Siemens VGD40.125/L User Manual

CC1U7643en
14.03.2018
Building Technologies
Operation Manual and Mounting Instructions for a
VGD4/VRD4 double gas valve with 2 SKPx5
actuators
Β
Note!
The combination of a VGD4/VRD4 double gas valve with a QPLx5 pressure switch
and SKPx5 actuator does not require any maintenance.
Caution!
This document is intended for end users. All legal, safety, warning, and
technical notes contained in the data sheets for the SKPx5 actuator (N7643),
VGD4 double gas valve (N7631), VRD4 double gas valve for biogases and
recycling gases (N7649), and the QPLx5 pressure switch (N7221) are also
applicable!

Siemens VGD40.125/L Specifications

General

Brand	Siemens
Model	VGD40.125/L
Category	Control Unit
Language	English

Summary

Use of VGD4/VRD4 Valve and SKPx5 Actuator

SKP15 Actuator Functions

Details the SKP15 actuator's function as a safety shutoff valve (OPEN/CLOSED) for gas-fired plants.

SKP25 Actuator Functions

Explains the SKP25 actuator's role as a safety shutoff valve and gas pressure governor.

SKPx5 Actuator and VGD4/VRD4 Valve Description

Electrical Connection

Details the electrical connections for SKPx5 actuators, including activation voltages and connector types.

VGD4/VRD4 Double Gas Valve Description

Installation Dimensions

Provides detailed installation dimensions for various VGD4/VRD4 valve and SKPx5 actuator combinations.

Pressure Connections

Details pressure connections for VGD4/VRD4 valves, including inlet, inter-valve, and outlet pressures.

QPLx5 Pressure Switches

Description and Caution

Describes the QPLx5 pressure switch function for gas pressure monitoring and provides a caution.

Technical Data

SKPx5 Actuator Technical Data

Lists technical specifications for the SKPx5 actuator, including climatic and temperature conditions.

VGD4/VRD4 Double Gas Valve Technical Data

QPLx5 Pressure Switch Technical Data