Stainless Steel Valves, Pumps & Instrumentation

Stainless Steel Valves, Pumps and Flow Meters: Ranges by Type

Ranges below come from the makers’ technical data. Each order confirms the exact model, rating and leakage class on the quotation.

Sanitary Diaphragm and Angle Seat Valves

Sanitary diaphragm, butterfly and divert valves are also supplied DN 25–100 at PN 10 with 316L bodies polished to Ra ≤ 0.4 µm or electropolished to Ra ≤ 0.25 µm, EPDM, PTFE, FKM or silicone seals in compounds complying with FDA 21 CFR 177.2600, and clamp, butt-weld or DIN 11851 ends. MOQ 2–5 units, about 10–20 days.

Sanitary Centrifugal and Rotary Lobe Pumps

Ports DN 40–100 (1.5–4 in), flow 1.5–60 m³/h, head 15–65 m. All wetted parts 316L, mechanical seals SiC/SiC or tungsten carbide, clamp or DIN flange connections, IP55 or IP66 motors for 50 or 60 Hz and 220, 380 or 440 V. One unit minimum, about 15–25 days, each pump balanced and performance-tested on water before shipment.

Stainless Steel Ball, Gate and Butterfly Valves

Temperature column shows the widest range the maker lists for the type; the normal-temperature build is −29 to 120 °C. Actuators: pneumatic or electric; knife gate and butterfly also manual.

Ball, globe, check and gate valves are also supplied NPS ½–24 (DN 15–600), Class 150–1500 or PN 16–PN 100, with CF8, CF8M, CF3, CF3M or CD3MN (4A) cast bodies or F304/F316 forged bodies; balls and stems in 304, 316, 17-4PH or F51; PTFE, RPTFE, PEEK or Stellite metal seats (to 450 °C); flanged RF/RTJ, socket-weld, butt-weld or NPT/BSPT ends. Every valve is shell and seat tested to API 598 or EN 12266-1. MOQ 5–10 units, about 10–15 days; large actuated valves about 25–35 days.

Control Valves and Regulating Valves

V-port segmented ball control valves are supplied NPS 1–12 (DN 25–300), Class 150/300 or PN 16–40, flanged or wafer, with 30°, 60° or 90° V-notches. Bodies are WCB, CF8 or CF8M; balls are CF8M or 316 with HVOF tungsten carbide or hard chrome facing for pulp, fibre and slurry service. Soft seats (PTFE or PEEK) reach Class VI shutoff and Stellite metal seats Class IV or V. Actuation is pneumatic diaphragm or electric with a 4–20 mA smart positioner and HART.

Pressure Reducing and Desuperheating Stations

Skid-mounted pressure and temperature reducing stations combine a reducing valve (or a separate pressure reducing valve and spray-water control valve), a multi-nozzle desuperheater, a safety relief valve, instruments and bypass piping. Inlet steam up to 10.0 MPa (100 bar) and 540 °C is reduced to 0.2–1.6 MPa and to saturation or 10–15 °C of superheat, with spray water supplied 0.3–0.6 MPa above steam pressure. Pressure parts are carbon steel or Cr-Mo steel such as ASTM A335 P11, P22 or P91, with Stellite-faced 316 trim. Typical uses are combined heat and power, textile dyeing, pulp and paper, and process steam in refineries.

Safety Relief Valves and Pressure Relief Valves

Spring-loaded closed-bonnet safety relief valves to API 526 dimensions, inlet NPS 1–8 (DN 25–200) and outlet NPS 2–10, orifices D through T, Class 150–2500 flanged RF or RTJ, conventional or balanced-bellows (Alloy 625 or 316L bellows). Bodies are WCB, CF8M, CF3M or CD3MN with Stellite-faced 316/316L nozzles and discs. Set pressure 0.1–42.0 MPa.

The ranges covered by the maker’s type-test certificates are: spring-loaded valves for gas and liquid up to PN 42 MPa at DN 80 and down to PN 5 MPa at DN 300, −46 to 300 °C; cryogenic spring valves −196 to 80 °C; steam valves up to 540 °C; pilot-operated valves for gas −29 to 200 °C up to DN 400 at PN 4 MPa.

The safety valve maker holds the ASME UV Certificate of Authorization for pressure vessel pressure relief valves and National Board NB-501 authorization (both to August 2029), a PED 2014/68/EU Module D certificate from TÜV AUSTRIA (notified body 0408) for its listed spring safety valve type, an ISO/IEC 17025 laboratory accreditation from CNAS, and ISO 9001, ISO 14001 and ISO 45001 certificates.

Electromagnetic (Magnetic) Flow Meters

Connecting flanges are carbon steel as standard; stainless flanges are agreed per order.

Pressure Gauges, Pressure Transmitters and Vortex Flow Meters

Bourdon-tube gauges from −0.1 to 100 MPa in 63, 100 and 150 mm dials, accuracy class 1.0 or 1.6; sanitary diaphragm gauges and transmitters 0–2.5 MPa at ±0.5% or ±0.25% FS. Cases 304, wetted parts 316L, glycerin or food-grade silicone fill, IP65 or IP67, with 1/4 or 1/2 NPT, M20×1.5 or 1.5–2 in clamp connections. MOQ 10 units; third-party calibration certificates on request.

Vortex flowmeters for gas and steam are supplied DN 15–300 at ±1.0% accuracy, wafer, flanged or clamp connected, each with a factory flow calibration certificate. The intrinsically safe version is marked Ex ia IIC T6 Ga, IP66, under an explosion-proof certificate to China GB/T 3836 valid to September 2029. Metal-tube variable-area and ultrasonic flowmeters are also available with explosion-proof certificates.

Flameproof (Ex d) actuators and solenoid valves and intrinsically safe (Ex ia) transmitters are available, with IP65, IP66 or NEMA 4X enclosures; the explosion-protection marking and certificate are confirmed for each model on the quotation.

Instrumentation Needle Valves and 2-, 3- and 5-Valve Manifolds

Needle valves and valve manifolds isolate, vent and equalize pressure gauges and pressure or differential pressure transmitters. They pair with the twin-ferrule fittings and instrument tube supplied on the same order.

Product Photos