Siemens VGD4 series 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 VGD4 series Specifications

General

Brand	Siemens
Model	VGD4 series
Category	Control Unit
Language	English

Summary

1 Use

1.1 SKP15 Actuator Function

Describes the SKP15 actuator as a safety shutoff valve (OPEN/CLOSED) for gas-fired combustion plants.

1.2 SKP25 Actuator Function

Describes the SKP25 actuator as a safety shutoff valve and gas pressure governor for gas-fired combustion plants.

2 Description of the SKPx5 Actuators

2.1 Electrical Connection

2.2 SKP15 Actuator

2.3 SKP25 Actuator

2.4 Description of the VGD4/VRD4 Double Gas Valve

3 Description of the Mountable QPLx5 Pressure Switches

4 Connection Diagram

4.1 Function as a Minimum/Maximum Pressure Switch

5 Technical Data

5.1 SKPx5 Actuator Technical Data

5.2 VGD4/VRD4 Double Gas Valve Technical Data

5.3 QPLx5 Pressure Switch Technical Data

6 Spare Parts and Accessories

7 Lifetime