YAMADA NDP-H40, Руководство по обслуживанию, Страница: 3 / 18

Table of Contents
·Warnings and Cautions
·Table of Contents
1.Principles of operation
--------------------------------------------------------------- 1
2.Tools, etc.
2.1 General tools -------------------------------------------------------------------------- 1
2.2 Special tools --------------------------------------------------------------------------- 1
2.3 Misc. ------------------------------------------------------------------------------------- 1
3.Ordering Replacement parts
------------------------------------------------------ 1
4.Balls and Valve seats
4.1 Removal
■
BA
□
, BS
□
, BF
□
types ---------------------------------------------------------- 2
■
NDP-H40 BP
□
types ------------------------------------------------------------ 3
■
NDP-H50•H80 BP
□
types ----------------------------------------------------- 4
4.2 Inspection ------------------------------------------------------------------------------ 5
4.3 Installation ---------------------------------------------------------------------------- 5
5.Diaphragm, Center rod and Center bushing
5.1 Removal
■
BA
□
, BS
□
, BF
□
types ---------------------------------------------------------- 6
■
BP
□
type ---------------------------------------------------------------------------- 6
5.2 Inspection ------------------------------------------------------------------------------ 7
5.3 Installation
■
B
□
C, B
□
N, B
□
E, B
□
V, B
□
H, B
□
S, B
□
H/T types -------------------- 7
■
B
□
T type ---------------------------------------------------------------------------- 8
6.Throat bearing and Pilot valve assembly
6.1 Removal -------------------------------------------------------------------------------- 9
6.2 Inspection ------------------------------------------------------------------------------ 9
6.3 Installation ---------------------------------------------------------------------------- 9
7.Valve Body Assembly
7.1 Removal ------------------------------------------------------------------------------ 10
7.2 Inspection ---------------------------------------------------------------------------- 11
7.3 Installation -------------------------------------------------------------------------- 11
8.Valve switcher
8.1 Removal ------------------------------------------------------------------------------ 12
8.2 Inspection ---------------------------------------------------------------------------- 12
8.3 Installation -------------------------------------------------------------------------- 12
9.Retightening of Tie rods
---------------------------------------------------------- 13