Regulating Valves

Industrial Regulating Valves | Steam, Water & Air Control | Lian Giti Namdar
Industrial Control Valves

Industrial Regulating Valves

Regulating valves are designed to control flow, pressure, and temperature for industrial utilities and process media. Typical applications include cold & hot water, air and neutral gases, and steam. This page covers manual regulating/shut-off valves and several families of actuator-driven regulating valves (2-way and 3-way).

Application

Industrial regulating valves are intended for different media applications such as cold and hot water, air and neutral gases, and steam. Depending on the required control performance and capacity, selection can range from robust manual valves to actuator-driven modulating valves with positioners.

Typical uses

  • Steam distribution control and utility regulation
  • Water balancing, throttling, and shut-off duties
  • Air / neutral gas control and isolation
  • Mixing or diverting services using 3-port valves

How to select

  • Choose 2-port for throttling / control in-line
  • Choose 3-port for mixing or diverting (flow management)
  • Confirm PN class, temperature range, and connection standard (DIN / ANSI)
  • Use positioners for accurate modulation and feedback indication

Valve families in this range

Below is a categorized overview. Scroll further down for the detailed ordering tables with sizes, Kv/Kvs, and part numbers.

TA STA-D / STA-F (Manual)

Manual regulating & shut-off valves with metering nipples. Threaded Ametal bodies for DN10–50 and PN16 flanged cast iron for DN65–150.

ManualMeasuring PointsWater / HVAC

Type 3241 (2-port)

2-port regulating valve family with spring return (open/closed) options, soft/hard seat, and DIN or ANSI flange versions.

2-PortDIN / ANSIPN16 / PN40

Type 3244 (3-port divert)

3-port divert valve with spring return to port A or B. Designed for DN65–150 with defined flow direction and Kv characteristics.

3-PortDivertPN16

Type 3321 (2-port + positioner)

2-port regulating valves with spring return options, soft/hard seat, DIN or ANSI, and compatibility with positioner 3725 (display).

2-Port3725 Positioner-10…220°C

Type 3323 (3-port mixing)

3-port mixing valves with spring return to port A or B. DIN flanged PN16 cast iron body, with 3725 positioner option.

3-PortMixingPN16

8802YG / 8802GB / 8802GD

Stainless-steel control valves: 8802YG (angle seat) and 8802GB/8802GD (globe). Spring return open/closed, hard seat, welded/threaded variants.

Stainless SteelAngle / GlobeControl Units

Need help selecting the right regulating valve?

Share your media (steam/water/air), inlet/outlet pressure, temperature, connection standard (DIN/ANSI), required flow capacity (Kv/Kvs), and control signal. We’ll propose the correct family and configuration.

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Technical tables & ordering data

Manual regulating & shut-off valves — TA STA-D / STA-F

DN10–50 Ametal threaded connection and DN65–150 cast iron PN16 flange connection. Seat/spindle seal EPDM, handwheel polyamide, temperature range min -10°C (-20°C for DN10–50) up to max 120°C. Metering nipples / measuring points included.

Description Denomination DN Kv Thread / Conn. L Part No.
TA-STAD — With measuring points
Body: Ametal (gun metal) · Seal: EPDM · PN20 · G threads
TA-STAD Man DN10 G3/8 10 1.36 G 3/8 73 90529-2147
TA-STAD — With measuring points TA-STAD Man DN15 G1/2 15 2.56 G 1/2 84 90529-2148
TA-STAD — With measuring points TA-STAD Man DN20 G3/4 20 5.39 G 3/4 94 90529-2149
TA-STAD — With measuring points TA-STAD Man DN25 G1 25 8.59 G 1 105 90529-2150
TA-STAD — With measuring points TA-STAD Man DN32 G1 1/4 32 14.2 G 1 1/4 121 90529-2151
TA-STAD — With measuring points TA-STAD Man DN40 G1 1/2 40 19.2 G 1 1/2 126 90529-2152
TA-STAD — With measuring points TA-STAD Man DN50 G2 50 32.3 G 2 155 90529-2153
Description Denomination DN Kv / Kvs Connection Part No.
TA-STAF — With measuring points
Body: Cast iron (GG 25) · Seal: EPDM · PN16 · PN16 flanges
TA-STAF Kvs 85.00 m³/h Fl. DN65 EPDM Man 65 85 Flanged PN16 70000202125
TA-STAF — With measuring points TA-STAF Kvs 123.00 m³/h Fl. DN80 EPDM 80 123 Flanged PN16 70000201472
TA-STAF — With measuring points TA-STAF Kvs 185.00 m³/h Fl. DN100 EPDM 100 185 Flanged PN16 70000201354
TA-STAF — With measuring points TA-STAF Kvs 294.00 m³/h Fl. DN125 EPDM Man 125 294 Flanged PN16 70000202126
TA-STAF — With measuring points TA-STAF Kvs 400.00 m³/h Fl. DN150 EPDM Man 150 400 Flanged PN16 70000202127
* TA series: intended for manual regulating and shut-off; includes measuring points (metering nipples) for balancing and commissioning.

