Air Operated Diaphragm Valve, Sanitary Tank Bottom Type
Reference: SV-4PTB
Sizes available: 3/4" to 4"
End connection: tri-clamp, or butt-weld
Body material: ASTM A351 CF3M (1.4435) as default, AISI 316L Forged Body (1.4435), ASME BPE 316L, or 1.4435-BN2 (316L) Fe＜0.5% Forged Body
Body structure: tank bottom
Seat: EPDM+PTFE
Max. working pressure (default): Normally closed, EPDM=87psi (6bar), PTFE=65psi (4.5bar) / Normally open and double action, EPDM=116psi (8bar), PTFE=87psi (6bar)
Max. working pressure (option): Normally closed EPDM=116psi (8bar), PTFE=87psi
Temperature range: -22°F to 266°F/ (-30 to 130℃), or higher upon request
Operation: plastic or stainless pneumatic actuator, NC/NO/AA type for choose from
Actuator air pressure: 58-102psi (4-7bar)
Surface treatment: Ra 16 ~ 32µin (0.4 ~ 0.8µm), Ra 25µin as default.
INQUIRY
Sizes available: 3/4" to 4"
End connection: tri-clamp, or butt-weld
Body material: ASTM A351 CF3M (1.4435) as default, AISI 316L Forged Body (1.4435), ASME BPE 316L, or 1.4435-BN2 (316L) Fe＜0.5% Forged Body
Body structure: tank bottom
Seat: EPDM+PTFE
Max. working pressure (default): Normally closed, EPDM=87psi (6bar), PTFE=65psi (4.5bar) / Normally open and double action, EPDM=116psi (8bar), PTFE=87psi (6bar)
Max. working pressure (option): Normally closed EPDM=116psi (8bar), PTFE=87psi
Temperature range: -22°F to 266°F/ (-30 to 130℃), or higher upon request
Operation: plastic or stainless pneumatic actuator, NC/NO/AA type for choose from
Actuator air pressure: 58-102psi (4-7bar)
Surface treatment: Ra 16 ~ 32µin (0.4 ~ 0.8µm), Ra 25µin as default.
APPLICATION
SV-4PTB series is a sanitary air operated diaphragm valve, tank bottom design. The valve is is designed for use at the bottom of a tank or vessel to drain or sample while minimizing the interior sump and preventing any dead leg for bacteria or microorganism entrapment.
TECHNICAL DATA
| Body Material | ASTM A351 CF3M (1.4435) as default, AISI 316L Forged Body (1.4435), ASME BPE 316L, or 1.4435-BN2 (316L) Fe＜0.5% Forged Body |
| Seat Material (diaphragm) | EPDM+PTFE |
| Seat Material (diaphragm) OPTION | Single EPDM, EPDM+PTFE (2-piece), Viton (FPM) |
| End Connections | butt-welded, sanitary tri-clamp |
| Max. Working Pressure | Normally closed EPDM 87psi (6bar), PTFE 65psi (4.5bar) as default |
| Normally closed EPDM 116psi (8bar), PTFE 87psi (6bar) as option | |
| Normally open and double action EPDM 116psi (8bar), PTFE 87psi (6bar) | |
| Working Temperature | -22°F to 302°F/-30 to 150℃ (Depending on Seal Material) (Stainless Actuator) -22°F to 266°F/-30 to 130℃ (Depending on Seal Material) (Plastic D27Actuator) |
| Internal Finish | Ra 16 ~ 32µin (0.4 ~ 0.8µm), Ra 25µin as default. |
| External Finish | Ra 16 ~ 32µin (0.4 ~ 0.8µm), Ra 32µin as default. |
| Pneumatic Actuator Types | plastic actuator or stainless actuator |
| Actuator Operation Types | Normally Closed (NC) – Air to open and spring to close; Normally Open (NO) – Air to close and spring to open; Air to Air (AA) – Air to open, air to close. |
| Actuator air pressure | 58 ~ 102psi (4 ~ 7bar) |
| Units for intelligent control and indication | Proximity Switches (position sensor) Limit Stroker C-top control IL-top control (Positioner) |
DESIGN FEATURES
Design Features
● Unique seal design, no dead angles
● EHEDG certified sealing concept
● Stainless steel bonnet with sanitary internals
● Sanitary surface finish, available with Ra < 0.4µm or EP (SF1 and SF4)
● Manual handle, pneumatic actuator are interchangeable
● A wide selection of body types for choose from, U type/T type/Multiport
● 100% hydraulic tested / 100% inspected
● Standards: ASME BPE, 3A, DIN, ISO / IDF
● Certificates: 3A, FDA, PED 97/23/EC
Operations
● Handles
Plastic handwheel
Stainless handwheel
● Actuators
Pneumatic plastic actuator
Pneumatic stainless steel actuator
Electric actuator
● Units for intelligent control and indication:
Proximity Switches (position sensor)
Limit Stroker
C-top control
IL-top control (Positioner)
