Control Globe Control Valve
High-Rangeability Throttling Globe Valve with Linear or Equal-Percentage Trim Characteristics for Precise Process Control
0.5" – 8"
Size Range
Pneumatic / Electric (Linear)
Actuation
Precise Modulating
Control Function
PFA / FEP / PVDF
Lining
Precision Throttling Globe Valves for Corrosive Process Control
UNP’s Control Globe Valve is the precision-throttling workhorse of process control. Linear, equal-percentage, or quick-open trim characteristics are selected at the order stage to match your control loop’s rangeability and gain requirements. A pneumatic or electric linear actuator with smart positioner delivers fine modulating control of corrosive media.
The PFA-lined investment-cast body provides full corrosion resistance, and the rising-stem design with position indicator makes valve status visible at a glance. Pressure balanced trim is available for high-pressure differential service to reduce required actuator thrust.
Standard configuration is single-seat unbalanced trim for tight shutoff (API 598 Class IV/V/VI). Cage-guided trim is available for anti-cavitation, anti-noise, or anti-flashing service.
Why Choose This Control Valve
- ✓Linear / Equal-% / Quick-Open trim options
- ✓Rising stem with position indicator
- ✓Class IV / V / VI shut-off
- ✓Anti-cavitation / anti-noise cage trim available
- ✓Pressure-balanced trim for high differential
Choose Your Actuator Type
Each valve ships fully assembled with the actuator type and accessories that fit your control strategy.
Pneumatic
Spring-return fail-safe and double-acting cylinders. Fastest response, preferred for safety-critical service.
Electric
Motorized actuators with 4–20 mA modulating or on/off control. For sites without instrument air.
With Smart Positioner
Pneumatic actuator + digital positioner (HART/Profibus) for precise modulating throttle control.
Specifications, Materials, Testing
Valve Body Specifications
| Valve Design Standard | BS EN 13709 / ANSI B 16.34 |
| Shell Design | ANSI B 16.34 |
| Size Range | 0.5" – 8" |
| Connection | Flanged, RF (Wafer for Butterfly) |
| Testing Standard | API 598 / BS EN 12266-1 |
| Operating Temperature | -40°F to 450°F (PFA) — depends on lining material |
Actuator Specifications
| Parameter | Specification |
|---|---|
| Mounting Standard | ISO 5211 (rotary) / ISO 5210 (linear) |
| Air Supply (Pneumatic) | 4 – 8 bar clean dry instrument air |
| Power Supply (Electric) | 24V DC, 110/220V AC, 380/415V 3-Phase |
| Control Signal | 4–20 mA / 0–10V / On-Off / HART (optional) |
| Fail-Safe Action | Spring Return — Fail Open / Fail Close / Stay Put |
| Enclosure Rating | IP67 standard / IP68 / ATEX Zone 1 (Ex d) on request |
Available Accessories
| Accessory | Function |
|---|---|
| Positioner | Smart digital positioner with HART / FF / Profibus protocols |
| Solenoid Valve | 3/2 or 5/2 pilot — NAMUR mounting standard |
| Limit Switch Box | Mechanical or proximity switches with visual indicator |
| Filter Regulator | Air filtration + pressure regulation for pneumatic supply |
| Volume Booster | For high-flow-rate stroking of large actuators |
Valve Body Materials
| Component | Options Available |
|---|---|
| Body Casting | ASTM A 216 GR. WCB / A 351 GR. CF 8 / CF 8M / A 890 GR. 4A (CD3MN) / Super Duplex |
| Lining Materials | PFA / FEP / ETFE / PVDF / PPH / ECTFE / Antistatic PFA |
| Flange Rating | ANSI B 16.5 150# / 300# / DIN PN 10 / 16 / 25 / JIS |
Testing & Certification
| Test | Standard / Specification |
|---|---|
| Hydrostatic Shell Test | API 598 / BS EN 12266-1 (100% sampled) |
| Seat Leakage Test | API 598 Class VI / Bubble-Tight |
| Spark Test (Lined Components) | 20 KVDC |
| Actuator Function Test | Full stroke + signal response verification |
| Certifications | ISO 9001:2015 / CE / PED 1128 / SIL-3 (on request) |
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Order Your Control Globe Control Valve
Tell us your line size, lining preference, actuation type, and accessories — we’ll spec the exact control valve package in 24 hours.