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ATEX Directive, Chemical Liquid Valve, Air Operated Type, Threaded Type, 55-LVA Series
[What is ATEX Directive?]
Since July 1, 2003, it has been mandatory within the EU to comply with the ATEX Directive for equipment used in potentially explosive atmospheres.
■CE mark and ATEX
The ATEX Directive is now part of the CE mark, which incorporates the traditional European explosion-proof standard.
■Purpose of ATEX Directive
The main purposes of ATEX are:
・ Prevention of electrostatic charge
・ Ignition prevention of sparks caused by friction, impact, and abrasion
・ Ignition prevention due to temperature rise due to the same as above
・ The responsibility lies with the manufacturer
・ Certification by zone/category
■Zone/Category
In ATEX, the objects to be applied are classified into categories for each dangerous place (zone).
・ Zone 0: Category 1
Possibility of explosive atmosphere (Zone): Continuous or long time > 1,000 hours/year
・ Zone 1: Category 2
Possibility of explosive atmosphere (Zone): Occasionally 10 to 1,000 hours/year
・ Zone 2: Category 3
Possibility of explosive atmosphere (Zone): Less likely, short time < 10 hours/year
(i)Caution
- Refer to the manufacturer's catalog for specification and material details.
- The product images are representative only. Please refer to the manufacturer's catalog for shape details.
Japanese Only
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Plumbing Thread Nominal | Switching Type | Connection Type | Orifice Dia. (Ø) | Option | Body material | Diaphragm | End plate material | Actuator material |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
- | 1 Piece(s) | Quote | 1/8 | Normally Closed | [Rc (R)] Rc | - | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/8 | Normally Closed | [Rc (R)] Rc | - | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | None | PPS | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | With indicator | PPS | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | None | PFA | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | With flow rate adjustment | PFA | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | With indicator | PFA | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | None | SUS | EPR | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | NPT | - | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Open | [Rc (R)] Rc | - | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Open | NPT | - | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | 8 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | NPT | 8 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | [Rc (R)] Rc | 8 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | [Rc (R)] Rc | 8 | None | PPS | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | [Rc (R)] Rc | 8 | With flow rate adjustment | PFA | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | NPT | 8 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Open | [Rc (R)] Rc | 8 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | [Rc (R)] Rc | 12 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | [Rc (R)] Rc | 12 | None | SUS | NBR | None | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Closed | NPT | 12 | None | SUS | NBR | None | PPS | ||
- | 1 Piece(s) | Quote | 1/2 | Normally Closed | [Rc (R)] Rc | 12 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/2 | Normally Closed | [Rc (R)] Rc | 12 | None | PFA | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/2 | Normally Closed | [Rc (R)] Rc | 12 | With flow rate adjustment | PFA | PTFE | PPS | PPS | ||
- | 1 Piece(s) | Quote | 1/2 | Normally Closed | [Rc (R)] Rc | 12 | None | PFA | PTFE | PVDF | PVDF | ||
- | 1 Piece(s) | Quote | 1/2 | Normally Closed | NPT | 12 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 3/8 | Normally Open | NPT | 12 | None | SUS | NBR | None | PPS | ||
- | 1 Piece(s) | Quote | 1/2 | Normally Open | NPT | 12 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1 | Normally Closed | [Rc (R)] Rc | 22 | None | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1 | Normally Closed | [Rc (R)] Rc | 22 | With flow rate adjustment | SUS | PTFE | None | PPS | ||
- | 1 Piece(s) | Quote | 1/4 | Normally Closed | [Rc (R)] Rc | - | None | PFA | PTFE | None | PPS |
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Basic Information
| Applicable Fluid | Chemical | Type | Air Operating Type | Operating Environment | High Corrosion Resistance |
|---|---|---|---|---|---|
| Operating Temperature Range(°C) | 0::60 |
Specification/Dimensions
-
Plumbing Thread Nominal
-
Switching Type
- Normally Closed
- Normally Open
-
Connection Type
- Rc (R)
- NPT
- Rc (R)
-
Orifice Dia.(Ø)
-
Option
- None
- With flow rate adjustment
- With indicator
-
Body material
- PFA
- PPS
- SUS
-
Diaphragm
- EPR
- NBR
- PTFE
-
End plate material
- None
- PPS
- PVDF
-
Actuator material
- PPS
- PVDF
-
type
- 55-LVA1□
- 55-LVA2□
- 55-LVA3□
- 55-LVA4□
- 55-LVA6□
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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