Design
According to BS 1873, ASME B16.34, API 602, ISO 15761 – BS 5352
· Bolted bonnet and pressure seal design
· Outside screw and yoke
· Rising and rotating stem
Fire Safe tested API 6FA, API 607, ISO 10497
Costruction Materials
GLB can manufacture valves with all types of material complying with ASTM & ASME standards and in accordance to customer needs and specifications (NACE standard included).
The main casted and forged materials used are:
BODY AND BONNET
Cast or forged carbon steel, low temperature carbon steel, alloy steel, stainless steel, exotic alloy, etc.
TRIM
Forged or pressed carbon steel, low temperature carbon steel, alloy steel, stainless steel, exotic alloys, etc.
Range of Production
PRESSURE SEAL
ENDS | R.F. – R.T.J. – B.W. |
CLASS | – | – | – | 900 | 1500 | 2500 |
NPS (up | to) | – | – | – | 16″ | 16″ | 16″ |
BOLTED BONNET
ENDS | R.F. – R.T.J. – B.W. – S.W. – NPT |
CLASS | 900 | 1500 | 2500 |
NPS (up | to) | 16″ | 12″ | 12″ |