Pneumatic HP Butterfly Valve (SUS304, Single Acting, 10K)
Model: PAVP-15(S)
PAVP-15(S) is a pneumatic single-acting high-performance butterfly valve featuring a double-offset construction with a SUS304 body and disc and an RTFE seat. The short face-to-face design is advantageous for installation in confined sections, and the wide lineup - from compact 20A and 25A sizes up to large bores - is used for automatic shutoff and fail-safe lines in the chemical, plant, water/wastewater, and construction sectors.
Features
- Easy installation in confined spaces
- Simple structural design with low defect rate
- Quick open/close for effective flow control
- High tightness and durability
- Double-eccentric structure with low torque
- ISO5211 Direct Mounting Pad applied
- For powder fluids or operating temperatures over 120°C
- Seat: RTFE (usable up to 220°C); METAL for higher temperatures
Frequently Asked Questions
- How does double-offset structure differ from standard CONCENTRIC structure?
- CONCENTRIC structure has the stem axis aligned with the pipe centerline, offering advantages in price and structural simplicity as a general-use standard form. Double-offset structure has the stem axis offset in two directions, so during opening/closing the disc and seat contact only at the moment of opening/closing and rotate in non-contact state during the middle section. This reduces seat friction and wear, extends seat life, and lowers operating torque, making it the preferred form for lines requiring high-cycle repetitive opening/closing or tight sealing.
- What is the operating temperature of RTFE seats and the criteria for switching to metal seats?
- RTFE seats can be used up to approximately 220°C. For higher-temperature lines, sections in direct steam contact, or environments where soft seats cannot ensure long-term durability such as highly abrasive slurry or solid-laden fluids, the specification can be changed to metal seats. Metal seats may have slightly increased leakage compared to soft seats but provide superior long-term reliability in high-temperature and high-abrasion environments. Let us know your operating conditions and we will guide you to the appropriate seat material.
- Can it be applied to small-diameter lines?
- High-performance butterfly valves are generally supplied for medium and large-diameter lines, but PAVP-15(S) has a lineup down to small sizes such as 20A (3/4 inch) and 25A (1 inch). For small-diameter branch lines requiring short face-to-face length, fast operation, and low operating torque, it can be used as an alternative to gate or ball valves; let us know the application size and we will provide stock and lead time information.
- What accessories can be attached to a pneumatic valve?
- We supply integrated packages combining various accessories to meet field requirements. Typical accessories include limit switch boxes for DCS/PLC feedback of open/close status, solenoid valves for remote sequence control, and air filter regulators for particulate/moisture removal and pressure stabilization. Let us know your field configuration and we will prepare the appropriate combination.