Regulating valves type 3241 — 2 ports

Features & benefits: 2-port regulating valve; spring return closed or open available; soft seat or hard seat; cast iron or cast steel body. Media temperature -10 to 220°C. Pressure class PN16 (cast iron) / PN40 (cast steel). DIN or ANSI flanges available.

Description Denomination Kv / Kvs Notes Part No.
3241/3277/3730-1 NC SS/SS
Normally closed · Incl. air reducing station · DIN PN40 · Cast steel GS-C25 · Actuator 3277 · Positioner 3730-1 (4–20 mA)
Valve, 3241-7//3730-1 DN15 Kvs 4.00 m³/h 4 DIN PN40 90533-1089
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN20 Kvs 6.30 m³/h 6.3 DIN PN40 90533-1148
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN25 Kvs 10.00 m³/h 10 DIN PN40 90533-1149
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN32 Kvs 16.00 m³/h 16 DIN PN40 90533-1151
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN40 Kvs 25.00 m³/h 25 DIN PN40 90533-1152
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN50 Kvs 40.00 m³/h 40 DIN PN40 90533-1090
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN65 Kvs 60.00 m³/h 60 DIN PN40 90533-1091
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN80 Kvs 80.00 m³/h 80 DIN PN40 90533-1092
3241/3277/3730-1 NC SS/SS Valve, 3241-7//3730-1 DN100 Kvs 160.00 m³/h 160 DIN PN40 90533-1153

Regulating valves type 3244 — 3 ports divert

Features & benefits: divert valve with 3 ports; spring return closed A or B port available; flow direction DN65–150: AB→A (max Kv) and AB→B (reduced Kv). Cast iron body; media -10 to 220°C; PN16; DIN flanges.

Description Denomination Kv / Kvs Notes Part No.
3244/3277/3730-1 NC/A
3-way divert · NC port A (side) · Incl. air reducing station · DIN PN16 · EN-JL1040 · Actuator 3277 · Positioner 3730-1 (4–20 mA)
Valve, 3244-7//3730-1 DN65 Kvs 40.00 m³/h 40 DIN PN16 90533-1108
3244/3277/3730-1 NC/A Valve, 3244-7//3730-1 DN80 Kvs 60.00 m³/h 60 DIN PN16 90533-1109
3244/3277/3730-1 NC/A Valve, 3244-7//3730-1 DN100 Kvs 100.00 m³/h 100 DIN PN16 90533-1166
3244/3277/3730-1 NC/A Valve, 3244-7//3730-1 DN125 Kvs 140.00 m³/h 140 DIN PN16 90533-1169
3244/3277/3730-1 NC/A Valve, 3244-7//3730-1 DN150 Kvs 200.00 m³/h 200 DIN PN16 90533-1170
* 3244 is intended for diverting applications. Confirm flow direction (AB→A vs AB→B) based on your piping and control logic.

Regulating valves type 3321 — 2 ports (with positioner 3725)

Features & benefits: 2-port regulating valve; spring return closed or open available; soft or hard seat; cast iron body; media -10 to 220°C; PN16; DIN or ANSI flanges; positioner 3725 with display available.

