Z28M High Temperature Floating Ball Valve

Materials:

Stainless Steel, alloys, Carbon Steel – selected to meet temperature and application. ASME B16.34 listed cast or forged material for the valve body and ends.
Surface treatments & coatings – LTPN, HVOF Cr₃ C₂ (Chromium Carbide), HVOF WC-Co (Tungsten Carbide) and Stellite.

Robust design:

Pressure containing parts are in compliance with ASME B16.34 (with modifications for some series).
Leak rate to EN12266-1 Rate B (factory tested) is achieved by accurate grinding and lapping processes.
Constant preloading of ball/seats set obtained by Inconel 718 Belleville spring.

Pressure tested:

Description

High Pressure
High Temperature
Class 2500
Full differential pressure for sizes up to and including 2″ (DN50)
Differential pressure of up to 255 bar (3700 psi) for sizes 2½” (DN65) and above with hybrid seats
Pressure containing parts are in compliance with ASME B16.34 for wall thickness
Design type-tested for burst testing of four times the pressure rating for 5 minutes
A one-size-up stem made of high tensile material complies with ASME B16.34 and API 6D
- For drive train requirements provides a sufficient safety factor during operation.
A special hybrid seat design is comprised of a metal housing and polymer insert machined as a single unit
- Provides bubble tight shut-off (Rate A) combined with lower operating torque