816 series Technical features:

  • non-rising stem;
  • body and bonnet connected by bolts;
  • body and bonnet sealing: spiral wound gasket;
  • gate: parallel expanding, with spring;
  • stem packing for high temperature and steam service;
  • end connection: 6B flange type acc. to API 6A (with Ring Joint), or API threaded;
  • back seat permits to replace stem packing under pressure.

 

 

 

 

 

 

 

 

 

 

 

 

 

geothermal r2

 

 

 

 

 

 

GT 910 series Technical features:

  • non-rising stem;
  • body and bonnet connected by bolts;
  • body and bonnet sealing: metallic gasket;
  • gate: parallel expanding, with spring;
  • stem packing: Graf oil gaskets & soft packing;
  • end connection: 6B flange type acc. to API 6A (with Ring Joint), or API threaded;.

 

 

 

Design, manufacturing  API Spec 6A
  Size   2 1/16” to 4 1/16”
  Working Pressure   2,000; 3,000; 5,000 PSI
  Temperature Range   0 to 650 oF (-18 to + 345)oC