Dump Valves
Mechanical Dump Valve
LEVEL CONTROL / AUTOMATIC LIQUID DISCHARGE
Mechanically operated dump valve designed for reliable liquid level control and discharge in production systems. Features a balanced diaphragm design that allows operation independent of fluid pressure for consistent performance. Built with durable internal components and designed for service access in line.
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Highlights
- Balanced diaphragm design isolates valve operation from fluid pressure
- Full trim access without removing valve from the line; bonnet removal exposes entire cage and stem assembly
- Acetal bushings reduce friction and wear compared to metal-to-metal contact points
- O-ring seals replace packing for longer service life and reduced adjustment frequency
- 250 PSIG operating pressure, 300 PSIG max; ANSI Class VI shutoff per ANSI/FCI 70-2-2013
- Ductile iron body; nitrile or fluorocarbon diaphragm; nitrile, polyurethane, or fluorocarbon seat options
Application
- Separators and knockouts requiring float-operated mechanical liquid level control
- Treaters and other accumulators paired with a P8000 trunnion assembly
- Applications where dump valve operation must be independent of fluid pressure
Treater Valve
OIL & WATER SERVICE / CORROSIVE ENVIRONMENTS
Oil and water dump valve designed for reliable operation in corrosive production environments. Features a balanced diaphragm design that allows trim changes without removing the valve from the line. Built with configurable materials and internal components to accommodate a wide range of process fluid conditions.
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Highlights
- Simple trim access without removing valve from the line
- “D-key” trunnion hub and shaft feature for simplified disassembly and reassembly
- Nitrile or fluorocarbon elastomer options; cast iron or acetal cage and ratio plug
- 125 PSIG max inlet and signal pressure; ANSI Class VI shutoff per ANSI/FCI 70-2-2013
- Ductile iron body and housing; tealon gaskets; cast steel stem
- Temperature range -20°F to 200°F (-29°C to 93°C)
Application
- Heater treaters requiring oil or water dump control
- Water knockouts and gun barrels
- Salt water disposal systems
- Emulsion treaters in oil and gas production
DIAPHRAGM OPERATED CONTROL VALVE
LOW PRESSURE CONTROL / STABLE VALVE POSITIONING
Diaphragm-operated control valve designed for low-pressure applications using pneumatic signal control. Features a balanced diaphragm design that maintains consistent valve position independent of process fluid pressure. Built with configurable materials and internal components for reliable performance.
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Highlights
- Balanced diaphragm design cancels supply and output pressure forces for signal-only operation
- 10 PSIG minimum pneumatic signal; 125 PSIG operating pressure, 400 PSIG max working pressure
- External travel indicator provides visible confirmation of valve position
- ANSI Class VI shutoff per ANSI/FCI 70-2-2013; 2″ NPT female connections
- Nitrile or fluorocarbon diaphragm and O-ring options; nitrile, polyurethane, or fluorocarbon seat
- Ductile iron or acetal cage; stainless steel stem and stem guide
Application
- Separators requiring pneumatically operated liquid level dump control
- Meters and water knockouts
- Low pressure oil and water dump service where 10 PSIG minimum signal is available
Non-Freeze Dump Valve
FREEZE PROTECTION / VESSEL INSTALLATION
Liquid dump valve designed for vessel applications where freezing can occur. Installs through the vessel wall, allowing the trim to remain suspended in process fluid to utilize system heat and prevent freeze-up. Rated up to 4000 PSIG with configurable trim options for reliable performance in demanding environments.
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Highlights
- 1″ FNPT inlet and outlet connections; 2″ MNPT vessel mount
- 4000 PSIG max working pressure; fail-close, pressure-open design only
- Trim fully suspended inside the vessel to leverage process heat and prevent freezing
- Trim sizes 1/4″, 3/8″, and 1/2″ in linear and quick opening characteristics
- 17-4PH stainless steel, tool steel, or tungsten carbide trim options
- Standard and NACE MR0175-compliant construction; Buna-N or Viton seals
Application
- Liquid level dump service on high-pressure vessels in cold environments
- Gas processing units with high pressure drops susceptible to freeze-up
Non-Freeze Dump Valve
FREEZE PROTECTION / VESSEL SERVICE
Pneumatically controlled dump valve designed for liquid level control in production vessels where freeze prevention is critical. Suspends internal trim within the process fluid to maintain temperature and prevent freezing during operation. Rated up to 2000 PSIG with serviceable internal components that can be accessed without removing the valve body.
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Highlights
- Plug and seat suspended in process media to prevent freezing; non-freeze design
- Topworks and trim removable for service without removing body from vessel
- Weep hole in union nut provides pressure warning during disassembly
- Valve position indicator visible from exterior; 30-70 PSIG signal pressure
- Available in 500, 1500, 1800, and 2000 PSIG inlet pressure models
- 1″ MNPT (1800 PSI) or 2″ MNPT (500/1500/2000 PSI) vessel mount; urethane or PTFE trim options
Application
- Separators, scrubbers, and process vessels up to 2000 PSIG supply
- High-pressure liquid level dump control in cold-weather environments
- Compressor scrubber liquid dump service paired with a P8600 pneumatic level switch