Noshok
Type 20 Welded, Front Flush Diaphragm Seals

Key Features

  • Designed for applications requiring an NPT male threaded process connection
    and with a flush diaphragm
  • Flush diaphragm construction prevents clogging and process material build-up
  • Constructed with a 316 stainless steel housing and diaphragm for strength and 
    durability
  • Maximum pressure rating is 9,000 psi
  • Available instrument connection sizes are 1/4" and 1/2" with a process connection
    size of 1/2" NPT male to 2" NPT male
  • Consider gauge size, pressure range, media composition, ambient and operating temperature, and maximum working pressure when selecting
  • For process temperatures over 212 °F a capillary or cooling element is recommended,
    contact factory to order
  • Fill fluid must be compatible with process media; i.e. glycerine may become volatile
    in conjunction with a strong oxidizing agent such as chlorine, forms of oxygen or
    peroxide and nitric acids 
Quote Request
Click to Enlarge

PRODUCT SPECIFICATIONS
Suitable pressure gauge sizes Will also operate with most transducers, transmitters and pressure switches
Minimum pressure span 1/2" NPT: 1,500 psig
3/4" NPT and above: 160 psig
Maximum working pressure 9,000 psig
Operating temperature Refer to fill fluid expansion factors table