Cast Iron Liquid Relief Valves

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Cast Iron Liquid Relief Valves Features Bolted bonnet permits easy inspection and servicing without removal from system. Quality cast iron body and bonnet, insert and disc are available in either bronze or SS and lapped for optimum performance. Springs are steel with plating for corrosion protection. High lift, wing-guided disc offers high relieving capacity. Pivot between disc and spring corrects misalignment and compensates for spring side thrust. Model Descriptions Model 91: Bronze trim, with pressuretight cap. Suitable for maximum back pressure of 0 psig. Variation 0 for field adjustability. Model 18: Bronze trim, UL and FM approved for fire pump installations. Special design offers minimum set pressure of 0 psig. Easily adjustable with handwheel to 00 psig (17 psig with optional 1# inlet flange). Model 8: Bronze trim, with pressuretight cap. UL and FM approved for fire pump installations. Suitable for maximum back pressure of 0 psig. Supplied with handwheel. Applications Fire Pump Service, UL and FM approved. (Models 18, 8) Overpressure relief and protection of pumps, tanks, lines and hydraulic systems. Pressure regulation. Options SS trim. (insert and disc) (Variation 0) Female x Female NPT connections. (1 1 /-inch through -inch sizes) Inlet and outlet flanges per ANSI B1.1, 1-inch - 1#. Limited to 17 psig maximum set pressure. Model 8 Pressure and Temperature Limits 1 Model 91: to 00 psig; -0 to 0 F Models 18, 8: 0 to 00 psig; -0 to 0 F Furnished standard with ANSI rated B1.1-0# inlet flange and ANSI rated B1.1-1# outlet flange. Note 1. For other pressure and temperature limits, consult ANSI B1 cast iron flange standards. Flow Control Kunkle is either a trademark or registered trademark of Tyco International Services AG or its affiliates in the United States and/or other countries. All other brand names, product names, or trademarks belong to their respective holders. Total Flow Control Solutions Copyright 00 Tyco Flow Control. All rights reserved. -US-00

Parts and Materials Model 91, - Non-code, Liquid Relief Valve No. Part Name Materials 1 Body Iron, A1 Class A or B O-ring BUNA-N Insert 1 Disc 1 Spring Step Spring Steel, Aluminum Coated 7 Bonnet Gasket Fiber and Nitrile, Klinger C-00 or C-01 8 Hex Head Cap Screw Steel, SAE Gr. 9 Bonnet Iron, A1 Class A or B 10 Cap Gasket Fiber and Nitrile, Klinger C-00 or C-01 11 Compression Screw Bushing Iron, A 80--0 1 Jam Nut 1 Compression Screw 1 Cap Iron, A1 Class A or B 1 Socket Set Screw Steel, Commercial 1 Stem 1 1 1 11 10 9 8 7 1 1 Items not shown Handwheel Handwheel Jam Nut Iron, A1 Class A or B Steel Plated, Commercial 1 Model 91 Notes 1. Disc (item ) and insert (item ) material Bronze, B-8 Alloy 800 or B, also available in SS, A7 Gr. CF-8, as a package option.. Material CS with corrosion preventative coating, commercial Gr. or Brass, B1.. bolts required for - and -inch sizes, and 8 bolts required for -inch size.. Material Brass, B1 or Bronze, B8 casting.. Handwheel option available, delete cap (item 1) and gasket (item 10).. Inlet and outlet flanges per ANSI B1.1 0#, inlet flange standard and 1# inlet flange optional. Outlet flange 1#. Copyright 00 Tyco Flow Control. All rights reserved.

