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AP 90PA0 pages
SERIES AP 90PA & AP 91PA
PNEUMATICALLY ACTUATED BULK GAS REGULATOR
Source and Line Application
• Actuation control pressure
isolated from process gas
by two seals
• “Tied diaphragm” design
with bellows sensing
element
• Metal seal to atmosphere
• Flow rates up to
5,000 slpm (175 scfm)
of Nitrogen
• 100 psig outlet achieved
with 80 psig control
pressure or less
• Actuator ‘fail safe’
Source pressure AP 90PA
AP 91PA
Delivery pressure AP 90PA
AP 91PA
Proof pressure
AP 90 PA & AP 91PA
Burst pressure
AP 90 PA & AP 91PA
instructions available at
www.aptech-online.com
in the Tech Briefs section
Body, nozzle
Seat
Bellows, poppet
Bonnet seal
Poppet spring
Finish
400% of maximum rating
Other Parameters
Inlet/outlet port connectors
Control pressure port
Flow coefficient (Cv) AP 90PA
(Cv) AP 91PA
Internal volume
Operating temperature
Surface finish
Inboard leakage
Outboard leakage
Leakage across the seat
Supply pressure effect
AP 90PA
AP 91PA
Materials
Wetted Parts
150% of maximum rating
**Source pressure 250 psig (17 bar) maximum for outlet pressure above 100 psig (7 bar)
normally closed (NC)
• Installation and operating
vacuum to 1700 psig (117 bar)
vacuum to 800 psig (55 bar)
10 to 100 psig (0.7 to 6.9 bar)
10 to 150 psig (0.7 to 10.3 bar)*
Series AP 90PA & AP 91PA
Stainless Steel 316L
PCTFE (Polyimide optional)
Ni-Cr-Mo alloy / UNS N06022
Stainless Steel 316
Ni-Co alloy / UNS R30003
electropolished and passivated
1/2, 3/4 or 1 inch face seal or tube weld
1/8 inch NPT
3.0
4.0
12 in3 (197 cm3)
-40° to +160°F (-40° to +71°C)
15 µin Ra max / 10 µin. Ra avg.
(0.4/0.25 µm) standard; 10 µin (0.25 µm);
7 µin (0.18 µm); and 5 µin (0.13 µm) Ra max optional
2 x 10-10 sccs He
2 x 10-9 sccs He
4 x 10-8 sccs He
3.7 psig per 100 psig source pressure change
5.4 psig per 100 psig source pressure change
ENGINEERING DATA — SERIES AP 90PA & AP 91PA BULK GAS REGULATOR
• Single stage
Operating Parameters
All specifications subject to change without notice.
687 TECHNOLOGY WAY NAPA, CA 94558 • (707) 259-0102 • FAX (707) 259-0117
www.aptech-online.com
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