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Technical Data
Nominal diameter: 1" to 12"
(larger sizes on request)
Design pressure: ANSI 150 to ANSI 1500
End connections: To customer¡äs choice
Temperature range: - 46C to +150C
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Application
PIG VALVES operate in a simple, safe and quick way for launching and
receiving pigs in pipelines. The advantages of Pig Valves compared with
conventional pig trap stations are:
· ease of operation
· safe handling
· compact installation
· lower investment
Design
HARTMANN PIG VALVES are of the same basic design as their standard ball valve
but with an additional trap. The trap is closed by a double bayonet system.
As with the HARTMANN ball valve, the Pig Valve also has double
block-and-bleed and is maintenance-free
Product
Range
PIG VALVES are useful for the following applications:
· Type HMR - For Cleaning purposes.
· Type HMB - For cleaning purposes, but with a bypass in closed
position.
· Type HMS - For separating different products in the same pipeline.
The standard Pig Valve is designed for a maximum pig length of 1.4 times the
nominal diameter. Special design for spherical pigs or cylindrical pigs
longer than 1.4 x ND are obtainable on request.
Method of operation
For launching and receiving the pig, the ball plug should be turned through
90¡ã into the closed position. Before removing the trap cover, the cavity of
the valve should be depressurized by opening the drain valve. The trap cover
must be unlocked, before opening the single or double closure door by
leftturns.
See our Shockwave-Animation for
launching/receiving pigs.
Launching: Insert pig into the ball plug
up to the stop bars.
Receiving: Pull the pig out from the rear.
For further Information about HARTMANN Pig Valves, please contact us for our
operation manual.
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