN20) – standard: 14M; optional 35M
Body/Bonnet Materials
- Carbon Steel
- Stainless Steel
- Hastelloy C
- Hastelloy B
- Alloy 20
- Monel
- Titanium
Trim Material
- Standard trim – Cv’s 0.05 (0,04 Kv’s) & above: 17-4 plug, 316SS stem and seat ; Cv’s below 0.05 (0,04 Kv’s): Nitronic 60 stem, plug and stem
- Optional trim -17-4 plug, 416SS seat; Stellite plug and seat; 316SS stem, plug and seat
Bellows Material
- Standard – 316L, Triple-ply
- Optional – Hastelloy C
Actuator Material: Aluminum
Diaphragm Material
- 14M Actuator : Nylon/Nitrile
- Optional 35M Actuator: Buna-N fabric reinforced
Stem Packing Material
- Standard – spring-loaded TFE/Chevron
- Optional – braided or Graphite/Grafoil with positioner
Gasket Material: matched to packing material
Service: Steam, air, gas, chemicals , oil, water
Shutoff
- Standard – Cv’s 0.05 and greater: ANSI Class IV; Cv’s 0.02 and lower: ANSI Class VI
- Optional – Cv’s 0.05 and greater: ANSI Class VI (with PEEK seats)
Ranges: 3-15 (0,2-1,0); 6-30 (0,4-2,1); 3-9 (0,2-0,6) psi (bar)
positioner required on al/ ranges
Mark 15 TMP standard. Consult factory far smp configuration
Valve Action
- Direct (ATC)
- Reverse (ATO)
Flow Characteristics: linear (all Cv’s) , equal percentage (Cv > 0.05/0,43 Kv only): or quick opening (Cv > 0.05/0,43 Kv only)