Mark 70 Series
Company Name : Jordan
Sizes: (note: 1/4″ & 3/8″ sizes use 1/2″ body with reducers)
- Mark 70/70PG: 1/4″ through 2″ (DN8 through DN50)
- Mark 707: 1/2″ through 6″ (DN8 through DN150)
- Mark 711: 2-1/2″ through 6″ (DN65 through DN150)
- Threaded (NPT, BSPT, BSPP – through 2″ sizes/DN50)
- ANSI Flanges (150#, 300#)
- DIN Flanges (PN10/16 , PN25/40)
- Ductile lron
- Bronze ( 1/2″ – 2″/DN 15 – DN50)
- Carbon Steel (WCB)
- Stainless Steel (CF8M)
- 303SS for CI and DI body valves
- 316SS for SS body valves
- Jorcote on SST – standard
Specifications
Yoke Material: Cast lron
Actuator: Steel
Diaphragm: Buna-N (standard to 200ºF/93ºC)
Stem Packing: Buna-N (standard to 200ºF/93ºC)
Service: Steam, water, oil, gas, air and chemicals
Shutoff: ANSI Class IV
Ranges
- Mark 70/707/711: 3-15 , 3-9 , 9-15, 6-30 psi
(0,21-1,03; 0,21-0,62; 0,62-1,03; 0,41-2,07 bar) - Mark 70PG: consult factory for ranges
Action
- Direct (air signal clases valve)
- Reverse (air signal opens valve)
Positioner: side or top-mounted positioners are avail able to overcome the normal hysteresis for a control valve and actuator, and to ensure that the valve stem position is always directly proportional to the control valve command signal. See the Positioner section for more details.
Rangeability
- MK70 : 1/2″ – 1-1/2″, 100:1
- MK70: 211>200: 1
- MK711: 2-1/2″ – 3″, >200:1
- MK711: 4″ – 6″, 100:1
- MK707: all sizes 100: 1