Mark 74 Series
Company Name : Jordan
Sizes: 1/2″ through 2″ (DN15 through DN50) End Connections
- Threaded (NPT, BSPT, BSPP)
- ANSI Flanges (150#, 300#)
- DIN Flanges (PN10/16, PN25/40) Body Materials
- Ductile lron
- Bronze
- Carbon Steel (WCB)
- Stainless Steel (CF8M) Trim Materials
- 303SS – standard for Ductile lron, Bronze or Car bon Steel valves
- 316SS – standard on Stainless Steel valves
- Jorcote on SST – standard
- 316SS
- Hastelloy C
- Spring-loaded Tetlon® (to 500º F/260º C)
- Braided (above 500º F/260º C)
Specifications
Auxilliary Stem Packing
- Spring-loaded Tetlon® (to 500º F/260º C)
- Braided (above 500º F/260º C)
Body Rating: Ductile lron, Carbon Steel, and Stain less Steel up to 500 psi (34,5 bar) and 650º F (343ºc); bronze up to 500 psi (34,5 bar) depending upan spe cific construction. Temperature limit ot -20º F (-28,9º C) on all materials.
Action
- Direct (air-to-close)
- Reverse (air-to-open)
Shutott: ANSI Class IV
Ranges:
- controller-operated: 3-15, 3-9, 6-30, 9-15 psi
(0,2-1 ,0; 0,2-0,6; 0,4-2, 1; 0,6-1,0 bar)
Positioners: side or top mounted positioners are available (specify MK74TP or MK74SP)
Rangeability:
- Mark 74 (1/2″ – 1-1/2″) (DN15 – DN40): 100:1
- Mark 74 2″ (DN50): >200:1