pressure relief valves
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![Wika 52033601 233.53.100 1500 psi 2nd scale kPa 1/2 NPT lower back moun | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_53_en_us_62600_d5bc7b19-3879-4db8-92aa-a2d1f159675c_medium.png?v=1720031045)
52033601 | 233.53.100 1500 psi 2nd scale kPa 1 / 2 NPT lower back moun | Wika
Brand: Wika
SKU: 52033601
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![Wika 52035301 233.53.063 6000 psi 2nd scale bar 1/4 NPT center back mou | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_53_en_us_62600_3268fe00-715b-4c07-a4f2-af6fb7099c96_medium.png?v=1720031044)
52035301 | 233.53.063 6000 psi 2nd scale bar 1 / 4 NPT center back mou | Wika
Brand: Wika
SKU: 52035301
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![Wika 52043703 213.53.4" 1500 psi 2nd scale bar 1/4 NPT lower back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_21X_53_en_us_62635_aa35cb70-f1a3-4a38-9707-d79ebc7538da_medium.png?v=1720031041)
52043703 | 213.53.4" 1500 psi 2nd scale bar 1 / 4 NPT lower back mount | Wika
Brand: Wika
SKU: 52043703
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![Wika 50803875 233.54.100 600 psi 2nd scale bar 1/2 NPT lower back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_a4d26921-dde6-405b-a90a-2cec6e397cb3_medium.png?v=1720031019)
50803875 | 233.54.100 600 psi 2nd scale bar 1 / 2 NPT lower back mount | Wika
Brand: Wika
SKU: 50803875
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![Wika 50900056 611.10.2.5" 0 mbar...300 mbar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_611_10_631_10_en_us_84884_fd7b74d4-11f2-4306-84f0-77d12d2e3498_medium.png?v=1720031014)
50900056 | 611.10.2.5" 0 mbar...300 mbar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50900056
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![Wika 50896598 213.53.4" 10000 psi 2nd scale bar 1/2 NPT lower back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_646a0f3c-3265-4f7b-a939-e73ea4767cec_medium.png?v=1720031014)
50896598 | 213.53.4" 10000 psi 2nd scale bar 1 / 2 NPT lower back mount | Wika
Brand: Wika
SKU: 50896598
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![Wika 50795821 HP-2-S ; 0...60000 psi; 4...20 mA, 2-W | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HP-2_medium.jpg?v=1720031011)
50795821 | HP-2-S ; 0...60000 psi; 4...20 mA, 2-W | Wika
Brand: Wika
SKU: 50795821
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![Wika 50761846 611.10.2.5" 0 inches of water...10 inches of water 1/4 NPT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_611_10_631_10_en_us_84884_ff278f94-6a03-4bfa-8c5d-a4a1f7fd418a_medium.png?v=1720030986)
50761846 | 611.10.2.5" 0 inches of water...10 inches of water 1 / 4 NPT | Wika
Brand: Wika
SKU: 50761846
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![Wika 50754831 611.10.2.5" 0 in.WC...15 in.WC 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_611_10_631_10_en_us_84884_4d7ecb8f-eb3c-4e92-8334-58483cd1a699_medium.png?v=1720030975)
50754831 | 611.10.2.5" 0 in.WC...15 in.WC 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50754831
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![Wika 50737058 111.12 2.0" 160 psi R 1/8-ISO7 (DIN2999) center back mou | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_951c695d-682a-4dd8-8fa6-2ac3dee6c349_medium.png?v=1720030971)
50737058 | 111.12 2.0" 160 psi R 1 / 8-ISO7 (DIN2999) center back mou | Wika
Brand: Wika
SKU: 50737058
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![Wika 50768468 233.53.100 160 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_53_en_us_62600_b8585bfa-7e7b-4ee6-bd1e-eff4d9860c17_medium.png?v=1720030973)
50768468 | 233.53.100 160 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50768468
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![Wika 50747665 233.53.063 30 psi 2nd scale bar 1/4 NPT center back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_e1ae3b5c-051e-4100-855d-9e4164888749_medium.png?v=1720030970)
50747665 | 233.53.063 30 psi 2nd scale bar 1 / 4 NPT center back mount | Wika
Brand: Wika
SKU: 50747665
