Valve Selection Guide
Series Metals Coeff. of Disch. (Slope) Max Set Pressure
PSI (BAR)

Connections
Air/Gas Steam Liquid Sizes NPT BSPT BSPP Tri-Clamp Flange
Soft Seat Options¹ Service Certifications Temperature
ASME Section I ASME Section VIII CE CRN Min°F (°C) Max°F (°C)
M P B V E K Z
740 Brass/Bronze .878 .878 .791 350 (24.1) ½”-3”

Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -320° -(196°) 406° (208°)
741 Stainless/Bronze .878 .878 .791 1500 (103.4) ½”-3” Inlet Only
Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -320° -(196°) 425° (218°)
742 Stainless/Carbon .878 .878 .791 1500 (103.4) ½”-3” Inlet Only
Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -20° -(29°) 800° (427°)
743 Stainless/Stainless .878 .878 .791 1500 (103.4) ½”-3” Inlet Only
Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -320° -(196°) 800° (427°)
744 Monel/Bronze .878 .878 .791 1500 (103.4) ½”-3” Inlet Only
Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -320° -(196°) 425° (218°)
745 Monel/Carbon .878 .878 .791 1500 (103.4) ½”-3” Inlet Only
Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -320° -(196°) 800° (427°)
746
Monel/Stainless .878 .878 .791 1500 (103.4) ½”-3” Inlet Only
Air/Gas/Liquid/Steam
+15 PSI +7 PSI +15 PSI -320° -(196°) 800° (427°)
747 No-Lead/No-Lead .878 .878 .791 350 (24.1) ½”-1½”

Air/Gas/Liquid/Steam



-320° -(196°) 425° (218°)
748 Stainless/No-Lead .878 .878 .791 1500 (103.4) ½”-1½” Inlet Only
Air/Gas/Liquid/Steam



-320° -(196°) 425° (218°)
560 Brass/Bronze .856 .856 - 250 (17.2) ½”-2½” Inlet Only
Air/Gas/Steam +15 PSI

  -20° -(29°) 406° (208°)
563 Stainless/Bronze .856 .856 - 300 (20.7) ½”-2½” Inlet Only
Air/Gas/Steam +15 PSI
 
-20° -(29­°) 425° (218°)
570 Brass/Bronze .856 .856 - 300 (20.7) ½”-2½” Inlet Only
Air/Gas/Steam
+15 PSI +7 PSI +15 PSI -20° -(29°) 425° (218°)
573
Stainless/Bronze .856 .856 - 300 (20.7) ½”-2½” Inlet Only
Air/Gas/Steam
+15 PSI +7 PSI +15 PSI -20° -(29°) 425° (218°)
69 Brass/Bronze -
-
Note 3 600 (41.4) ½”-3”






Liquid Non-code Only -20° -(29°) 406° (208°)
69 Stainless/Bronze -
-
Note 3
600 (41.4) ½”-3”






Liquid Non-code Only -320° -(196°) 425° (218°)
88/89 Brass/Bronze Note 4 -
-
250 (17.2) ½”-3”






Air/Gas
Note 6
Note 6 -60°2 -(51°) 406° (208°)
88/89
Stainless/Bronze Note 4 -
-
250 (17.2) ½”-3”






Air/Gas
Note 6
Note 6 -320° -(196°) 425° (218°)
140 Brass Note 5 -
-
350 (24.1) ¼"-¾”






Air/Gas
+15 PSI

-20° -(29°) 406° (208°)
141 Brass/Stainless Note 5 -
-
450 (31.0) ¼"-¾”






Air/Gas
+15 PSI

-20° -(29°) 406° (208°)
143 Stainless Note 5 -
-
450 (31.0) ¼"-¾”






Air/Gas
+15 PSI

-20° -(29°) 800° (427°)
120 Brass/Bronze (1.037) (2.910) - 200 (13.8) ½”-1”








Air/Gas/Steam
+15 PSI
+15 PSI -20° -(29°) 425° (218°)
130 Brass/Bronze (.403) (1.130) - 200 (13.8) ¼"-½”








Air/Gas/Steam
+15 PSI
+15 PSI -20° -(29°) 425° (218°)
51
Brass/Bronze -
-
(.924) 750 (51.7) ¼"-½"









Air/Gas/Liquid/Steam Non-code Only
-20° -(29°) 406° (208°)
55
Brass/Bronze -
-
(.924) 200 (13.8) ¼"-½”









Liquid Non-code Only -20° -(29°) 406° (208°)

1 Soft Seat Options: M – Metal, P – PTFE, B – Buna, V – Viton, E – EPDM, K – Kalrez, Z – Markez
2 Minimum Temp drops to -320°F -(196°C) with PTFE option.
3 Series 69 slopes are as follows: ½” - 1.586, ¾” - 3.088, 1” - 4.820, 1¼” - 6.821, 1½” - 8.769, 2” - 13.019, 2½” - 17.540, 3” - 22.135
4 Series 88/89 slopes are as follows: ½” - 0.644, ¾” - 0.930, 1” - 2.274, 1¼” - 3.504, 1½” - 4.900, 2” - 7.404, 2½” - 13.416, 3” - 16.980
5 Series 140 slopes are as follows: A - 0.924, B – 1.487
6 Series 88 is ASME and CRN certified from ½ to 2”. 2½” and 3” are non-code.

740 Series

ASME SECTION VIII FOR AIR-GAS-STEAM OR LIQUID SERVICE

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 3"
Pressures to 300 PSI
Full nozzle, high capacity
Brass and bronze options

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741 Series

ASME SECTION VIII FOR AIR-GAS-STEAM OR LIQUID SERVICE

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 3"
Pressures to 1500 PSI
Full nozzle, high capacity
Stainless steel and bronze options

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742 Series

ASME SECTION VIII FOR AIR-GAS-STEAM OR LIQUID SERVICE

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 3"
Pressures to 1500 PSI
Full nozzle, high capacity
Stainless steel and Carbon Steel

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743 Series

ASME SECTION VIII FOR AIR-GAS-STEAM OR LIQUID SERVICE

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 3"
Pressures to 1500 PSI
Full nozzle, high capacity
Stainless steel

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69/55 Series

LIQUID RELIEF VALVE - FIELD ADJUSTABLE

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/4" to 3"
Pressures to 600 PSI

Bronze/Brass and Stainless options

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88/89 Series

ASME SECTION VIII SAFETY VALVE FOR AIR/GAS/STEAM

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 3"
Mid-level capacity
Bronze/Brass and Stainless options

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560 Series

ASME SECTION I SAFETY VALVE FOR STEAM

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 2 1/2"
Pressures to 250 PSI
Bronze/Brass and Stainless options

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570 Series

ASME SECTION VIII SAFETY VALVE FOR AIR-GAS-STEAM

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes from 1/2" to 2 1/2"
Pressures to 300 PSI
Bronze and stainless steel options

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120 Series

ASME SECTION VIII SAFETY VALVE FOR AIR-GAS-STEAM

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes  1/2" - 3/4" - 1"
Pressures to 200 PSI
Brass/bronze and stainless options

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130 Series

ASME SECTION VIII SAFETY VALVE FOR AIR-GAS-STEAM

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes 1/4" - 3/8" - 1/2"
Pressures to 200 PSI
Brass and stainless steel options

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140 Series

SAFETY VALVE FOR AIR/GAS

Safety Valves, Relief Valves, Safety Relief Valves and Pressure Relief Valves from AquatrolInlet Sizes 1/4" - 3/8" - 1/2" - 3/4"
Pressures to 450 PSI
Brass and stainless steel options

More information