Parts and Materials 1 1 1 11 10 9 8 7 1 1 1 17 Models 18 and 8 - Non-code No. Part Name Materials 1 Body 1 Iron, A1 Class A or B O-ring BUNA-N Insert Disc Spring Step Spring Steel, Aluminum Coated 7 Bonnet Gasket Fiber and Nitrile, Klinger C-00 or C-01 8 Hex Head Cap Screw Steel, SAE Gr. 9 Bonnet Iron, A1 Class A or B 10 Compression Screw Bushing Brass, B1 11 Jam Nut Brass, B1 1 Compression Screw 1 Handwheel Iron, A1 Class A or B 1 Handwheel Locknut Steel Plated, Commercial Gr. 1 Spring Pin Steel, Commercial Gr. 1 Socket Set Screw Steel, Commercial Gr. 17 Stem Compression Screw Locknut Wrench Installation Instruction Steel, A Paper, Commercial Gr. 18 1 1 Model 18 Model 8 only 18 Cap 7 Iron, A1 Class A or B 19 Cap Gasket 7 Gasket, Klinger Silicone C-00 1 11 10 19 9 8 7 1 1 17 Notes 1. Inlet and outlet flanges per ANSI B1.1 0#, inlet flange standard and 1# inlet flange optional. Outlet flange 1#.. Disc (item ) and insert (item ) material Bronze, B-8 Alloy 800 or B, also available in SS, A7 Gr. CF-8, as a package option.. Material CS with corrosion preventative coating, commercial Gr., Brass, B1 or SS, A8 TY 1.. bolts required for - and -inch sizes, and 8 bolts required for -inch size.. Material Brass, B1 or Bronze, B8 casting (Model 18 only), B8 Alloy 800 (Model 8 only).. Not shown on assembly. 7. Cap (item 18), Gasket (item 19) and Locknut (item 11) factory installed. Handwheel (item 1) shipped unassembled (Models 18 and 8). 1 Model 8 Copyright 00 Tyco Flow Control. All rights reserved.

Specifications Model 91 1 Model Valve Connections Valve Dimensions Min/Max Approx. Number Size ANSI Standard in Set Pressure Weight (in) Inlet Outlet A B C (psig) (lb) 091A-G 1 1 / x 1 1 / Female NPT Female NPT / 1 / 11 7 /8 /00 7 091H-G 1 1 / x 1 1 / 1# Flange 1# Flange / 1 / 11 1 / /17 091K-G 1 1 / x 1 1 / 0# Flange 1# Flange / 11 1 / /00 091A-H x Female NPT Female NPT 1 /8 1 /8 1 / /00 091H-H x 1# Flange 1# Flange / /8 1 / /17 7 091K-H x 0# Flange 1# Flange /8 1 / /00 7 091A-J 1 / x 1 / Female NPT Female NPT 1 / 1 / 1 1 / /00 8 091H-J 1 / x 1 / 1# Flange 1# Flange 1 / / 1 1 / /17 091K-J 1 / x 1 / 0# Flange 1# Flange 1 / / 1 1 / /00 091A-K x Female NPT Female NPT 7 /8 7 /8 1 /00 81 091H-K x 1# Flange 1# Flange 7 /8 7 /8 1 / /17 98 091K-K x 0# Flange 1# Flange 1 / 7 /8 1 / /00 98 091A-M x Female NPT Female NPT /8 1 / /00 1 091H-M x 1# Flange 1# Flange /8 1 / /17 170 091K-M x 0# Flange 1# Flange /8 1 / /00 170 091H-P x 1# Flange 1# Flange 9 /8 8 1 / 1 /17 0 091K-P x 0# Flange 1# Flange 9 /8 8 1 / 1 /00 0 Models 18 and 8 1 Model Valve Connections Valve Dimensions Min/Max Approx. Number Size ANSI Standard in Set Pressure Weight (in) Inlet Outlet A B C (18) C (8) (psig) (lb) *8A-K x Female NPT Female NPT 1 /8 7 /8 0 /8 1 /8 0/00 8 *8H-K x 1# Flange 1# Flange 1 /8 7 /8 0 /8 1 /8 0/17 110 *8K-K x 0# Flange 1# Flange 1 /8 7 /8 0 /8 1 /8 0/00 110 *8A-M x Female NPT Female NPT /8 1 / 0/00 1 *8H-M x 1# Flange 1# Flange /8 1 / 0/17 18 *8K-M x 0# Flange 1# Flange /8 1 / 0/00 18 *8H-P x 1# Flange 1# Flange 9 /8 8 1 / 0 1 0/17 0 *8K-P x 0# Flange 1# Flange 9 /8 8 1 / 0 1 0/00 0 Notes 1. Temperature limits -0 F to 0 F.. Replace asterisk with desired model number. Data applicable to Models 18, 8. C C A A B Model 91 Models 18, 8 B Copyright 00 Tyco Flow Control. All rights reserved.

