Valve construction – Val-Matic 30 and Larger Butterfly Valve User Manual
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2
ITEM DESCRIPTION
MATERIAL
1
Body
Gray or Ductile Iron
2
Body Seat
Stainless Steel
3
Disc
Ductile Iron
4
Shaft
Stainless Steel
5
Sleeve Bearing*
Teflon/Fiberglass
6
Resilient Seat*
Buna-N
7
Seat Retaining Ring Stainless Steel
8
Ret. Ring Screws* Stainless Steel
9
Taper Pin
Stainless Steel
10
Taper Pin O-Ring* Buna-N
11
Taper Pin Nut
Stainless Steel
12
Taper Pin Washer Stainless Steel
13
Packing*
Buna-N
14
Key
Carbon Steel
15
Thrust Bearing Cap Ductile Iron
16
Cap Screws
Carbon Steel, Plated
17
Thrust Brg. Stud
Bronze
18
Thrust Plate
Cast Iron
19
Thrust Plate Bolt
Carbon Steel. Plated
20
Thrust Plate Gasket Non-Asbestos Fiber
21
Lock Cap
Cast Iron
22
Lock Cap Bolts
Carbon Steel, Plated
23
Lock Cap Gasket
Non-Asbestos Fiber
24
Body O-Ring
Buna-N
*Recommended Spare Part
VALVE CONSTRUCTION
The standard Series 2000 Butterfly Valve is
constructed of rugged cast iron with a stainless steel
shaft and resilient disc edge. See the specific
Materials List submitted for the order if other than
standard cast iron construction. The details of
construction are illustrated in Figure 2.
The body (1) is available with flanged or mechanical
joint ends for connection to the pipeline. The body is
equipped with a stainless steel seat (2). The 1/4 turn
disc (3) is guided by a stainless steel shaft (4) which
rotates in non-metallic bearings (5) fixed in the body.
Leak-tight closure is made when the resilient seat (6) is
rotated into the stainless steel seat on the "SEAT END"
of the body.
TABLE 1. STANDARD VALVE PARTS LIST
FIGURE 2. STANDARD BUTTERFLY VALVE CONSTRUCTION