Function: Reducing
Size: From 1/2’’ up to 2”
Body material: Carbon steel, Stainless steel, and Exotic materials
Trim materials: Stainless steel (std.) and Exotic materials
Diaphragms: Polychloroprene, PTFE, FKM, Stainless steel, others
End connections: Threaded and Flanged
Max rating: ANSI 1500
Cv Range: From 0.033 up to 12.8
Function: Reducing and Relief
Size: From 1/2’’ up to 2”
Body material: Carbon steel, Stainless steel
Diaphragms: NBR
End connections: Threaded and Flanged
Max rating: ANSI 1500
Cv Range: From 0.04 up to 4.9
Function: Reducing, Relief, and Backpressure
Size: From 1’’ up to10” standard Special design for 20’’
Body material: Carbon steel, Stainless steel, and Exotic materials
Diaphragms: Polychloroprene, PTFE, FKM, Stainless steel, others
End connections: Flanged
Max rating: ANSI 1500
Cv Range: From 6 up to 850
A self-operated control valve, also known as a self operated pressure control valve or self operated temperature control valve, is an auto control valve that relies on the pressure and temperature of the medium flowing through the valve as an energy source to drive the self operated control valve to work automatically and does not require an external power supply and secondary instrumentation.
Body Sizes and Face to Face Dimensions
| Size | Flanged | Threaded | ||||
| PN16 | NPT-F | |||||
| PN25 | ||||||
| PN40 | GAS-F Con | |||||
| ANSI 150RF | BSP-F | |||||
| ANSI 300RF | ||||||
| ANSI 600RF | ||||||
| A | B | C | A | B | C | |
| 1/2"(DN15) | 285mm | 80mm | 115mm | 130mm | 80mm | 115mm |
| 3/4"(DN20) | ||||||
| 1"(DN25) | ||||||
| 1 1/2"(DN40) | ||||||
| 2"(DN50) | N/A | N/A | N/A | |||
Sectional Drawing of R640 Series
Body Sizes and Face to Face Dimensions
| Size(DN) | Threaded | ||||
| NPT-F BSP-F | |||||
| A | B | C | ØD | E | |
| 1/2’’ DN15 | 305mm | 89mm | 345.5mm | 250mm | 122mm |
| 3/4’’ DN20 | |||||
| 1’’ DN25 | |||||
| 1 1/2’’ DN40 | |||||