Capacities Liquid Overpressure Factors To determine capacities at other than % overpressure/accumulation, multiply capacity shown by: 10% Acc. = 0. 1% Acc. = 0.8 0% Acc. = 0.9 Models 18, 8 Capacities Note UL/FM Certified Capacities 1 Size, in GPM x 00 x 1000 x 000 1. Rated at 100 psig set pressure and % accumulation 1 psig. Non-code Liquid - % Accumulation (GPM) Set Pressure Inlet Size (psig) 1 1 / 1 / 10 79 1 177 1 0 111 17 0 7 89 0 77 1 1 07 8 109 0 88 17 1 0 99 17 7 9 707 11 0 108 19 01 77 19 70 117 08 8 87 17 80 1 8 01 89 1789 90 1 9 1 99 1897 100 10 9 89 0 1000 000 110 17 1 08 87 109 097 10 1 7 1 109 191 10 19 8 8 110 80 10 1 9 0 118 10 171 0 7 8 1 9 10 177 1 9 708 1 0 170 18 07 70 10 07 180 188 71 1 8 190 19 77 179 77 00 198 0 79 11 88 10 0 1 811 19 898 0 07 9 77 81 18 9 0 1 78 90 89 117 0 0 17 8 0 87 19 098 0 1 9 1 88 181 1 0 01 7 90 11 70 0 09 9 90 1 8 80 17 0 97 17 90 8 9 170 0 00 1 7 970 17 10 8 8 98 171 0 0 9 100 1789 0 70 1017 1817 0 8 9 717 10 18 0 1 77 108 1871 0 7 78 10 1898 70 9 79 78 1077 19 80 7 8 78 109 190 90 7 9 78 110 197 00 80 98 777 110 000 Copyright 00 Tyco Flow Control. All rights reserved.

Model Number/Order Guide Model Number Position Example 1 7 8 9 10 11 1 1 1 1 0 9 1 K M 0 1 A M S 0 0 0 Model 091 18 8 Connection Model A - Female x Female NPT H - 1# Flange x 1# Flange K - 0# Flange x 1# Flange Inlet Size G - 1 1 /-inch H - -inch J - 1 /-inch K - -inch M - -inch P - -inch Variation (01 through 99) 01 - Catalog standard 0 - SS seat and disc 0 - Model 91 w/handwheel (K, M and P inlet only) 1 - Viton O-ring - Viton O-ring with SS seat and disc Design Revision Indicates non-interchangeable revision. Current Design at Revision A. Valve Service M - Liquid Spring Material C - Aluminum Painted, ASTM A1 Steel (G, H, J inlet sizes only) S - Aluminum Painted, ASTM A9 Steel (K, M, P inlet sizes only) Set Pressure 000 - psig 000-00 psig Note 1. Viton is a registered trademark of DuPont Dow Elastomers. Facility Phone: 88-9-700 Tyco Valves & Controls www.kunklevalve.com Tyco Flow Control (TFC) provides the information herein in good faith but makes no representation as to its comprehensiveness or accuracy. This data sheet is intended only as a guide to TFC products and services. Individuals using this data sheet must exercise their independent judgment in evaluating product selection and determining product appropriateness for their particular purpose and system requirements. TFC MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT(S) TO WHICH THE INFORMATION REFERS. ACCORDINGLY, TFC WILL NOT BE RESPONSIBLE FOR DAMAGES (OF ANY KIND OR NATURE, INCLUDING INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES) RESULTING FROM THE USE OF OR RELIANCE UPON THIS INFORMATION. Patents and Patents Pending in the U.S. and foreign countries. Tyco reserves the right to change product designs and specifications without notice. Copyright 00 Tyco Flow Control. All rights reserved.