Navigate the full valves & strainers reference below.
Valves & Strainers are critical flow control and pipeline protection devices used to start, stop, regulate and protect fluid flow in industrial piping systems. Kennkrupps supplies a comprehensive range of industrial valves and strainers for oil & gas, chemical, petrochemical, power and water treatment applications.
Manufactured as per API 6D, API 600, API 602, API 603, API 608, API 609, ASME B16.34, BS 1414, BS 1873 and other international standards in cast steel, forged steel, stainless steel, alloy steel, duplex and special alloys.
Industrial valves are mechanical devices that control the flow of fluids (liquids, gases, slurries) in piping systems. They start, stop, regulate or redirect flow and protect equipment from overpressure or backflow — essential in oil refineries, petrochemical plants, power stations, water treatment and process industries.
Strainers are filtration devices installed in pipelines to remove solid particles and debris from flowing fluids. They protect downstream equipment such as pumps, valves, meters and instruments from damage caused by foreign particles — available in Y-type and basket configurations, simplex (single) or duplex (twin) for continuous operation.
On/off, throttling, automatic and protection valves for every system.
Full-bore isolation for oil & gas, water, steam.
Precise control for steam, chemical, high-pressure.
Quarter-turn on/off for oil & gas and chemical.
Large-diameter water, HVAC and low-pressure duty.
Automatic protection at pump and compressor discharge.
Multi-port diverting for oil & gas and slurries.
Shear-through isolation for pulp, waste, mining.
Corrosive service, chemical, pharma, food.
Instrumentation, sampling and calibration duty.
Automatic relief for boilers, vessels, pipelines.
Automatic regulation for steam and water supply.
Automatic discharge for process steam lines.
Detail sheets for the five core valve families.
| Parameter | Specification |
|---|---|
| Size Range | 2" to 48" (DN50 to DN1200) |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# (PN10 to PN420) |
| End Connection | Flanged (RF, FF, RTJ), Butt-Weld, Socket-Weld, Threaded |
| Body Material | WCB, WCC, CF8, CF8M, F5, F9, F11, F22, Cast Iron, Ductile Iron |
| Trim Material | 13Cr, 316 SS, Stellite, Monel, Inconel |
| Stem Material | 13Cr, 316 SS, 17-4PH, Monel, Inconel |
| Seat Material | 13Cr, 316 SS, Stellite overlay, PTFE |
| Operating Temperature | -29°C to 425°C (CS), -196°C to 800°C (SS) |
| Standards | API 600, API 603, BS 1414, ISO 10434 |
| Face-to-Face | ASME B16.10 |
| Testing | API 598, ISO 5208 |
| Parameter | Specification |
|---|---|
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# (PN10 to PN420) |
| End Connection | Flanged (RF, RTJ), Butt-Weld, Socket-Weld, Threaded |
| Body Material | WCB, WCC, CF8, CF8M, F5, F9, F11, F22, F91 |
| Trim Material | 13Cr, 316 SS, Stellite, Inconel, Monel |
| Stem Material | 13Cr, 316 SS, 17-4PH, Monel |
| Disc Material | 13Cr, 316 SS, Stellite overlay |
| Operating Temperature | -29°C to 550°C (CS), -196°C to 800°C (SS) |
| Standards | API 623, BS 1873, ASME B16.34 |
| Face-to-Face | ASME B16.10 |
| Testing | API 598, ISO 5208 |
| Parameter | Specification |
|---|---|
| Size Range | 1/2" to 48" (DN15 to DN1200) |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# (PN10 to PN420) |
| Design | Floating Ball, Trunnion Ball |
