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Model
910 917 927
911 920
916 921
Connection Model
B-Male x Female NPT
J-150# Flange x 150# Flange
L-300# Flange x 150# Flange
N-600# Flange x 150# Flange
Z-Tr i-clover (911)
Orifice
DF H
EGJ
Inlet Size
C -
1
/2-inch [12.7 mm] F - 1
1
/4-inch [31.8 mm]
D -
3
/4-inch [19.1 mm] G - 1
1
/2-inch [38.1 mm]
E- 1-inch [25.4 mm] H - 2-inch [50.8 mm]
Seat/Seal Material
M-Metal-to-metal – Models 910, 911, 920, 921, 927
B-BUNA-N – Models 916, 917 only
E-EPR – Models 916, 917 only
S-Silicone – Models 916, 917 only
V-Viton
®
– Models 916, 917 only
N-Neoprene – Models 916, 917 only
Variation (01 through 99)
Number provided only by Kunkle to cover specific feature
or option.
01 - Threaded cap 05 - Plain lever with vibration
02 - Threaded cap with gag dampener
03 - Plain lever 06 - Packed lever
04 - Plain lever with gag 07 - Packed lever with gag
60 - BSP Threads
Design Revision
Indicates non-interchangeable revision. Revision A
Valve Service
B-High-temperature Hot Water ASME Sect. I (Model 927 only) -
Packed lever only
C-Organic Fluid ASME Section I (Threaded Cap only)
(Model 920 only)
J-Liquid ASME Section VIII (Threaded Cap/Packed Lever only)
K-Air/Gas ASME Section VIII (Plain Lever/Packed Lever
required for air)
L-Steam ASME Section VIII (Plain Lever/Packed Lever required)
M- Non-code Liquid (Threaded Cap/Packed Lever only)
N-Non-code Air/Gas
P-Non-code Steam
Q- Vacuum (Threaded Cap/Packed Lever only)
R-Forced Flow Steam ASME Section I (Plain Lever only)
(Model 921 only)
Spring Material
E-SS (-60° to 550°F) [-51° to 288°C]
F-High-temperature Alloy Steel (-60° to 800°F) [-51° to 427°C]
Set Pressure
3 psig (0003) through 900 psig (0900) [0.48 barg through 62 barg]
Vacuum 6-inch [200 mbarg] HG (inches of Mercury) (0006) through 29-inch [1000 mbarg]
HG (0029) Models 910, 911, 920, 921
Model Number/Order Guide
1
23456789101112131415
10BJHM01AKE0300
Model
Number
Position
Example
Models 910, 911, 916, 917, 920,
921, 927 ASME Section VIII,
Air/Gas/Steam/Liquid, ‘UV’
National Board Certified. 927 is
ASME Section I Special Purpose,
Steam, ‘UV’ National Board
Certified. 910, 911 Available for
Vacuum Service
0
9
Kunkle Safety and Relief Products
Tyco reserves the right to change product design and specifications KUKMC-0392
without notice. Copyright © 2002 by Tyco International Ltd. 6
Models 910, 911, 912, 913, 916, 917, 918, 919, 920, 921 and 927