Component family
Valve Components and Trim
Stems, balls, seats, bodies and adaptors for industrial valve makers, in stainless, duplex and specialty alloys, with seat profiles proved on a contour tester.
The work
A valve is judged on two surfaces and a fit
Everything a valve does happens at the seat and the stem seal. Get the seat profile right and a valve shuts off; get it approximately right and it passes a shell test and fails a seat test. Stems are turned complete so the packing area, the thread and the drive flats keep their relationship, and seat and groove profiles are read on the contour tester rather than inferred from a width and a depth.
- Materials
- Stainless including 304, 316, 410 and duplex grades, carbon and alloy steels, brass, bronze and gunmetal, and specialty alloys such as Inconel and Monel for aggressive or high temperature service.
- Size range
- Turned to 315 mm diameter with 106 mm through the spindle, longer stems to approximately 700 mm on the turn-mill centre and 1200 mm on the turning centres. Bodies and bonnets to 600 x 500 x 500 mm on the horizontal centre.
- Features handled
- Seat forms and seating angles, stem packing areas and gland fits, drive flats and squares, thread forms, back seats, spindle holes and cross pins, ISO 5211 actuator mounting patterns on the bonnet or adaptor.
- Inspection
- Seat and groove profiles on the Mahr MarSurf contour tester, which is the instrument that actually proves a seating angle. Packing area finish on the Mitutoyo SJ-410. Concentricity of stem to seat and bolt pattern position on the CMM.
Accuracy
Made to the drawing, proved against it
Tell us at enquiry stage which characteristic decides the part. We will confirm capability against that one rather than quote a general figure and hope.
Certification route
Anicon holds ISO 9001:2015. Where a part calls for IATF 16949 it is supplied through Versatile Equipments Pvt Ltd, certified to IATF 16949 and ISO 9001:2015. Anicon’s own IATF certification is in progress.
Related families
Send the drawing
A straight answer inside a working day
A 2D or 3D file, the quantity and the date you need it. You will get a considered reply within one working day, including the reply that we are not the right shop for the part, which is worth knowing early. A mutual NDA goes out first if you would rather.