Steriflow Mark 95AA Series - Manual (Page 2)

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Sizes: 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1-1/2"
(DN40), 2" (DN50), 3" (DN80)
End Connections
• Quick disconnect fittings ( to match Tri-Clamp®
fitting)
• DIN/ISO sanitary connections
Body & Trim Materials: 316L Stainless Steel (ASTM
A47, S31603)
Seat Materials
• Optional soft seat (for Cv 1.5, 1" size and above)
– Jorlon (FDA & USP Class VI) for steam and hot
fluid service to 338°F (170°C)
– PEEK (FDA & USP Class VI) for steam and hot
fluid service to 350° (177°C)
–
PTFE to +252°F (122°C) continuous or 275°F
(135°C) intermittent [not to exceed 15 min. in a one
hour period]
FDA, USP Class VI
Note: consult factory for 1/2" & 3/4" soft seat materials
Spring Housing Materials
• CF8M cast SST (1/2" – 1-1/2")
• Fabricated 316L SST (2" – 3")
Diaphragm Materials
• EPDM/Nylon (to 275°F, 135°C) – FDA only
• Jorlon (to 400°F, 204°C) – FDA, USP Class VI
• Ulta-thin Jorlon (to 400°F, 204°C), FDA, USP
Class VI (for use with 3-8 range spring only)
O-Ring Materials
• EPDM (to 275°F, 135°C) - FDA, USP Class VI
• Buna-N (to 225°F, 107°C) - FDA
• Viton (to 400°F, 204°C) - FDA, USP Class VI
• Silicone (to 400°F, 204°C) - FDA, USP Class VI
• Teflon-Encapsulated Viton (to 400°F, 204°C) -
FDA, USP Class VI
• Teflon-Encapsulated Silicone (to 400°F, 204°C) -
FDA, USP Class VI (1-1/2" - 3")
Shutoff: Class VI soft seat; Class III hard seat
Body Pressure Temperature Rating: (dependent
upon construction)
Pressure on 1/2", 3/4" & 1" size limited to 225 psig (15,5 bar)
@ 100°F and 200 psig (13,8 bar) @ 400°F if using Ultra-thin
Jorlon diaphragm.
Valve Size PSIG @ 100°F PSIG @ 450°F
1/2", 3/4" & 1" 350 (24,1 bar) 250 (17,2 bar)
1-1/2" , 2" & 3" 200 (13,8 bar) 200 (13,8 bar)
Valve Size Set Point Ranges, PSI (bar)
1/2", 3/4" & 1"
3-8* (0,2-0,5), 5-30 (0,3-2,1),
15-50 (1,0-3,4), or 35-90 (2,4-6,2)
1-1/2"
3-25* (0,2-1,7), 10-25 (0,7-1,7),
15-40 (1,0-2,8) or 35-85 (2,4-5,9)
2"
5-25* (0,3-1,7), 10-25 (0,7-1,7)
or 15-60 (1,0-4,1)
3" 15-25 (1,0-1,7) or 15-60 (1,0-4,1)
* Range available with elastomer or Ultra-thin Jorlon
diaphragm only. Maximum pressure drop 40 psi .
Set Point Spring Ranges
Cv (Kv) Ratings:
Valve Size
Elastomer & Jorlon Diaphragms
Cvs (Kvs)
1/2", 3/4"** 0.5 (04,), 1.5 (1,3)
1"** 1.5 (1,3), 3.0 (2,6) or 5.5 (4,7)
1-1/2" 4.5 (3,9) or 10.0 (8,6)
2"
10.0 (8,6) or
19.0 (16,3)
3"
10.0 (8,6) or
28.0 (24,1)
Maximum Allowable Pressure Differential: 200 psi
(3-8 spring range has a max of 40 psi)
Maximum Allowable Pressure Setpoint: The total
of the spring setpoint and additional air pressure can-
not exceed:
• 3/4" – 1": 135 psi (9,3 bar)
• 1-1/2": 100 psi (6,9 bar)
• 2" – 3": 80 psi (5,5 bar)
Minimum Allowable Differential Pressure: No
restrictions
Minimum Allowable Setpoint: Equivalent to the
minimum spring rate set point:
• 3/4" – 1": 2 psi (0,14 bar)
• 1-1/2": 3 psi (0,21 bar)
• 2": 5 psi (0,34 bar)
Surface Finish: Refer to MK95 data sheet
** Cv's limited when using the 3-8 range spring