{"id":29178,"date":"2026-05-05T14:34:10","date_gmt":"2026-05-05T12:34:10","guid":{"rendered":"https:\/\/schuhmacher-tech.de\/product\/domin-s12-pro-two-stage-servo-valve\/"},"modified":"2026-10-09T09:55:49","modified_gmt":"2026-10-09T07:55:49","slug":"domin-s12-pro-two-stage-servo-valve","status":"publish","type":"product","link":"https:\/\/schuhmacher-tech.de\/en\/product\/domin-s12-pro-two-stage-servo-valve\/","title":{"rendered":"Domin S12 Pro \u2013 two-stage servo valve"},"content":{"rendered":"<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\">The Domin S12 Pro is a high-performance, two-stage servo valve in NG16 size, designed for applications where precision and stability have a direct impact on safety, throughput and operating costs. Built on proven Domin valve technology as the pilot stage, the S12 Pro delivers stable, responsive control across the entire operating range and maintains its integrity even under the most demanding conditions. This makes it ideal for systems where instability cannot be tolerated \u2013 such as highly dynamic presses, test benches, steel and rolling mill drives, injection moulding machines with high repeatability requirements, and heavy-duty industrial automation with high flow rate demands.  <\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Technical highlights<\/strong><\/p>\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\">\n<li class=\"whitespace-normal break-words pl-2\">Highly dynamic two-stage servo valve with direct-drive pilot control, size NG16<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Integrated on-board electronics with slide position feedback \u2013 no external amplifier required<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Response time less than 6.5 ms, frequency response above 130 Hz (\u20133 dB gain) and above 100 Hz (\u201390\u00b0 phase, \u00b125 per cent signal)<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Hysteresis less than 0.2 per cent, threshold less than 0.1 per cent, zero-point drift less than 1 per cent<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Nominal flow rate 250 to 580 l\/min (rated at 35 bar \u0394P per control edge), maximum flow rate up to 1000 l\/min <\/li>\n<li class=\"whitespace-normal break-words pl-2\">Maximum operating pressure 350 bar (P, A, B, X) \/ 250 bar (Y, T)<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Pilot valve leakage less than 0.8 l\/min, main stage leakage less than 1.0 l\/min (at 100 bar)<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Power consumption less than 5 W, supply voltage 22\u201330 V DC, peak current 4.5 A<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Vibration resistance 10 g, shock resistance 15 g, protection rating IP65<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Weight under 7 kg, mounting interface ISO 4401-07-07 (ports enlarged to 20 mm), tightening torque 40 Nm (M10) or 8 Nm (M6)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Order code:<\/strong> S12 Pro \u2013 [1] \u2013 [2] \u2013 [3] \u2013 [4] \u2013 [5] \u2013 [6] \u2013 [7] \u2013 [8] \u2013 [Custom ID]<\/p>\n<p><strong>Example<\/strong>: S12 Pro \u2013 400 \u2013 A \u2013 A \u2013 C \u2013 E \u2013 N \u2013 R \u2013 N<br \/>\n= 400 l\/min \u00b7 Axis (linearised) \u00b7 \u00b110 V \u00b7 Passive centre position \u00b7 6+PE circular connector \u00b7 no enable \u00b7 standard oil \u00b7 nitrile<\/p>\n<table>\n<thead>\n<tr>\n<th>Position<\/th>\n<th>Description<\/th>\n<th>Options<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>[1]<\/td>\n<td>Nominal flow rate<\/td>\n<td>250 to 580 l\/min (any value, rated at 35 bar \u0394P per control edge) \u2013 suffix R for reversed A\/B connections (e.g. 580R)<\/td>\n<\/tr>\n<tr>\n<td>[2]<\/td>\n<td>Valve overlap &#038; flow characteristic curve<\/td>\n<td><strong>A<\/strong> \u2013 Axis (1 per cent overlap, standard flow map: linear, 100 per cent gain across the entire range)<br \/>\n<strong>B<\/strong> \u2013 Float (5 per cent over-coverage P, 5 per cent under-coverage T, standard flow map: deadband)<br \/>\n<strong>D<\/strong> \u2013 Blocked (5 per cent overlap, all ports blocked at the zero point, default flow map: deadband)<br \/>\n<strong>X <\/strong>\u2013 Special version available on request<br \/>\nOptionally, a second code can specify a different flow map: <strong>A <\/strong>\u2013 Linear, <strong>D <\/strong>\u2013 Deadband (0% gain within the \u00b110% range), <strong>O <\/strong>\u2013 Gradual (50% gain within the \u00b13% range). Example: AD = Axis slide valve with deadband characteristic curve. <\/td>\n<\/tr>\n<tr>\n<td>[3]<\/td>\n<td>Control signal (I\/O)<\/td>\n<td><strong>A<\/strong> \u2013 \u00b110 V (input impedance 200 k\u03a9, output \u00b110.5 V)<br \/>\n<strong>B <\/strong>\u2013 \u00b120 mA (input impedance 402 \u03a9, output \u00b121 mA, load impedance 600 \u03a9)<br \/>\n<strong>C<\/strong> \u2013 4 \u2013 20 mA (402 \u03a9, output 3.8 \u2013 21 mA; input &lt; 2 mA deactivates the motor drive)<br \/>\n<strong>F<\/strong> \u2013 \u00b110 mA (402 \u03a9, output \u00b110.5 mA)<br \/>\n<strong>G <\/strong>\u2013 \u00b150 mA (200 \u03a9, input only; standard output as per Mode A)<br \/>\n<strong>X <\/strong>\u2013 Special version available on request<\/td>\n<\/tr>\n<tr>\n<td>[4]<\/td>\n<td>Power-off position (power-off behaviour)<\/td>\n<td><strong>A<\/strong> \u2013 Axis (leakage flow across all control edges)<br \/>\n<strong>B<\/strong> \u2013 Float (P blocked, A, B and T connected)<br \/>\n<strong>C<\/strong> \u2013 Passive (the spool returns passively to the centre position under typical flow conditions)<br \/>\n<strong>D<\/strong> \u2013 Blocked (all ports blocked)<br \/>\n<strong>PA<\/strong> \u2013 A Bias (P connected to A, B connected to T)<br \/>\n<strong>PB<\/strong> \u2013 B Bias (P connected to B, A connected to T)<br \/>\n<strong>X <\/strong>\u2013 Special version available on request<\/td>\n<\/tr>\n<tr>\n<td>[5]<\/td>\n<td>Electrical connector<\/td>\n<td><strong>E <\/strong>\u2013 6+PE circular connector, EN 175201-804 \/ MIL 5015, housing size 14 (A = +24 V \/ B = 0 V \/ C = 0 V reference or enable output \/ D = input+ \/ E = input\u2212 \/ F = output signal \/ G = earth)<br \/>\n<strong>E4 <\/strong>\u2013 4-pin round plug, EN 175201-804 \/ MIL 5015, housing size 14 (A = +24 V \/ B = Input+ \/ C = Input\u2212 \/ D = 0 V)<br \/>\n<strong>X <\/strong>\u2013 Special version available on request<\/td>\n<\/tr>\n<tr>\n<td>[6]<\/td>\n<td>Enable function<\/td>\n<td><strong>N<\/strong> \u2013 No enable function<br \/>\n<strong>Y<\/strong> \u2013 Enable mode via voltage input (Drive ON: 9\u201330 V \/ Drive OFF: 0\u20135 V \/ input impedance typ. 15 k\u03a9; available only with connector E)<br \/>\n<strong>X<\/strong> \u2013 Special version available on request<\/td>\n<\/tr>\n<tr>\n<td>[7]<\/td>\n<td>Hydraulic fluid<\/td>\n<td><strong>R <\/strong>\u2013 Hydraulic oil in accordance with DIN 51524, filtered to ISO 4406 18\/16\/13 (water-free synthetic fluids available on request)<br \/>\n<strong>X <\/strong>\u2013 Special version available on request<\/td>\n<\/tr>\n<tr>\n<td>[8]<\/td>\n<td>Sealing material<\/td>\n<td><strong>N<\/strong> \u2013 Nitrile NBR (Shore 90) \u2013 standard for mineral oils<br \/>\n<strong>V <\/strong>\u2013 Viton FKM (Shore 85) \u2013 increased resistance to high temperatures and chemicals<br \/>\n<strong>X <\/strong>\u2013 Special version available on request<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Data sheet: https:\/\/domin.com\/datasheet\/s12-pro<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Domin S12 Pro is a high-performance, two-stage servo valve in NG16 size, designed for applications where precision and stability have a direct impact on safety, throughput and operating costs. Built on proven Domin valve technology as the pilot stage, the S12 Pro delivers stable, responsive control across the entire operating range and maintains its&hellip;<\/p>\n","protected":false},"featured_media":28933,"template":"","meta":[],"product_brand":[],"product_cat":[415,418,414],"product_tag":[],"class_list":["post-29178","product","type-product","status-publish","has-post-thumbnail","product_cat-domin-proportional-valve","product_cat-hydraulic-valves","product_cat-proportional-valves","description-off","first","outofstock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/product\/29178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/media\/28933"}],"wp:attachment":[{"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/media?parent=29178"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/product_brand?post=29178"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/product_cat?post=29178"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/schuhmacher-tech.de\/en\/wp-json\/wp\/v2\/product_tag?post=29178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}