| Bore | Full Bore, Reduced Bore |
| End Connection | Flanged, Butt-Weld, Socket-Weld, Threaded, NACE |
| Body Material | WCB, WCC, CF8, CF8M, F5, F9, F11, F22, A105, Cast Iron, Ductile Iron |
| Ball Material | 13Cr, 316 SS, Duplex, Super Duplex, Inconel, Hastelloy |
| Stem Material | 13Cr, 316 SS, 17-4PH, Monel, Duplex |
| Seat Material | PTFE, Reinforced PTFE, PEEK, Devlon, Metal-Seated (13Cr, 316 SS, Stellite) |
| Operating Temperature | -29°C to 200°C (Soft Seat), -29°C to 450°C (Metal Seat) |
| Standards | API 6D, API 608, BS 5351, ISO 17292 |
| Face-to-Face | ASME B16.10, API 6D |
| Testing | API 598, ISO 5208 |
| Parameter | Specification |
|---|---|
| Size Range | 2" to 96" (DN50 to DN2400) |
| Pressure Class | 150#, 300#, PN10, PN16, PN25, PN40 |
| Design | Wafer, Lug, Double Flanged, Double Offset, Triple Offset |
| Body Material | Cast Iron, Ductile Iron, WCB, CF8, CF8M, Duplex, Bronze, Aluminum |
| Disc Material | Ductile Iron (Ni-Plated), 13Cr, 316 SS, Duplex, Hastelloy, Bronze, Aluminum |
| Seat Material | EPDM, NBR, Viton, PTFE, Metal-Seated |
| Stem Material | 410 SS, 316 SS, 17-4PH, Duplex, Monel |
| Operating Temperature | -20°C to 120°C (EPDM), -20°C to 180°C (Viton), -29°C to 450°C (Metal) |
| Standards | API 609, BS 5155, ISO 5752, AWWA C504 |
| Face-to-Face | ASME B16.10, API 609, ISO 5752 |
| Testing | API 598, ISO 5208 |
| Parameter | Specification |
|---|---|
| Size Range | 1/2" to 48" (DN15 to DN1200) |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# (PN10 to PN420) |
| Type | Swing Check, Lift Check, Tilting Disc, Dual Plate, Wafer, Piston |
| End Connection | Flanged, Butt-Weld, Socket-Weld, Threaded |
| Body Material | WCB, WCC, CF8, CF8M, F5, F9, F11, F22, Cast Iron, Ductile Iron, Bronze |
| Trim Material | 13Cr, 316 SS, Stellite, Duplex, Monel |
| Disc Material | 13Cr, 316 SS, Duplex, Cast Iron, Ductile Iron |
| Spring Material | 316 SS, Inconel X-750, Hastelloy |
| Operating Temperature | -29°C to 425°C (CS), -196°C to 800°C (SS) |
| Standards | API 594, BS 1868, ASME B16.34 |
| Face-to-Face | ASME B16.10, API 594 |
| Testing | API 598, ISO 5208 |
Y-type, simplex and duplex basket strainers.
| Parameter | Specification |
|---|---|
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Pressure Class | 150#, 300#, 600#, PN10, PN16, PN25, PN40 |
| End Connection | Flanged, Socket-Weld, Threaded, Butt-Weld |
| Body Material | Cast Iron, WCB, CF8, CF8M, F5, F11, F22, Bronze, Ductile Iron |
| Screen Material | 304 SS, 316 SS, Duplex, Monel, Hastelloy, Bronze |
| Screen Perforation | 0.5mm to 6mm (perforated), 10 to 200 mesh (wire mesh) |
| Operating Temperature | -29°C to 425°C (CS), -196°C to 800°C (SS) |
| Standards | MSS SP-80, ASME B16.34 |
| Testing | API 598, ISO 5208 |
| Parameter | Specification |
|---|---|
| Size Range | 1" to 36" (DN25 to DN900) |
| Pressure Class | 150#, 300#, PN10, PN16, PN25 |
| Type | Simplex (Single Basket), Duplex (Twin Basket) |
| End Connection | Flanged |
| Body Material | Cast Iron, WCB, CF8, CF8M, Duplex, Ductile Iron |
| Basket Material | 304 SS, 316 SS, Duplex, Monel, Perforated or Mesh |
| Basket Perforation | 0.5mm to 6mm (perforated), 10 to 200 mesh (wire mesh) |
| Operating Temperature | -29°C to 425°C (CS), -196°C to 800°C (SS) |
| Standards | ASME B16.34, Manufacturer Standard |
| Testing | API 598, ISO 5208 |
Cast steel, stainless, alloy, nickel and non-ferrous alloys.
