Siemens 0.5" - 3 way Valve size
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![Siemens 245-00534 Zone valve, 3-way, 1/2", 4.0 Cv, SWT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_b535697f-5750-4b44-a1d8-38f27820f00e_medium.jpg?v=1723872707)
245-00534 | Zone valve, 3-way, 1 / 2", 4.0 Cv, SWT w / 24Vac 0-10Vdc NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 245-00534
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![Siemens 245-00533 Zone valve, 3-way, 1", 7.0 Cv, SWT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_7231f771-38b0-4719-ac6f-c736aaa8b8c8_medium.jpg?v=1723872690)
245-00533 | Zone valve, 3-way, 1", 7.0 Cv, SWT w / 24Vac 0-10Vdc NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 245-00533
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![Siemens 245-00531 Zone valve, 3-way, 1/2", 2.5 Cv, SWT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_medium.jpg?v=1723872637)
245-00531 | Zone valve, 3-way, 1 / 2", 2.5 Cv, SWT w / 24Vac 0-10Vdc NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 245-00531
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![Siemens 245-00530 Zone valve, 3-way, 1/2", 1.0 Cv, SWT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_9ffa95d8-c4ad-4800-8655-878bcb9144a5_medium.jpg?v=1723872691)
245-00530 | Zone valve, 3-way, 1 / 2", 1.0 Cv, SWT w / 24Vac 0-10Vdc NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 245-00530
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![Siemens 245-00234 Zone valve, 3-way, 1/2", 4.0 Cv, NPT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44686_en_fb5853e8-6600-4302-8be6-67e4708e0b25_medium.jpg?v=1723872695)
245-00234 | Zone valve, 3-way, 1 / 2", 4.0 Cv, NPT w / 24Vac 0-10Vdc NSR actuator | Siemens
Brand: Siemens
SKU: 245-00234
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![Siemens 245-00231 Zone valve, 3-way, 1/2", 2.5 Cv, NPT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_9bcba594-9388-43a4-a80e-a555f7611805_medium.jpg?v=1723872687)
245-00231 | Zone valve, 3-way, 1 / 2", 2.5 Cv, NPT w / 24Vac 0-10Vdc NSR actuator | Siemens
Brand: Siemens
SKU: 245-00231
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![Siemens 245-00230 Zone valve, 3-way, 1/2", 1.0 Cv, NPT w/ 24Vac 0-10Vdc NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44686_en_96953e2e-01e8-4c06-a830-e2328fcf0e75_medium.jpg?v=1723872686)
245-00230 | Zone valve, 3-way, 1 / 2", 1.0 Cv, NPT w / 24Vac 0-10Vdc NSR actuator | Siemens
Brand: Siemens
SKU: 245-00230
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![Siemens 244-00534 Zone valve, 3-way, 1/2", 4.0 Cv, SWT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_e12d35ce-217e-42d9-8ac0-f9f217bf17cc_medium.jpg?v=1723872725)
244-00534 | Zone valve, 3-way, 1 / 2", 4.0 Cv, SWT w / 24V floating NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 244-00534
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![Siemens 244-00533 Zone valve, 3-way, 1", 7.0 Cv, SWT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_958d2c83-d31e-4f33-b1b1-de79cd8cbaeb_medium.jpg?v=1723872683)
244-00533 | Zone valve, 3-way, 1", 7.0 Cv, SWT w / 24V floating NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 244-00533
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![Siemens 244-00531 Zone valve, 3-way, 1/2", 2.5 Cv, SWT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_1d52661d-5397-4899-8d08-f23531f410ac_medium.jpg?v=1723872697)
244-00531 | Zone valve, 3-way, 1 / 2", 2.5 Cv, SWT w / 24V floating NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 244-00531
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![Siemens 244-00530 Zone valve, 3-way, 1/2", 1.0 Cv, SWT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44689_en_b0df9ae3-52e0-4e46-9aee-de83bb368645_medium.jpg?v=1723872694)
244-00530 | Zone valve, 3-way, 1 / 2", 1.0 Cv, SWT w / 24V floating NSR actuator | Siemens (OBSOLETE)
Brand: Siemens
SKU: 244-00530
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![Siemens 244-00234 Zone valve, 3-way, 1/2", 4.0 Cv, NPT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44686_en_db6a10c3-924c-41fc-b27f-570fda0214d0_medium.jpg?v=1723872693)
244-00234 | Zone valve, 3-way, 1 / 2", 4.0 Cv, NPT w / 24V floating NSR actuator | Siemens
Brand: Siemens
SKU: 244-00234
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![Siemens 244-00231 Zone valve, 3-way, 1/2", 2.5 Cv, NPT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44686_en_88b214b6-3917-4a08-9e5b-ad3bbdb35be7_medium.jpg?v=1723872687)
244-00231 | Zone valve, 3-way, 1 / 2", 2.5 Cv, NPT w / 24V floating NSR actuator | Siemens
Brand: Siemens
SKU: 244-00231
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![Siemens 244-00230 Zone valve, 3-way, 1/2", 1.0 Cv, NPT w/ 24V floating NSR actuator | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44686_en_e13d0c93-48cd-4c5d-8bdf-591dbf6c45f3_medium.jpg?v=1723872680)
244-00230 | Zone valve, 3-way, 1 / 2", 1.0 Cv, NPT w / 24V floating NSR actuator | Siemens
Brand: Siemens
SKU: 244-00230
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![Siemens 243-00231 Zone valve, 3-way, 1/2", 2.5 Cv, NPT w/ 24V 2-position SR actuator, fails AB-A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44685_en_f11c7461-e08f-47d3-b463-e0008db5bdcd_medium.jpg?v=1723872683)
243-00231 | Zone valve, 3-way, 1 / 2", 2.5 Cv, NPT w / 24V 2-position SR actuator, fails AB-A | Siemens
Brand: Siemens
SKU: 243-00231
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![Siemens 243-00230 Zone valve, 3-way, 1/2", 1.0 Cv, NPT w/ 24V 2-position SR actuator, fails AB-A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44685_en_fc3eb0e3-4ab4-43de-bbbc-4f35b90a1d9e_medium.jpg?v=1723872660)
243-00230 | Zone valve, 3-way, 1 / 2", 1.0 Cv, NPT w / 24V 2-position SR actuator, fails AB-A | Siemens
Brand: Siemens
SKU: 243-00230
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![Siemens 242-00231 Zone valve, 3-way, 1/2", 2.5 Cv, NPT w/ 24V 2-position SR actuator, fails AB-B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44685_en_c8e1cad9-11ce-40dd-8ca3-be5a311206ef_medium.jpg?v=1723872631)
242-00231 | Zone valve, 3-way, 1 / 2", 2.5 Cv, NPT w / 24V 2-position SR actuator, fails AB-B | Siemens
Brand: Siemens
SKU: 242-00231
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