| GPR-2000 |
Pilot operated type / Diaphram type |
| GD-20R |
Direct acting type / Ductile cast iron |
| GD-20RC |
Direct acting type / Ductile cast iron / Nylon coating |
| GD-21 |
Directacting type / Differential pressure regulating valve |
| GD-7R |
Direct acting type / Piston type |
| GD-4R |
Direct acting type / For low pressure |