Group / Description Denomination Kv / Kvs Connection Part No.
3321/3372/3725 — DIN SS/SS (NC)
EN1092 PN16 · EN-JL1040 · Actuator 3372 · Positioner 3725 (4–20 mA)
3321/3372-3725 120cm² DN15 Kvs0.63 NC 0.63 DIN PN16 90533-4401
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN15 Kvs1.6 NC1.6DIN PN1690533-2259
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN15 Kvs4.0 NC4.0DIN PN1690533-5552
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN20 Kvs2.5 NC2.5DIN PN1690533-2329
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN20 Kvs6.3 NC6.3DIN PN1690533-5551
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN25 Kvs10.0 NC10.0DIN PN1690533-5550
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN25 Kvs4.0 NC4.0DIN PN1690533-2336
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN32 Kvs16.0 NC16.0DIN PN1690533-2323
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN32 Kvs6.3 NC6.3DIN PN1690533-2337
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN40 Kvs10.0 NC10.0DIN PN1690533-2328
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN40 Kvs25.0 NC25.0DIN PN1690533-5549
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN50 Kvs16.0 NC16.0DIN PN1690533-2338
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 120cm² DN50 Kvs35.0 NC35.0DIN PN1690533-5548
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 350cm² DN100 Kvs160.0 NC160.0DIN PN1690533-5545
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 350cm² DN100 Kvs40.0 NC40.0DIN PN1690533-2342
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 350cm² DN65 Kvs40.0 NC40.0DIN PN1690533-2339
3321/3372/3725 — DIN SS/SS (NC)3321/3372-3725 350cm² DN80 Kvs40.0 NC40.0DIN PN1690533-2341
3321/3372/3725 — ANSI SS/SS (NC)
ANSI class 150 · A216 WCC · Actuator 3372 · Positioner 3725 (4–20 mA)
3321/3372-3725 120cm² 1" Kvs10.0 NC 10.0 ANSI 150 90533-4403
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 120cm² 1/2" Kvs4.0 NC4.0ANSI 15090533-2315
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 120cm² 1-1/2" Kvs25.0 NC25.0ANSI 15090533-2317
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 120cm² 2" Kvs16.0 NC16.0ANSI 15090533-2319
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 120cm² 2" Kvs35.0 NC35.0ANSI 15090533-4412
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 120cm² 3/4" Kvs6.3 NC6.3ANSI 15090533-4415
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 350cm² 2-1/2" Kvs100 NC100ANSI 15090533-4414
3321/3372/3725 — ANSI SS/SS (NC)3321/3372-3725 350cm² 3" Kvs100.0 NC100.0ANSI 15090533-4384
3321/3372/3725 — DIN SS/SS + pressure gauge (NC)
Includes pressure gauge · EN1092 PN16 · Actuator 3372 · Positioner 3725 (4–20 mA)
3321/3372-3725 120cm² DN15 Kvs4.0 NC 4.0 DIN PN16 90533-2332
DIN SS/SS + pressure gauge (NC)3321/3372-3725 120cm² DN20 Kvs6.3 NC6.3DIN PN1690533-4391
DIN SS/SS + pressure gauge (NC)3321/3372-3725 120cm² DN25 Kvs10.0 NC10.0DIN PN1690533-2324
DIN SS/SS + pressure gauge (NC)3321/3372-3725 120cm² DN32 Kvs16.0 NC16.0DIN PN1690533-2322
DIN SS/SS + pressure gauge (NC)3321/3372-3725 120cm² DN40 Kvs25.0 NC25.0DIN PN1690533-2326
DIN SS/SS + pressure gauge (NC)3321/3372-3725 120cm² DN50 Kvs35.0 NC35.0DIN PN1690533-4405

Regulating valves type 3323 — 3 ports mixing

Features & benefits: 3-port mixing valve; spring return closed A or B port available; cast iron body; media -10 to 220°C; PN16; DIN flanges; positioner 3725 with display.

