Product description
The Mark 56 Series is a highly accurate and economical air loaded back pressure regulator that provides regulation from a local station or from a remote station. The Mark 56 requires no control spring or pilot. Instead, a static air signal is applied to the top of the diaphragm to determine the setpoint. This valve can be coupled with an extended range I/P for remote operation. It can also be manually controlled with a MK12 loading station or a LowFlow JR regulator.
Back Pressure Reducing Valve MK56
Size
- 1/2″ – 6″ (DN15 – DN150)
Cv (Kv)
- up to 395 (up to 340)
Diaphragm
- Jorlon, Stainless Steel, Buna-N, Viton
Setpoint
- up to body ratings
Body Materials
- Ductile Iron, Bronze, Carbon Steel, Stainless Steel, Cast Iron
End Connections
- Threaded, Flanged, Socket Weld, Butt Weld
Features and Benefits
- All metal-to-metal contacts – No gaskets or o-rings to wear out (2”/DN50 and under)
- Versatile Application – Use on steam, air, gas, liquids, or chemicals
- Sliding gate seats provide straight-through flow for reduced turbulence and quiet operation
- Short stroke for fast response and accurate regulation
- Easily interchangeable CV’s
- Tight shutoff
STEP Files
- 56-050-BRDI-BP
- 56-050-BRDI-BT
- 56-050-BRDI-F3
- 56-050-BRDI-F5
- 56-050-BRDI-PT
- 56-050-CSS6-BP
- 56-050-CSS6-BT
- 56-050-CSS6-F3
- 56-050-CSS6-F5
- 56-050-CSS6-PT
- 56-050-CSS6-SW
- 56-075-BRDI-BP
- 56-075-BRDI-BT
- 56-075-BRDI-F3
- 56-075-BRDI-F5
- 56-075-BRDI-PT
- 56-075-CSS6-BP
- 56-075-CSS6-BT
- 56-075-CSS6-F3
- 56-075-CSS6-F5
- 56-075-CSS6-PT
- 56-075-CSS6-SW
- 56-100-BRDI-BP
- 56-100-BRDI-BT
- 56-100-BRDI-F3
- 56-100-BRDI-F5
- 56-100-BRDI-PT
- 56-100-CSS6-BP
- 56-100-CSS6-BT
- 56-100-CSS6-I3
- 56-100-CSS6-I5
- 56-100-CSS6-PT
- 56-100-CSS6-SW
- 56-125-BRDI-BP
- 56-125-BRDI-BT
- 56-125-BRDI-F3
- 56-125-BRDI-F5
- 56-125-BRDI-PT
- 56-150-BRDI-BP
- 56-150-BRDI-BT
- 56-150-BRDI-F3
- 56-150-BRDI-F5
- 56-150-BRDI-PT
- 56-150-CSS6-BP
- 56-150-CSS6-BT
- 56-150-CSS6-I3
- 56-150-CSS6-I5
- 56-150-CSS6-PT
- 56-150-CSS6-SW
- 56-200-BRDI-BP
- 56-200-BRDI-BT
- 56-200-BRDI-F3
- 56-200-BRDI-F5
- 56-200-BRDI-PT
- 56-200-CSS6-BP
- 56-200-CSS6-BT
- 56-200-CSS6-I3
- 56-200-CSS6-I5
- 56-200-CSS6-PT
- 56-200-CSS6-SW
- 56-250-CSS6-I3
- 56-250-CSS6-I5
- 56-300-CSS6-I3
- 56-300-CSS6-I5
- 56-400-CSS6-I3
- 56-400-CSS6-I5
- 56-600-CSS6-I3
- 56-600-CSS6-I5