GFK · Edition 05.19
EN-3
➔
The filter pad should be changed at a pressure
gradient ≥ 20 mbar (8 "WC).
Pressure test points on the cover:
GFK 15 to 100:
inlet side: Rp 1/8 pressure test nipple,
outlet side: Rp 1/8 pressure test nipple.
GFK 125 to 250:
inlet side: Rp 1/8 plug,
outlet side: Rp 1/8 plug.
GFK 15T to 100T:
inlet side: Rp 1/8 plug,
outlet side: Rp 1/8 plug.
∆
p
max. = 20 mbar
Cleaning or replacing the filter pad
1
Shut off the gas supply.
2
3
4
5
6
➔
Clean or replace the filter pad.
7
8
➔
Fit the filter pad into the groove in the cover.
9
10
11
➔
Tighten screws in a crosswise fashion and pay
attention to the torque, see table:
type
torque [nm]
GFK 15
5
GFK 20
5
GFK 25
8
GFK 32
8
GFK 40
8
GFK 50
8
type
torque [nm]
GFK 65
8
GFK 80
20
GFK 100
20
GFK 125
60
GFK 150
60
GFK 200
80
GFK 250
80
➔
When replacing the filter pad, the gas-filled space in
the GFK is opened. Therefore, check for tightness
once the filter pad has been reinstalled, see page
2 (Tightness test).
teCHnICAL DAtA
Gas type: natural gas, town gas, LPG (gaseous),
biogas and air.
Max. inlet pressure p
u
:
GFK 15 to 250: 1 bar,
GFK 15R to 65R, GFK 15TN to 100TN: 4 bar
(60 psig),
GFK 40F to 100F: 6 bar.
Ambient temperature: -15 to +80°C (5 to 176°F).
Continuous operation at high temperatures acceler-
ates the ageing of elastomer materials.
Version to DIn 3386
Housing
GFK 15 to 100 made from AlSi.
GFK 125 to 250 made from sheet steel.
GFK..R: Rp internal thread connection to ISO 7-1.
GFK..F: flanged connection to ISO 7005, PN 16.
GFK..N: NPT internal thread.
GFK..A: ANSI 150 flanged connection.
Filter pad: polypropylene fleece (standard 50 μm).
Pressure test points on the cover
GFK 15 to 100:
inlet side: Rp 1/8 pressure test nipple,
outlet side: Rp 1/8 pressure test nipple.
GFK 125 to 250:
inlet side: Rp 1/8 plug,
outlet side: Rp 1/8 plug.
GFK 15T to 100T:
inlet side: Rp 1/8 plug,
outlet side: Rp 1/8 plug.
DesIGneD LIFetIMe
This information on the designed lifetime is based on
using the product in accordance with these operat-
ing instructions. Once the designed lifetime has been
reached, safety-relevant products must be replaced.
Designed lifetime (based on date of manufacture) in
accordance with EN 13611 for GFK: 10 years.
You can find further explanations in the applicable
rules and regulations and on the afecor website (www.
afecor.org).