Description Denomination DN Kv Bar (range) Max Diff Press L Part No.
3323/3372/3725 DIN SS/SS divert
DivNC, port A(side) · EN1092 PN16 · GG-25 · Actuator 3372 (120cm²) · Positioner 3725
3323/3372-3725 120cm² DN15 Kvs4.0 DN15 4 1.4–1.8 16 130 90521-7249
3323/3372/3725DN20 Kvs6.3DN206.31.4–1.81615090521-7255
3323/3372/3725DN25 Kvs8.0DN2581.4–1.81616090521-7246
3323/3372/3725DN32 Kvs16.0DN32161.4–1.81018090521-7243
3323/3372/3725DN40 Kvs20.0DN40201.4–1.81020090521-7244
3323/3372/3725DN50 Kvs32.0DN50321.4–1.81023090521-7250

2960 — Manual version (Angle seat control valve)

Manual operation version for 2/2 ways angle seat control valve. Connection SMS 3008 welding. Body material 316L, seal material PTFE.

Description Denomination Part No.
2960 W ISO 4200 SS/PTFE Manual
2/2 ways · SMS 3008 welding · 316L · PTFE
2960 Kvs 16.00 m³/h SMS DN25 PTFE 70000206536
2960 Manual 2960 Kvs 36.00 m³/h SMS DN40 PTFE 70000206507
2960 Manual 2960 Kvs 53.00 m³/h SMS DN50 PTFE 70000206489

8802YG / 8802GB / 8802GD — Stainless control valves

8802YG = angle seat valves · 8802GB/8802GD = globe valves. Features: spring return closed or open available, hard seat, self-adjusting packing glands, intermediate relief and wiper. Stainless body. Media -10 to 180°C. Max pressure 16 bar (Steam max 10 bar). Welded or threaded variants. Supports 8694 Top control or 8792 remote control with display. PID controller available. (2702 manual = manual version of 8802YG).

