Richter KNAP-S/F Series Ball Valves (ASME) - Manual (Page 4)

Series KNA/F, KNAP/F, KNA-D/F, KNAP-D/F,
Page 4
KNA-S, KNAP-S, ASME
9520-080-en_USA Revision 10
TM 8361 Edition 10/2011
Ball valve sizes in inch :
KNA/F, KNAP/F, KNA-D/F, KNAP-D/F:
½“, ¾“, 1“, 1½“, 2“, 3“, 4“, 6”
8“ with reduced bore 6“
KNA-S/F, KNAP-S/F:
1“, 1½“, 2“
Installation position :
Arbitrary, with low-cavity ball/stem units or an
additional relief bore in the ball/stem units a direction
arrow indicates the direction of flow.
See Sections 6.2.
Weight, KNA/F, KNA-S/F manually operated:
Nom. size ½“ ¾“ 1“ 1½“ 2“
appr. kg 5.6 6 5,6 12 14,5
appr. lbs 12.3 13.2 12.3 26.4 31.9
Nom. size 3“ 4“ 6“ 8"
appr. kg 33,5 50 91 125
appr. lbs 73.7 110 200 275
For weight of actuator, see actuator manufacturer's
manual.
Dimensions and individual parts:
See sectional drawings in Section 10.
Wear parts: Seat rings
Packing components
Ball/stem unit
Al
2
O
3
-ball
stem
Options :
Richter ENVIPACK double packing
for particularly high safety requirements, self-
adjusting.
On request, monitoring and flushing connection.
Ball/stem unit extension
Hand lever extension
Limit switches
for remote monitoring of hand and remote-
activated ball valves.
Stainless steel heating jacket
can be retrofitted, suitable for all common heat
carriers.
1.1 Name plate and body
identification
The stainless steel name plate is undetachably riveted
to the body.
If the operator attaches his identification, it must be
ensured that the valve matches the application in
question.
Example of name plate:
Body identification :
The shell bears the following information:
Nominal size
Rated pressure
Body material
Manufacturer's identification
Melt number/Foundry identification
Cast date
1.2 Tightening torques
All screws greased, tighten in diametrically
opposite sequence!
The tightening torques for pipe screws and body
screws mentioned must not be exceeded. For an
exception, see Section 8, Flange connection valve /
pipe is leaking.
The following tightening torques are recommended:
Packing screws
Thighten packing gland follower 503 until spring gland
follower 502 is in contact without any gap. With 3", 4",
6" and 8” they are 2 spring gland followers 502.
See also Section 10.4 and 10.5.