United States
Angle seat valves
Series ASX
2/2-way - Normally Closed (NC) and Normally Open (NO)
2/2-way - Double Acting (DA)
2/2-way - Double Acting (DA)
Angle seat valves are available in different versions with regard to nominal diameter, type of fluid and process connections.
They are able to manage media that are corrosive or contain suspended solid particulate matter and can be used in applications with high operating temperatures.
The operation is determined by the pneumatic drive of a single acting, guided piston actuator with spring return.
There are also models available with double acting actuators, without spring.
For liquid media we recommend the models with flow direction under the seat.
For gas or steam we recommend the models with flow direction above the seat.
They are able to manage media that are corrosive or contain suspended solid particulate matter and can be used in applications with high operating temperatures.
The operation is determined by the pneumatic drive of a single acting, guided piston actuator with spring return.
There are also models available with double acting actuators, without spring.
For liquid media we recommend the models with flow direction under the seat.
For gas or steam we recommend the models with flow direction above the seat.
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| TECHNICAL FEATURES | |
| Function | 2/2 NC - 2/2 NO - 2/2 Double Acting |
| Operation | pneumatic, poppet type |
| Pneumatic connections | 1/4 … 4“ with BSP/BSPT/NPT threads, flanged, welding ends, tri-clamp |
| Nominal diameter | DN8 … DN100 |
| Flow coefficient Kv (m³/h) | 2.2 … 132 |
| Operating pressure | 0 ÷ 2 … 16 bar |
| Operating temperature | -10 ÷ 180 °C (standard seals) / 25 ÷ 220 °C (high temperature seals) |
| Fluid | water, air, steam, inert or corrosive liquids and gases (compatible with the materials in contact) |
| Viscosity | 600 cSt. Max |
| Installation | in any position |
| MATERIALS IN CONTACT WITH THE MEDIUM | |
| Body | 316 stainless steel (DN8 ÷ DN80) / 304 stainless steel (DN100) |
| Seals | PTFE |
| Internal parts | 316 stainless steel |
SPECIFICATIONS PNEUMATIC ACTUATOR |
|
| Actuator dimensions | Ø40 - Ø50 - Ø63 - Ø90 - Ø125 mm |
| Actuator material | 304 stainless steel / aluminium (only for Ø125 mm) |
| Piston material | aluminium |
| Piston seal material | FKM |
| Piloting fluid | air or inert gases |
| Piloting pressure | 10 bar max. |
| Actuator position | 360° rotatable |
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CODING EXAMPLE
| AS | X | 2 | 1 | W | 015 | G1 | 040 | 1 | 2 |
| AS | SERIES |
| X |
TYPE OF ACTUATOR X = metal actuator |
| 2 |
BODY MATERIAL 1 = 304 stainless steel (DN 100) 2 = 316 stainless steel (DN8 ÷ DN80) |
| 1 |
NUMBER OF WAYS - FUNCTIONS 0 = 2/2-way NO 1 = 2/2-way NC 3 = 2/2-way DA (Double Acting) |
| W |
FLOW DIRECTION W = under the seat (anti-water hammer) Y = above the seat |
| 015 |
NOMINAL DIAMETER 008 = DN 8 010 = DN 10 015 = DN 15 020 = DN 20 025 = DN 25 032 = DN 32 040 = DN 40 050 = DN 50 065 = DN 65 080 = DN 80 100 = DN 100 - only for flanged version with NC and DA function and pressure under the seat |
| G1 |
BODY CONNECTION G1 = BSP thread DIN 228-1 T1 = BSPT thread DIN 2999-1 N1 = NPT thread ASME B1.20.1 H7 = welding ends DIN 11850-2 / DIN 11866-A H8 = welding ends DIN 11850-3 K7 = tri-clamp ISO 2852 F2 = flange DIN 2543 |
| 040 |
ACTUATOR DIMENSION 040 = Ø40 mm 050 = Ø50 mm 063 = Ø63 mm 090 = Ø90 mm 125 = Ø125 mm |
| 1 |
ACTUATOR MATERIAL 1 = 304 stainless steel 8 = aluminium |
| 2 |
SEALS 2 = for standard temperatures -10 ÷ 180 °C 3 = for high temperatures 25 ÷ 220 °C |
|
OPTIONS = none PS1 = NPN type proximity switch - NO contact - 10 ÷ 30 V DC power supply PS2 = PNP type proximity switch - NC contact - 10 ÷ 30 V DC power supply PS3 = PNP type proximity switch - NO contact - 10 ÷ 30 V DC power supply PS4 = NPN type proximity switch - NC contact - 10 ÷ 30 V DC power supply PS5 = SCR type proximity switch - NO contact - 20 ÷ 250 V AC power supply PS6 = SCR type proximity switch - NC contact - 20 ÷ 250 V AC power supply SL1 = stroke limiter for Ø50 - Ø63 mm actuators SL2 = stroke limiter for Ø90 mm actuators PI1 = position indicator for Ø40 - Ø50 - Ø63 - Ø90 mm actuators PI2 = position indicator for Ø125 mm actuators |
