Mark 128PQC Series
Control Valve Suitable for On-Off Dump Valve Service
The Mark 128PQC Series Control Valve body assembly is suitable for on-off dump valve service in oil and gas production applications, in either sweet or sour gas conditions. This valve is also useful for on-off high-pressure control of numerous gasses and liquids, and can be used with materials that are viscous or erosive.
Features & Benefits
- 1″ screwed end connections
- Quick opening flow characteristic
- Can be converted from straight through flow to angle flow
- Field reversible multi-spring actuator
- Stem guided valve plug
- Sour service capability: optional NACE MRO 175/ISO 15156-2009
- Tight shutoff
Specifications
- Sizes: 1″
- End Connections: NPT
- Body Materials: WCB
- Trim Materials: 316
- Seats: Metal, Soft-seat, Cageless-soft seat
- Shutoff: Class IV
- Maximum Inlet Pressures and Temperatures: 3600 psi @ 100°F; 3520 psi @ 180°F
- Flow Characteristics: Quick opening with a 45° taper plug
- Flow Direction: Either direction