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WIKA 990.24 VARIVENT連接衛(wèi)生型隔膜壓力表 3A及FDA認(rèn)證

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產(chǎn)品型號990.24

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WIKA 990.24 VARIVENT連接衛(wèi)生型隔膜壓力表 3A及FDA認(rèn)證

詳細(xì)介紹

類型：	隔膜壓力表	型號：	990.24
聯(lián)接型式：	VARIVENT連接	精度等級：	1.0
品牌：	WIKA/威卡	環(huán)境溫度：	-20-100（℃）
加工定制：	是	公稱直徑：	63 100（mm）
測量范圍：	0-100（MPa）

WIKA 990.24 VARIVENT連接衛(wèi)生型隔膜壓力表

3A及FDA認(rèn)證

  Diaphragm seal with sterile connection
          For sanitary applications
    Model 990.24, VARIVENT® connection

Diaphragm seal with sterile connection, model 990.24

       Applications
       ■ For installation into VARINLINE® access units
       ■ Food and beverage production
       ■ For dairies, dairy products
       ■ Breweries
       ■ Soft drink production

      Special features
       ■ Quick cleaning of measuring point, without residue
       ■ Suitable for SIP and CIP
       ■ 3-A certified and FDA compliant

      Description
       Diaphragm seals are used to protect the pressure measuring instrument from aggressive, adhesive, crystallising, corrosive,highly viscous, environmentally hazardous or toxic media.A diaphragm made of the appropriate material provides for the separation from the medium to be measured. Thus even
the most difficult measuring requirements can be met by combining measuring instruments with diaphragm seals.
       A fluid inside the system, which can be chosen to suit the particular application, hydraulically transmits the pressure to the measuring instrument.
       Almost limitless application possibilities exist due to the large number of available variants, such as diaphragm seal designs or materials. The type of process connection （flange,
threaded and sterile connection） and the basic method of manufacture are important design differentiation criteria.
       For further technical information on diaphragm seals and diaphragm seal systems see IN 00.06 "Application, operating principle, designs"

       The model 990.24 diaphragm seal with VARIVENT®
connection is particularly suited for use in sterile processes and is adapted to the process via the VARINLINE® access unit. This enables a hygienic integration of measuring instruments into pipelines or, by means of VARINLINE® housing connection flanges, into tanks.
       The diaphragm seal systems can withstand the cleaning vapour temperatures occurring in the SIP processes and thus ensure a sterile connection between the medium to be measured and the diaphragm seal.
       Assembly of the diaphragm seal and measuring instrument is made via a direct assembly as standard or optionally via a cooling element or a flexible capillary.
       For the material selection WIKA offers a variety of solutions,in which the upper body and the diaphragm are made of identical materials. Stainless steel 316L （1.4435） is used as standard material, other special materials are available on request.

Measuring systems with the model 990.24 WIKA diaphragm seal are successfully used in production and
filling processes in the food, pharmaceutical and cosmetics industries.

     Standard version
      Type of process connection
      VARIVENT® connection for VARINLINE® access unit and
      VARINLINE® housing connection flange, stainless steel
      1.4435 （316L）
      ■ Form F （installation Ø 50 mm, clamp Ø 66 mm） for VARINLINE® access unit DN 25, ISO 33.7 and 1" or
      ■ Form N （installation Ø 68 mm, clamp Ø 84 mm） for VARINLINE® access unit DN 40 - DN 125, ISO 42.4 -114.3 and 1 ½" - 6"

Nominal pressure
PN 25 bar, observe the pressure rating of the VARINLINE® access unit!

     Measuring ranges
      min. 0 ... 1 bar, max. 0 ... 25 bar
      （also vacuum and +/- measuring ranges）

Material of upper body
CrNi-Stahl 1.4435 （316 L）

Material of wetted parts
Diaphragm: Stainless steel 1.4435 （316L）

Surface roughness of the wetted parts
Ra ≤ 0.76 μm （except for weld seam）

     Level of cleanliness of wetted parts
      Oil and grease free per ASTM G93-03 level E （WIKA
      standard） and ISO 15001 （< 550 mg/m2）

Connection to the measuring instrument
Axial weld-in connection