INSTRUCTION OPERATION MANUAL FOR FLOATING SPLIT BODY BALL
VALVES
1. Forewords
1.1. The valves described in
this manual have been designed to block the flow for ON/OFF service only. Do
not use the valve for flow control neither in partly open nor for throttling
service to avoid damage on the sealing surfaces.
As a type of pressure equipment,
valve has potential hazards of pressure and creation of explosive atmosphere
resulting from leakage of process fluid. For the safety purpose, user shall
read this instruction to know what TSV has already taken into account in our
design and manufacture, and what action shall be taken by user according to
essential health and safety requirements.
2. Essential
health & safety requirements and solution
2.1 What’s TSV design idea
-
Ball valve is designed to API 608, valve has adequate strength according to
ASME B16.34 pressure temperature rating.
- Valve is
designed with fire-safety structure certified in accordance with API 607.
- Valve
contains no light metal (such as Mg) and all parts are electricity conductive
and connected to prevent ignite resource.
-
Valve is designed with hand wheel, or gear operator or electric actuator
according to its size and torque, and operation requirements.
2.2 What
action user shall take
2.2.1General
2.2.1.1In any occurrence, first ensure
personnel safety.
2.2.1.2 Use the valves in
accordance with ASME B16.34 pressure-temperature rating.
2.2.1.3 Make sure that the
selected valve materials are corrosion/wear resistance to the service fluid.
2.2.1.4 Where the service
fluid is flammable/explosive, to limit the working temperature.
2.2.1.5 When performing
Repair/maintenance operations, make sure that the valves are always depressurized, vented and drained.
2.2.1.6 For actuator
operated valves, make sure all supply lines (Electrical, hydraulic, Air) are disconnected before starting any
operation.
2.2.1.7 When performing
Repair/maintenance operations, always use appropriate protection e.g. protective clothing,
(oxygen) masks, gloves, etc.
2.2.1.8 When performing
Repair/maintenance operations, do not smoke, do not use any portable no-Ex-proof electrical device
in the area and do not use open fire without
a valid work permit.
2.2.1.9 Valve must
periodically checked on:
- Tightness of bolted connection
(body/closure, gland, flange connection).
- Corrosion/wear damages (crack,
pitting, thickness of the valve).
- Make sure the valves are in
fully open/fully closed position.
2.2.2Specifics
|
Risk
|
Preventive Action
|
|
Accidental
contact with dangerous service
fluid*
Due
to: Gasket or Stem Blow out
|
1.
See2.2.1General
|
|
2. Immediately replace Gasket
and packing after a Blow-out (use approved/suitable materials only)
|
|
3.
Use recommended torque as in Table 1
|
|
Accidental
contact with dangerous service
fluid*
during disassembly or maintenance
operations
|
1.
See2.2.1General
|
|
2.
After removal from the production line, open and close valve to guarantee
depressurized cavity
|
|
3.
Drain any remainder fluid or substances with suitable devices before
disassembly
|
|
Structural
yielding of valves body with
consequent
risk of contact with dangerous
service
medium*, explosion or fire
|
1.
See2.2.1General
|
|
2.
Create precautions to avoid additional forces on the valves
|
|
3.
Avoid absolutely water hammer: install precaution devices if necessary (e.g.
brakes, anti shock devices, etc.)
|
|
4.
Avoid submitting excessive vibrations to the valves
|
|
5. Avoid quick Pressure and/or
Temperature deviations
|
|
Accidental
contact with High or Low
temperature
parts
|
1.
See2.2.1General
|
|
2.
Predispose apposite insulation on the valve
|
|
3.
Alert by means of warning signs about risk of burns
|
|
4.
For Cryogenic service use only valves equipped with Cryogenic Extension
|
|
Fire
or explosion in case of service with
flammable
fluids
|
1.
See2.2.1General
|
|
2.
Install only Ex-proof electrical devices in the area
|
|
3.
While performing maintenance in the area, shut down all electrical devices
|
|
Explosion
in case of oxygen service
|
1.
See2.2.1General
|
|
2.
Install only Ex-proof electrical devices in the area
|
|
3.
Install and use only valves completely degreased
|
|
4.
Use valves only made with materials suitable for oxygen service
|
* Dangerous
service fluid as there are: Toxic-, Corrosive-, Flammable-, High- or Low
temperature etc. fluid
3. Application
Scope and Technical Parameters
3.1 Application scope
The series valves are widely used in
petroleum, chemical, and allied industries for normal operation of pipeline
system
3.2 Technical Parameters:
Nominal
pipeline size: 3/4”~6"
Nominal pressure: 150~800LB
Temperature range: ≤150℃
Fluid: Water,
oil, and other kinds of fluid
Body material: Material as specified in ASME B16.34
Valve testing: API 598
Actuator: Gear, Lever
4. Valve Structure
Please refer to Fig 1 and Fig 2 for valve
structure.
