Xlc 320/420 (Rp 116) Van Điều Khiển Áp Suất Mankenber Viet Nam

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Pressure Control Valves
Back Pressure Regulators XLC 320/420 (RP 116)
Pilot-operated Back Pressure Regulator

Technical Data

Connection DN 50 - 400
Nominal Pressure PN 10, 16, 25
Inlet Pressure 0.7 - 7 / 1.5 - 15 / 8 - 24 bar
Kvs-Value 20 - 3235 m3/h
Temperature 70 °C
Medium water

Description
Self-acting back pressure regulators are simple control valves offering
accurate control while being easy to install and maintain. They control
the pressure upstream of the valve without requiring pneumatic or
electrical control elements.
The XLC 320/420 (RP 116) back pressure regulator is a pilot-controlled
control valve consisting of main valve with position indicator, control
unit, pilot valve, pressure gauge, stop valves and connecting pipes. The
main valve cone is fitted with a soft seal. This valve which has been
specially developed for drinking water applications, features an
electrostatically deposited coating on internal and external surfaces and
meets the KTW recommendation of the German Ministry for Health.
The control unit contains adjustable restrictors which allow the control
characteristics of the pressure reducer to be matched to the system
(closing, opening and response speeds).
The overflow valve is completely piped. It does not require any
additional pilot lines.
The pressure difference between inlet pressure and outlet pressure must
be at least 0.5 bar!
The particle size of the medium shall not exceed 0.3 mm, otherwise a
suitable strainer must be installed upstream of the valve.
These valves are no shut-off elements ensuring a tight closing of the
valve. In accordance with DIN EN 60534-4 and/or ANSI FCI 70-2 they
may feature a leakage rate in closed position in compliance with the
leakage classes V.

Standard
» Pressure stage PN 16
» Designed acc. to EN-1074/4
» Flanges as per EN 1092/2
» Body made ofspheroidal cast ironGJS 450-10 with epoxy coating in
blue RAL 5005, thickness min. 250 μm
» Internal parts, pilot valve and piping made of stainless steel 1.4301
» Coating as per DVGW W270 and KTW recommendation of the
German Ministry for Health

Options
» Body with reduced Kvs values
» Throttle cone
» Anti cavitation cone
» Special designs:
- differential pressure control valves
- flow control valve
- float valve
- others on request
Operating instructions, know how and safety instructions must be
observed. The pressure has always been indicated as overpressure.
We reserve the right to alter technical specifications without notice.

* in accordance with KTW-recommendation and DVGW W270, thickness
min. 250 μm

Special designs on request.
The pressure has always been indicated as overpressure.
Mankenberg reserves the right to alter or improve the designs or
specifications of the products described herein without notice.