Valpres 700355 C1-C2-C3 Analog V-Ball Control Ball Valve
The Valpres 700355 C1-C2-C3 is a two-piece, V-ball control ball valve designed for modulating flow applications. Constructed from stainless steel A351-CF8M, it features a V-port ball for precise pressure and flow regulation. Unlike standard on/off ball valves, this model is intended for applications requiring controlled, proportional flow adjustment rather than simple open/close operation.
Technical Data
- Connection: Female/female threaded ISO 7 Rp / EN 10226-1
- Body and end material: ASTM A351 CF8M
- Ball: A479 TP316 / A351 CF8M
- Seats: RPTFE
- Body gasket: PTFE
- Thrust ring: TFM-MPTFE
- O-ring: FKM
- Shaft: A479 TP316 / 17-4 PH
- Operating temperature: -20°C to +160°C
- Sizes: DN15 to DN80
- Pressure rating: PN64 up to DN50, PN25 for DN65–DN80
- Mounting pad: ISO 5211 direct mount
- Certifications: ATEX, SIL 3
V-Ball and Flow Control
The V-notch ball enables predictable flow modulation at partial openings compared to standard full-port balls. Available V-port options include V90, V60, and V30-60, selected based on required flow characteristic and available differential pressure. Refer to technical datasheets for Kv/Cv values and flow curves.
Applications
Suitable for process water, utility lines, and chemical services compatible with CF8M/RPTFE/FKM. Used in industrial systems requiring analog flow control with pneumatic or electric actuators. For continuous regulation, verify Kv/Cv, differential pressure, cavitation risk, flow velocity, and seat wear.
FAQ
When is this valve selected over a standard ball valve?
When the process requires controlled, proportional flow rather than simple open/close service.
What is required for actuator selection?
Specify DN, pressure, temperature, torque, V-port type, control signal, and fail-open/fail-close requirement.
Description
Certifications
ATEX
SIL 3

