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Add the Model 990.12 Flanged Process Connection Diaphragm Seal to your store or catalog  
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WIKA Flanged Process Connection Diaphragm Seal, Model 990.12

Model 990.12 Flanged Process Connection Diaphragm Seal

Brand: WIKA Alexander Wiegand SE & Co. KG
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Threaded Design.
Features
  • Flanged process connection per EN/ASME (NPS) ½", ¾", 1" or DN 15, 20, 25
  • Design with internal diaphragm and diaphragm bed, upper and lower housing threaded
  • Wide variety of special materials

Specifications

Brand

Gasket Material

  • VI = Viton
  • BN = Buna-N
  • TF = Teflon, virgin
  • AS = Stainless Steel, Silver-Plated

Diaphragm Material

  • SS = 316L Stainless Steel
  • MO = Monel 400
  • HB = Hastelloy B-2
  • HC = Hastelloy C-276
  • PF = 316 Stainless Steel, Teflon Coated
  • TF = 316 Stainless Steel, virgin Teflon-lined
  • TA = Tantalum
  • TI = Titanium, Grade 2
  • NI = Nickel 200
  • IN = Inconel 600
  • IC = Incoloy 825
  • CA = Carpenter 20
  • SA = 316 Stainless Steel, Gold-Plated
  • VI = Viton

Clamp & Support Material

  • CS = Carbon Steel, Zinc-Plated
  • SS = Stainless Steel
  • HS = High Temperature Stainless stee

Flushing Connection

  • 0 = None
  • 1 = 1/8" NPT Female
  • 2 = 1/4" NPT Female

Lower Housing Material

  • CW = Carbon Steel, Nickel-Plated Teflon-lined, virgin
  • SC = 316 Stainless Steel, Teflon-lined, carbon
  • SW = 316 Stainless Steel, Teflon-lined, White
  • TC = Carbon Steel, Nickel-Plated,Teflon Coated
  • TS = 316 Stainless Steel, Teflon Coated
  • TA = Tantalum
  • TI = Titanium, Grade 2
  • NI = Nickel 200
  • IN = Inconel 600
  • IC = Incoloy 825
  • CA = Carpenter 20
  • CC = Carbon Steel, Nickel-Plated Teflon-lined, carbon
  • HC = Hastelloy C-276
  • MO = Monel 400
  • CS = Carbon Steel, Nickel-Plated
  • SS = 316L Stainless Steel
  • HB = Hastelloy B-2

Upper Housing Material

  • CS = Carbon Steel, Nickel-Plated
  • SS = 316L Stainless Steel
  • TI = Titanium, Grade 2

Flange Rating

  • 150R = 150#RF
  • 300R = 300#RF
  • 600R = 600#RF
  • 15XR = 900#/1500#RF

Process Connection

  • 1.0 = 1" Pipe
  • 1/2 = 1/2" Pipe
  • 3/4 = 3/4" Pipe
  • 1.5 = 1.5" Pipe
  • 2.0 = 2" Pipe

Instrument Connection

  • 1/4 = 1/4" NPT Female
  • 1/2 = 1/2" NPT Female
  • CPL = Capillary Connection

Diaphragm Seal Design

  • L990.12 = Welded Diaphragm

  • Suitable for corrosive, contaminated, highly viscous or hot pressure media
  • Chemical process industry
  • Petrochemical industry
  • High process pressures

Documentation

Data Sheet

Operating Instructions

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