Stauff Test 20 x 1/4" NPT Adapter

Sale price $13.55 Regular price $15.94

Test 20 x 1/4" NPT Zinc Plated Adapter with Ball Check 

New Part # SMK-20-1/4NPT-V-D-W3

Old Part Number: SMK20-1/4NPT-VD-C6F  

Stauff Test 20 Fitting Specifications PDF


  • Thread Connection: Male Test 20 (M16 x 2) x Male 1/4" NPT
  • Sealing: Internal sealing made of FPM (Viton)
  • Material: Steel, zinc/nickel plated CrVI Free
  • Ball: Stainless Steel
  • Max Working Pressure: 9137PSI 
  • Temperature Range: -4F to 392F


  • Test system at working pressure
  • Leak proof connection before ball check is open
  • Simple connection to measurement, control and switching devices
  • Self locking metal protective cap 

Call 1-888-979-0811 or email with questions about our Stauff test 20 fittings