Page 175 - Bürkert

On-Off Pneumatically Operated 2/2-way Angle Valve for Liquids

2000 G 1/2” - G 2 1/2”

• Waterhammer-free
• High flow rates
• Self adjusting double packing 2 (A)
• Optical position indicator is standard
1 (P)
• Rotating power head to orient air
control connections 4 (B)

1 (P)

The angle seat valve consists of a pneumatically actuated piston-drive Envelope Dimensions [mm] (see datasheet for details)
and a 2-way valve body. Depending on the ambient temperature the drive
is available in two different materials, PA and PPS. The self reliable gland
packing ensures a good seal. The 2/2-way flow valve body made of
bronze or stainless steel precision casting allows high flow rates. These
durable and robust valves can be retrofitted with a comprehensive range
of accessories for position indication, stroke limitation or manual override.

Technical Data
Pressure range See Ordering Chart
Viscosity max. 600 mm /s
2
Stuffing socket (with silicone grease) PTFE V-Rings with spring compensation
Temperature media -10 ºC to +180 ºC
Ambient temperature
for PA-Actuator 1) -10 ºC to +60 ºC
1)
for PPS-Actuator Ø 40-80 +5 ºC to +140 ºC Flow
for PPS-Actuator Ø 100-125 +5 ºC to +90 ºC, temporary up to +140 ºC direction
1)
Body material Gunmetal or stainless steel 316L Size Actuator A B C D
Seal material PTFE G 1/2” 40 65 53 115 139
Actuator material Polyamide or PPS G 1/2” 50 65 64 140 163
Control medium Instrument air at 6 bar G 3/4” 50 75 64 144 171
Flow direction Under seat G 3/4” 63 75 80 171 198
Safe position Normally closed or normally open
G 1” 50 90 64 152 181
Pilot air port 1/4” (Actuator Ø 40 = 1/8”)
G 1” 63 90 80 177 206
1) Note: For PA actuators in the sizes 40, 50 and 63, the combination of max. medium tem- G 1” 80 90 101 198 228
perature and max. ambient temperature is as shown in the following chart
G 1 1/4” 63 110 80 183 219
G 1 1/4” 80 110 101 205 240
Temperature diagram G 1 1/2” 63 120 80 188 222
G 1 1/2” 100 120 127 260 295
Ambient temperature °C 50 100 120 Ø 40 140 Ø 50 160 180 200 G 2” 80 150 101 225 270
70
289
120
125
G 1 1/2”
324
158
60
Ø 63
100
150
272
G 2”
127
317
125
150
302
347
G 2”
158
40
127
185
239
80
G 2 1/2”
296
30
158
374
317
185
125
G 2 1/2”
20
Media temperature °C
Options
• Double acting • Cleaned for oxygen service
• Solenoid pilot valves • Seal material NBR, FKM, EPDM
• Vacuum version • GL, SIL approvals
• Feedback switches • Stroke limiter
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