| Material | Specification | Applications | Temperature Range |
|---|---|---|---|
| Cast Steel WCB | ASTM A216 WCB | Oil & gas, water, steam, general service | -29°C to 425°C |
| Cast Steel WCC | ASTM A216 WCC | Low-temperature service | -46°C to 425°C |
| Stainless Steel CF8 | ASTM A351 CF8 | Chemical, food, general corrosion | -196°C to 800°C |
| Stainless Steel CF8M | ASTM A351 CF8M | Marine, chemical, high corrosion | -196°C to 800°C |
| Stainless Steel CF3 | ASTM A351 CF3 | Low carbon, welded | -196°C to 800°C |
| Stainless Steel CF3M | ASTM A351 CF3M | Low carbon, marine | -196°C to 800°C |
| Alloy Steel F5 | ASTM A182 F5 | High-temperature service | -29°C to 600°C |
| Alloy Steel F9 | ASTM A182 F9 | High-temperature service | -29°C to 650°C |
| Alloy Steel F11 | ASTM A182 F11 | Power plants | -29°C to 550°C |
| Alloy Steel F22 | ASTM A182 F22 | Refineries, high-temperature | -29°C to 550°C |
| Alloy Steel F91 | ASTM A182 F91 | Supercritical boilers | -29°C to 600°C |
| Duplex F51 | ASTM A182 F51 | Offshore, seawater | -50°C to 300°C |
| Super Duplex F53 | ASTM A182 F53 | High-pressure seawater | -50°C to 300°C |
| Monel 400 | ASTM B564 N04400 | Marine, chemical, hydrofluoric acid | -196°C to 450°C |
| Hastelloy C276 | ASTM B574 N10276 | Severe corrosion | -196°C to 450°C |
| Inconel 625 | ASTM B564 N06625 | Aerospace, extreme corrosion | -196°C to 1000°C |
| Cast Iron | ASTM A126 Class B | Water, low-pressure, general | -29°C to 250°C |
| Ductile Iron | ASTM A536 65-45-12 | Water, HVAC, low-pressure | -29°C to 350°C |
| Bronze | ASTM B61, B62 | Marine, low-pressure, general | -29°C to 250°C |
Oil refineries and petrochemical plants, natural gas transmission and distribution, power generation (thermal, nuclear, combined cycle), chemical processing, marine and offshore platforms.
Water and wastewater treatment, HVAC systems, food and beverage processing, pulp and paper industry, sugar and ethanol plants.
Mining and mineral processing, pharmaceutical processing, textile industry and general manufacturing utilities.
Certified manufacturing management system for consistent process control and traceability.
API 6D monogram license, PED 2014/68/EU, IBR approval and NACE MR0175 / MR0103 sour service.
Mill Test Certificates EN 10204 3.1/3.2 with every shipment. Third-party inspection available.
PMI, ultrasonic, dye penetrant, radiography and magnetic particle testing on demand.
Hardness testing and chemical analysis with full lot traceability on every shipment.
Hydrostatic and pneumatic pressure testing to API 598 / ISO 5208 before dispatch.
Complete range of valves and strainers for all applications.
Cast steel, forged steel, SS, alloy, duplex, nickel, iron, bronze.
150# to 2500# (PN10 to PN420).
½" to 96" (DN15 to DN2400).
100% inspection, MTC, API 598 testing every shipment.
Ready stock for common valve sizes and types.
Made to drawing/specifications.
Direct from manufacturer.
Expert guidance on selection and specifications.
Manual, pneumatic, electric, hydraulic, gear operators.
API 6D, PED, IBR, NACE.
Our team can help with valve selection, pressure class, end connection, trim materials, actuation and strainer configuration.