pressure relief valves
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![Wika 52861363 131.11.1.5" 160 psi 1/8" NPT center back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/131.11_8f2a246a-c39e-4ec4-a876-3a92877f6683_medium.jpg?v=1720031645)
52861363 | 131.11.1.5" 160 psi 1 / 8" NPT center back mount | Wika
Brand: Wika
SKU: 52861363
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![Wika 52867687 213.53.2.5" 160 bar 2nd scale psi 1/4 NPT back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_4ec466b0-4c5a-437c-a5d0-2f93043270b1_medium.png?v=1720031646)
52867687 | 213.53.2.5" 160 bar 2nd scale psi 1 / 4 NPT back mount | Wika
Brand: Wika
SKU: 52867687
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![Wika 52859569 131.11.1.5" 60 psi 1/8" NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/131.11_0ca18d2d-0d39-4cca-81ba-f9f9d2b9d864_medium.jpg?v=1720031641)
52859569 | 131.11.1.5" 60 psi 1 / 8" NPT lower mount | Wika
Brand: Wika
SKU: 52859569
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![Wika 52861356 213.53.4" 1000 psi 2nd scale bar 1/2 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_041edf46-ad11-4ce8-80ef-3e6c8eaabf83_medium.png?v=1720031639)
52861356 | 213.53.4" 1000 psi 2nd scale bar 1 / 2 NPT lower mount | Wika
Brand: Wika
SKU: 52861356
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![Wika 52859749 213.53.2.5" 5000 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_a733e9f1-4862-46ae-b158-601cbbaafd32_medium.png?v=1720031637)
52859749 | 213.53.2.5" 5000 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 52859749
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![Wika 52860063 213.53.4" 60 psi 2nd scale bar 1/2 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_cbf06cac-f444-4383-83b6-35a1a94fd09f_medium.png?v=1720031635)
52860063 | 213.53.4" 60 psi 2nd scale bar 1 / 2 NPT lower mount | Wika
Brand: Wika
SKU: 52860063
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![Wika 52858988 213.53.2.5" 5000 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_0807ed1e-4360-4401-887a-db87bbd310bd_medium.png?v=1720031632)
52858988 | 213.53.2.5" 5000 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 52858988
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![Wika 52860055 233.50.4" 250 bar 2nd scale psi G1/2B lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_faa688e3-8775-4b2c-80ba-c9c82e488562_medium.png?v=1720031632)
52860055 | 233.50.4" 250 bar 2nd scale psi G1 / 2B lower mount | Wika
Brand: Wika
SKU: 52860055
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![Wika 52857781 232.53.100 -30 inHg/+100 psi 1/2 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_4ce98961-0014-446d-a39b-3fa52927daeb_medium.png?v=1720031629)
52857781 | 232.53.100 -30 inHg / +100 psi 1 / 2 NPT lower mount | Wika
Brand: Wika
SKU: 52857781
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![Wika 52855779 612.20.4" 0 in.WC...30 in.WC 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_73bf6924-cc56-4e47-bdff-3aab619c88d0_medium.png?v=1720031626)
52855779 | 612.20.4" 0 in.WC...30 in.WC 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 52855779
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![Wika 52851477 262.30.2.5" 160 psi 2nd scale bar 1/4 NPT lower back mou | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_6d0f4183-c4fa-4350-9def-a2999601ea40_medium.png?v=1720031623)
52851477 | 262.30.2.5" 160 psi 2nd scale bar 1 / 4 NPT lower back mou | Wika
Brand: Wika
SKU: 52851477
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![Wika 52855107 213.53.2.5" 5000 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_50fa545e-638c-4d91-b1dc-50098b3611cb_medium.png?v=1720031623)
52855107 | 213.53.2.5" 5000 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 52855107
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![Wika 52857685 212.53.2.5" 3000 psi 2nd scale bar 1/4 NPT back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_e7ddc606-f33b-45d8-a50a-753ea6b6e14d_medium.png?v=1720031619)