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![Wika 50761871 611.10.2.5" 0 inches of water...10 inches of water 1/4 NPT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_a3bfc036-12ed-42a6-bc45-2920bda5f33b_medium.png?v=1720030968)
50761871 | 611.10.2.5" 0 inches of water...10 inches of water 1 / 4 NPT | Wika
Brand: Wika
SKU: 50761871
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![Wika 50690434 232.53.063 300 psi 2nd scale bar 1/4 NPT center back moun | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_cd8e221a-a05d-4f62-acf4-7a7710210d82_medium.png?v=1720030960)
50690434 | 232.53.063 300 psi 2nd scale bar 1 / 4 NPT center back moun | Wika
Brand: Wika
SKU: 50690434
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![Wika 50619357 213.53.4" 5000 psi 2nd scale kg/cm2 1/4 NPT lower back mou | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_21X_53_en_us_62635_b2fdc429-af51-4896-b08d-d1560d1af9a4_medium.png?v=1720030941)
50619357 | 213.53.4" 5000 psi 2nd scale kg / cm2 1 / 4 NPT lower back mou | Wika
Brand: Wika
SKU: 50619357
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![Wika 50670158 233.53.063 3000 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_53_en_us_62600_b174c16d-87fb-4c9a-bb3a-b38b1efcae3c_medium.png?v=1720030939)
50670158 | 233.53.063 3000 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50670158
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![Wika 50621858 232.53.063 400 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_53_en_us_62600_9fb8d236-def4-44c9-ae12-c7e86a365fd6_medium.png?v=1720030942)
50621858 | 232.53.063 400 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50621858
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![Wika 50612689 213.53.4" 300 psi 2nd scale bar 1/4 NPT lower back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_aadb823b-0304-4f12-b32f-26fff6cdba2a_medium.png?v=1720030940)
50612689 | 213.53.4" 300 psi 2nd scale bar 1 / 4 NPT lower back mount | Wika
Brand: Wika
SKU: 50612689
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![Wika 50678388 233.53.063 2000 psi 2nd scale bar 1/4 NPT center back mou | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_33626df5-3a7b-4a7a-b798-4122287a88c8_medium.png?v=1720030940)
50678388 | 233.53.063 2000 psi 2nd scale bar 1 / 4 NPT center back mou | Wika
Brand: Wika
SKU: 50678388
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![Wika 50646702 612.20.4" -30 in.WC...30 in.WC 1/2 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_612_20_de_de_48114_b6273cc1-3849-489b-8b59-1cd85327c228_medium.png?v=1720030933)
50646702 | 612.20.4" -30 in.WC...30 in.WC 1 / 2 NPT lower mount | Wika
Brand: Wika
SKU: 50646702
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![Wika 50670085 213.53.4" 200 psi 2nd scale bar 1/2 NPT lower back mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_21X_53_en_us_62635_720035b3-fddb-40bc-ae1e-4ea5b9093d9b_medium.png?v=1720030920)
50670085 | 213.53.4" 200 psi 2nd scale bar 1 / 2 NPT lower back mount | Wika
Brand: Wika
SKU: 50670085
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![Wika 50586025 232.54.100 600 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_54_en_us_62598_1ae5da47-e6ee-4567-a272-27e8fcb31d06_medium.png?v=1720030917)
50586025 | 232.54.100 600 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50586025
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![Wika 50592327 233.54.063 800 psi 2nd scale bar 1/4 NPT center back | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wika_logo_2f7e34d0-8af4-4ab6-88aa-b196f3fc1352_medium.png?v=1720030915)
50592327 | 233.54.063 800 psi 2nd scale bar 1 / 4 NPT center back | Wika
Brand: Wika
SKU: 50592327
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![Wika 50578201 232.53.063 300 psi 2nd scale bar 1/4 NPT lower mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PIC_PR_23X_53_en_us_62600_0ab84da1-6334-448e-a88a-bd6074716f32_medium.png?v=1720030910)
50578201 | 232.53.063 300 psi 2nd scale bar 1 / 4 NPT lower mount | Wika
Brand: Wika
SKU: 50578201
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