Group / Description Denomination Kv OD×t Max Diff Press Part No.
8802YG W SMS 3008 NO SS/SS
2/2 ways NO · 8694 Top Control · SMS welding · M12 8-pin · 316L · Actuator 70/90
Valve, 8802YG/E70/ DN25 Kvs16.00 m³/h NO 16 25×1.2 - 90533-3033
8802YG W SMS 3008 NO SS/SS Valve, 8802YG/E90/ DN40 Kvs34.00 m³/h NO 34 38×1.2 - 90533-3034
8802YG W SMS 3008 NO SS/SS Valve, 8802YG/E90/ DN50 Kvs49.00 m³/h NO 49 51×1.2 - 90533-3035
8802YG W SMS 3008 NC SS/PTFE
2/2 ways NC · 8694 Top Control · PTFE sealing options · Actuator 70/90/130
Valve, 8802YG/E70/8694 25 Kvs10.00 m³/h NC 10 25×1.2 - 90533-3019
8802YG W SMS 3008 NC SS/PTFE Valve, 8802YG/E90/8694 38 Kvs34.00 m³/h NC 34 38×1.2 - 90533-3024
8802YG W SMS 3008 NC SS/PTFE Valve, 8802YG/E90/8694 51 Kvs49.00 m³/h NC 49 51×1.2 - 90533-3027
8802YG W SMS 3008 NC SS/PTFE Valve, 8802YG/E130/8694 63.5 Kvs90.00 m³/h 90 63.5×1.65 - 90533-3038
8802YG W SMS 3008 NC SS/PTFE Valve, 8802YG/E130/8694 76.1 Kvs90.00 m³/h 90 76.1×1.6 - 90533-3040
8694 cable
Cable for 8694 Top control positioner = 90518-7758 (15m, 1×M12, 8-pin male angled). See automation cables section.
- - - - -
8802YG W SMS 3008 NC SS/PTFE (8792 remote)
2/2 ways NC · 8792 remote w display · Cable gland M20×1.5
8802YG/70E/8792 W DN20 NC SS/PTFE 10 25×1.2 16 90531-2190
8802YG W SMS 3008 NC SS/PTFE (8792 remote) 8802YG/90E/8792 W DN32 NC SS/PTFE 23 38×1.2 16 90531-2206
8802YG W SMS 3008 NC SS/PTFE (8792 remote) 8802YG/90E/8792 W DN50 NC SS/PTFE 49 51×1.2 10 90531-2203
8802YG W SMS 3008 NC SS/SS (8792 remote)
2/2 ways NC · 316L seals
8802YG/70E/8792 W DN25 NC SS/SS 16 25.0×1.2 16 90531-2187
8802YG W SMS 3008 NC SS/SS (8792 remote) 8802YG/90E/8792 W DN40 NC SS/SS 34 38.0×1.2 16 90531-2204
8802YG W SMS 3008 NC SS/SS (8792 remote) 8802YG/90E/8792 W DN50 NC SS/SS 49 51.0×1.2 10 90531-2188
8802YG W SMS 3008 NO SS/SS (8792 remote)
2/2 ways NO
8802YG/70E/8792 W DN25 NO SS/SS 16 25.0×1.2 16 90531-2189
8802YG W SMS 3008 NO SS/SS (8792 remote) 8802YG/90E/8792 W DN40 NO SS/SS 34 38.0×1.2 16 90531-2205
8802YG W SMS 3008 NO SS/SS (8792 remote) 8802YG/90E/8792 W DN50 NO SS/SS 49 51.0×1.2 10 90531-2218
8802YG W ISO 4200 NC SS/SS (8792 remote)
ISO 4200 welding · Cable gland M20×1.5
8802YG/70E/8792 W DN15 NC SS/SS 5 21.3×1.6 16 90531-2173
ISO 4200 NC SS/SS8802YG/70E/8792 W DN25 NC SS/SS1633.7×2.01690531-2177
ISO 4200 NC SS/SS8802YG/90E/8792 W DN32 NC SS/SS2342.4×2.01690531-2195
ISO 4200 NC SS/SS8802YG/90E/8792 W DN40 NC SS/SS3448.3×2.01690531-2202
ISO 4200 NC SS/SS8802YG/90E/8792 W DN50 NC SS/SS4960.3×2.61090531-2178
Group / Description Denomination Max Diff Press Kv OD×t Part No.
8802GB/8802GD W ISO 4200 NC SS/SS
2/2 ways NC globe seat control valve · 8792 remote w display · ISO 4200 welding · 316L
8802GD/70E/8792 W DN20 NC SS/SS 16 7.5 26.9×1.6 90531-2176
8802GD ISO 4200 NC SS/SS 8802GD/70E/8792 W DN25 NC SS/SS 16 11.6 33.7×2.0 90531-2200
8802GD ISO 4200 NC SS/SS 8802GD/90E/8792 W DN32 NC SS/SS 16 13.6 42.4×2.0 90531-2194
8802GD ISO 4200 NC SS/SS 8802GD/90E/8792 W DN40 NC SS/SS 16 34.0 48.3×2.0 90531-2211
8802GD ISO 4200 NC SS/SS 8802GD/90E/8792 W DN50 NC SS/SS 10 27.9 60.3×2.0 90531-2193
8802GD ISO 4200 NC SS/SS 8802GD/130E/8792 W DN65 NC SS/SS 10 65.0 76.1×2.3 90531-2213
* For 8802 series, confirm control unit type (8694 top control vs 8792 remote) and connection (SMS / ISO / threaded/welded) based on site standards.

FAQ

Quick answers to common industrial regulating valve questions.

What is the difference between 2-port and 3-port regulating valves?

A 2-port valve modulates flow inline. A 3-port valve is used to mix or divert flows (e.g., temperature control loops or branch management).

When should I use a positioner (e.g., 3725 or 3730-1)?

Use a positioner when you need stable modulation, accurate setpoint tracking, and feedback/diagnostics — especially for steam and demanding control loops.

How do I size a regulating valve?

Provide media, temperature, inlet/outlet pressure, required flow, and preferred connection standard. We select Kv/Kvs and body/seat options accordingly.

Request a quotation & technical support

Send your process data and we will propose the correct regulating valve configuration.

We’ll match the right valve family, size, and control option.

Please send: media (steam/water/air), temperature, inlet/outlet pressure, required flow (Kv/Kvs), connection standard (DIN/ANSI, thread/weld), and control preference (manual / actuator / positioner).