52857685 | 212.53.2.5" 3000 psi 2nd scale bar 1 / 4 NPT back mount | Wika
Brand: Wika
SKU: 52857685
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![Wika 52856361 732.51.4" (approx. 16 mbar) 0/6 inH2O 2 x 1/4 NPT Female | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_32b8f0ba-fc6b-4ff8-90eb-0d866e3bee8d_medium.png?v=1720031602)
52856361 | 732.51.4" (approx. 16 mbar) 0 / 6 inH2O 2 x 1 / 4 NPT Female | Wika
Brand: Wika
SKU: 52856361
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![Wika 52850214 212.53.4" 1000 psi 2nd scale kg/cm2 1/4 NPT lower back mou | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_943d8c5e-75e0-4baf-a8bf-f040b7bea63e_medium.png?v=1720031591)
52850214 | 212.53.4" 1000 psi 2nd scale kg / cm2 1 / 4 NPT lower back mou | Wika
Brand: Wika
SKU: 52850214
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![Wika 52850919 232.34.4.5" (approx. 70 bar) 1000 PSI/LBS 1/2 NPT lower mo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_f398edc6-4df6-41a4-a181-6453f5cf5247_medium.png?v=1720031592)
52850919 | 232.34.4.5" (approx. 70 bar) 1000 PSI / LBS 1 / 2 NPT lower mo | Wika
Brand: Wika
SKU: 52850919
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![Wika 52850729 212.53.2.5" 25 bar 2nd scale psi 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_10173b08-bc3b-44a3-b803-6fdf05d8c31b_medium.png?v=1720031583)
52850729 | 212.53.2.5" 25 bar 2nd scale psi 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 52850729
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![Wika 52849722 233.50.2.5" 160 psi 2nd scale MPa 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_232_50_233_50_de_de_48101_adb92e58-3cde-4d56-b76c-11c8d93e293e_medium.png?v=1720031584)
52849722 | 233.50.2.5" 160 psi 2nd scale MPa 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 52849722
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![Wika 52846589 232.53.100 150 psi 2nd scale bar 1/2 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_002f46a1-a825-4883-bbf1-addb793378c0_medium.png?v=1720031578)
52846589 | 232.53.100 150 psi 2nd scale bar 1 / 2 NPT lower mount | Wika
Brand: Wika
SKU: 52846589
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![Wika 52847148 232.53.100 -100/+200 kPa 2nd scale psi 1/4 NPT lower back | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_94f84f64-841f-4eb3-a435-f21af1865bb5_medium.png?v=1720031570)
52847148 | 232.53.100 -100 / +200 kPa 2nd scale psi 1 / 4 NPT lower back | Wika
Brand: Wika
SKU: 52847148
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![Wika 52842263 233.53.100 6 MPa 2nd scale bar 1/2 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_6b26f6af-d6d2-4ad7-82fd-e466dd496b34_medium.png?v=1720031564)
52842263 | 233.53.100 6 MPa 2nd scale bar 1 / 2 NPT lower mount | Wika
Brand: Wika
SKU: 52842263
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![Wika 52837266 232.36.4" 10 psi overpressure safe to 35 psi 1/2 NPT lowe | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_af49d366-c8aa-48d4-90b7-f04797e98288_medium.png?v=1720031560)
52837266 | 232.36.4" 10 psi overpressure safe to 35 psi 1 / 2 NPT lowe | Wika (OBSOLETE)
Brand: Wika
SKU: 52837266
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![Wika 52844648 213.53DW 2.5 60PSI 1/4 L NSF PB-FREE FLEX WDW 100%FILL IP66 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_b21da6b3-082c-49e3-b608-5a37c0ac449c_medium.png?v=1720031560)
52844648 | 213.53DW 2.5 60PSI 1 / 4 L NSF PB-FREE FLEX WDW 100%FILL IP66 | Wika
Brand: Wika
SKU: 52844648
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![Wika 52843683 131.11.2" 160 psi 2nd scale kPa 1/8" NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/131.11_57385e66-359e-490a-b5b0-2b25969ccf11_medium.jpg?v=1720031554)
52843683 | 131.11.2" 160 psi 2nd scale kPa 1 / 8" NPT lower mount | Wika
Brand: Wika
SKU: 52843683
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