LP Series locked-bonnet rising plug and gauge valves are designed for the many severe servic applications in the oil & gas, chemical/petrochemical, and power industries where high vibration, temperature and pressure changes are common.

LP Series Rising Plug valves use a unique set of features that can improve reliability and reduce the operating costs for process instrumentation applications with working pressures up to 6000 psig (413 bar) and temperatures from -65 to 600° F (-53 to 315° C).

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• Select Rising Plug and Gauge Valves for your applications.
• Download the LP Series Rising Plug and Gauge Valves Catalog.

Features include:

1. Live loaded chevron packing compensates for packing wear and changes in temperature and pressure; this design maintains a leak-tight stem seal and reduces or even eliminates the need for packing adjustments.
2. Easily accessible packing adjustment and back seating stem tips make inline packing adjustments faster and safer.
3. 17-4 hardened stem threads above the packing provide durability and ensures that the valve operates smoothly even in sever applications.
4. Dust cap prevent infiltration from the environment.
5. Bonnet locks prevent the accidental disassembly of the bonnet during maintenance, operation or from system vibration.
6. Non-rotating lower stems reduce packing, seat, and stem damage that can result from the stem tip rotating onto the valve seat.
7. Stem pivot above the packing ensure that the stem will not be infiltrated and clogged by system media.
8. Straight through flow path ideal for systems having “dirty” and viscous system media where rodding may be required.
9. Choice of Acetal, PFA or Peek seats.
10. Stainless steel handle locates precisely in the stem to stay tight.

Specifications

• Temperature: -65 to 600° F (-53 to 315° C)
• Pressure: up to 6000 psig (413 bar)
• Valve Orifice Sizes: 0.187 and 0.250
• Flow coefficient (Cv):  up to 1.65 

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• Body and bonnet materials: 316 stainless steel and alloy 400
• Seat materials: Acetal, PFA and PEEK
• Packing Material: PTFE and PEEK (with PEEK seat only)
• End Connections
  • Inlet: 1/4 and1/2 in. FNPT and 1/4, 1/2 and 3/4 in. MNPT
    • Socket weld and butt weld ends are availabe
    • Extended inlets available up to 6 in.
  • Outlet/Ports: 1/4 and 1/2 in. FNPT
• Sizes:  1/4, 1/2  in to 3/4 in. inlets and 1/4 and 1/4 in. outlets.
• Extended Inlets (Lagging):  2, 4 and 6 in.
• Panel Mounting
• Specially Cleaning: Compliance with ASTM G93 Level C and CGA G-4.1, Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments. To specify, add -XP98 to the part number. 
• Sour Gas: SSP offers four confi gurations to meet the requirements in ANSI/NACE MR0175/ISO 15156- 3 and NACE MR0103/ISO 19745.