Siemens Modulating Control input
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![Siemens 173C-10311 2W 3/4", 25Cv ball valve assy, chrome-plat brass ball, brass stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_0f4f4849-a2a5-47ae-9905-1ec0da4421ed_medium.png?v=1705524562)
173C-10311 | 2W 3 / 4", 25Cv ball valve assy, chrome-plat brass ball, brass stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10311
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![Siemens 173C-10310S 2W 3/4", 16Cv ball valve assy, stainless steel ball, stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_ee630593-f555-4e43-be17-2dc603e3e489_medium.png?v=1705524531)
173C-10310S | 2W 3 / 4", 16Cv ball valve assy, stainless steel ball, stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10310S
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![Siemens 173C-10310 2W 3/4", 16Cv ball valve assy, chrome-plat brass ball, brass stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_3677acc0-c3c6-4aaa-9272-52a03852c8cb_medium.png?v=1705524540)
173C-10310 | 2W 3 / 4", 16Cv ball valve assy, chrome-plat brass ball, brass stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10310
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![Siemens 173C-10309S 2W 3/4", 10Cv ball valve assy, stainless steel ball, stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_b4a130a4-c7dc-4bf7-b231-e59692de3e1b_medium.png?v=1705524556)
173C-10309S | 2W 3 / 4", 10Cv ball valve assy, stainless steel ball, stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10309S
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![Siemens 173C-10309 2W 3/4", 10Cv ball valve assy, chrome-plat brass ball, brass stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_0a971ee7-98f1-4c10-a6ff-f1370ef94e86_medium.png?v=1705524568)
173C-10309 | 2W 3 / 4", 10Cv ball valve assy, chrome-plat brass ball, brass stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10309
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![Siemens 173C-10308S 2W 3/4", 6.3Cv ball valve assy, stainless steel ball, stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_3b0b9c9d-1808-41f9-8ede-7332a366f67f_medium.png?v=1705524544)
173C-10308S | 2W 3 / 4", 6.3Cv ball valve assy, stainless steel ball, stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10308S
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![Siemens 173C-10307S 2W 1/2", 10Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_796a17e3-3e98-415c-876f-afa8dd3473f1_medium.png?v=1705524556)
173C-10307S | 2W 1 / 2", 10Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10307S
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![Siemens 173C-10306S 2W 1/2", 6.3Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_f0e06b5f-15b7-4304-b9be-0abfb9f33d42_medium.png?v=1705524561)
173C-10306S | 2W 1 / 2", 6.3Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10306S
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![Siemens 173C-10305S 2W 1/2", 4Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_84be1422-6ba8-4f3f-9658-2aa600ca4782_medium.png?v=1705524547)
173C-10305S | 2W 1 / 2", 4Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10305S
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![Siemens 173C-10304S 2W 1/2", 2.5Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_d779dcb6-7e4a-47bf-a55f-6df0014e823c_medium.png?v=1705524554)
173C-10304S | 2W 1 / 2", 2.5Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10304S
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![Siemens 173C-10304 2W 1/2", 2.5Cv ball valve assy, chrm-plat brass ball & brass stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_652c96ad-131d-42cf-a603-a6977c2ef1a9_medium.png?v=1705524554)
173C-10304 | 2W 1 / 2", 2.5Cv ball valve assy, chrm-plat brass ball & brass stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10304
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![Siemens 173C-10303S 2W 1/2", 1.6Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_5c5fadaf-0d68-416b-a67d-39909c08ebff_medium.png?v=1705524551)
173C-10303S | 2W 1 / 2", 1.6Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10303S
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![Siemens 173C-10303 2W 1/2", 1.6Cv ball valve assy, chrm-plat brass ball & brass stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_8a9f7521-8998-46cb-a255-122061d8b467_medium.png?v=1705524530)
173C-10303 | 2W 1 / 2", 1.6Cv ball valve assy, chrm-plat brass ball & brass stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10303
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![Siemens 173C-10302S 2W 1/2", 1Cv ball valve assembly, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_89895904-69d8-401a-a052-ba6edb4b5393_medium.png?v=1705524564)
173C-10302S | 2W 1 / 2", 1Cv ball valve assembly, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10302S
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![Siemens 173C-10302 2W 1/2", 1Cv ball valve assy, chrome-plat brass ball & brass stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_47e11a2b-5ec5-4a25-b747-cdd66e6f761f_medium.png?v=1705524544)
173C-10302 | 2W 1 / 2", 1Cv ball valve assy, chrome-plat brass ball & brass stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10302
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![Siemens 173C-10301S 2W 1/2", 0.63Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_56dd86b9-1b35-4f95-a205-cbd087c5b8ef_medium.png?v=1705524551)
173C-10301S | 2W 1 / 2", 0.63Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10301S
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![Siemens 173C-10300S 2W 1/2", 0.4Cv ball valve assembly, stainless steel ball & stem, 0-10V NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_da31cda2-5a5d-478b-9fc5-69bbc5b3e31d_medium.png?v=1705524560)
173C-10300S | 2W 1 / 2", 0.4Cv ball valve assembly, stainless steel ball & stem, 0-10V NSR | Siemens (OBSOLETE)
Brand: Siemens
SKU: 173C-10300S
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![Siemens 172K-10311 2W 3/4", 25Cv ball valve assy, chrome-plat brass ball, brass stem, 2-10 V NC SR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/172K-10311_medium.jpg?v=1692718845)
172K-10311 | 2W 3 / 4", 25Cv ball valve assy, chrome-plat brass ball, brass stem, 2-10 V NC SR | Siemens
Brand: Siemens
SKU: 172K-10311
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