4.1 Main Parts and Material
|
Fig 1
|
Fig 2
|
|
NO.
|
Parts
name
|
NO.
|
Parts
name
|
|
1
|
Body
|
1
|
Body
|
|
2
|
Closure
|
2
|
Closure
|
|
3
|
Ball
|
3
|
Ball
|
|
4
|
Yoke
|
4
|
Gland
flange
|
|
5
|
Gland
flange
|
5
|
Level
|
|
6
|
Seat
ring
|
6
|
Seat
ring
|
|
7
|
Stem
|
7
|
Stem
|
|
8
|
Gland
|
8
|
Gland
|
|
9
|
Gasket
|
9
|
Gasket
|
|
10
|
Packing
set
|
10
|
Steel
ball
|
|
11
|
Packing
|
11
|
Packing
set
|
|
12
|
Packing
|
12
|
Packing
|
|
13
|
Packing
|
13
|
Packing
|
|
14
|
Thrust
plate
|
14
|
Packing
|
|
15
|
Gear
actuator
|
15
|
Stop
plate
|
|
16
|
Stud
|
16
|
Thrust
plate
|
|
17
|
Nut
|
17
|
Stud
|
|
18
|
Bolt
|
18
|
Nut
|
|
19
|
Bolt
|
19
|
Bolt
|
|
20
|
Stud
|
20
|
Spring
|
|
21
|
Spring
|
21
|
Bolt
|
|
22
|
Steel
ball
|
22
|
Retainer
|
|
23
|
Rivet
|
23
|
Washer
|
|
24
|
Nameplate
|
24
|
Rivet
|
|
25
|
Nut
|
25
|
Nameplate
|
|
26
|
Butterfly
spring
|
|
|
|
27
|
Key
|
|
|
|
28
|
Pin
|
|
|
Table 5:Body material suitable for fluid and temperature
range
|
|
ASTM
A216-WCB
|
ASTM
A352-LCB
|
ASTM
A352-LCC
|
ASTM
A217-WC6
|
ASTM
A217-WC9
|
ASTM
A351-CF8
|
ASTM
A351 CF8M
|
ASTM
A351-CF3
|
ASTM
A351 – CF3M
|
|
RECOMMENDED
TEMPERATURE LIMITS
|
-29~427
(T2-T6)
EN13463-
2001
(E)
|
-46~343
(T2~T6) EN13463-
2001
(E)
|
-46~343
(T2~T6) EN13463-
2001
(E)
|
-29~593
(T1~T6) EN13463-
2001
(E)
|
-29~593
(T1~T6) EN13463-
2001
(E)
|
-29~537
(T1~T6) EN13463-
2001
(E)
|
-29~593
(T1~T6) EN13463-
2001
(E)
|
-29~427
(T2~T6) EN13463-
2001
(E)
|
-29~454
(T1~T6) EN13463-2001 (E)
|
|
APPLICATION
|
STEAM,
WATER, OIL, VAPOR, GAS and GENERAL SERVICE
|
LOW
TEMPERATURE SERVICE STEAM, WATER, OIL, VAPOUR, GAS
|
HIGH
TEMPERATURE SERVICE STEAM, WATER, OIL VAPOUR, GAS
|
HIGH
and LOW TEMPERATURE SERVICE CORROSION RESISTANCE
|
Note:
where the process fluid is flammable/explosive, it must limit the working
temperature of the pipeline system.
Table 6:Valve main parts and material for 150～800LB
|
Part name
|
Materials
(ASTM)
|
|
Body
|
A216-WCB
|
A216-LCB
|
A216-LCC
|
A216-WC6
|
A216-WC9
|
A351-CF8
|
A351-CF8M
|
A351-CF3
|
A351CF3M
|
|
Closure
|
A216-WCB
|
A216-LCB
|
A216-LCC
|
A216-WC6
|
A216-WC9
|
A351-CF8
|
A351-CF8M
|
A351-CF3
|
A351CF3M
|
|
Ball
|
A105, F304, F316, A276 410 etc.
|
|
Yoke
|
AISI 20-ZN
|
|
Gland flange
|
A216-WCB
|
A216-LCB
|
A216-LCC
|
A216-WC6
|
A216-WC9
|
A351-CF8
|
|
Level
|
1Cr18Ni9Ti (DN≤1”) or AISI 45
|
|
Seat ring
|
PTFE, PEEK, NYLON 1010
|
|
Stem
|
A105, F304, F316, A276 410 etc.
|
|
Gland
|
A276 420
|
1Cr18Ni9Ti
|
|
Gasket
|
Graphite or stainless steel
winding gasket
|
|
Packing
|
Graphite
|
|
Packing
|
PTFE
|
|
Packing
|
PTFE
|
|
Packing
|
PTFE
|
|
Stop plate
|
AISI 45-NI
|
|
Thrust plate
|
PTFE
|
|
Steel plate
|
1Cr18Ni9Ti
|
|
Spring
|
1Cr18Ni9Ti
|
|
Stud
|
A193-B7
|
A320-L7
/ A320-L7M
|
A193-B16
|
A193-B8
/ A193-B8M
|
|
Nut
|
A194-2H
|
A194-4
/ A194-7M
|
A194-4
|
A194-8
/ A194-8M
|
|
Bolt
|
A193-B7
|
A320-L7
/A320-L7M
|
A193-B16
|
A193-B8
/ A193-B8M
|
|
Butterfly spring
|
50CrVA
|
|
Retainer
|
Carbon Steel
|
1Cr18Ni9Ti
|
|
Washer
|
Carbon Steel
|
1Cr18Ni9Ti
|
|
Key
|
Carbon Steel
|
1Cr18Ni9Ti
|
|
Pin
|
Carbon Steel
|
1Cr18Ni9Ti
|
|
Rivet
|
Carbon Steel
|
1Cr18Ni9Ti
|
|
Nameplate
|
Stainless steel
|
4.2 Working Principle
The function of the ball valve is
to cut off or put through the pipeline. When the ball drove by the wrench or
other actuator, it rotates and the bore of ball superposition/perpendicular
with the bore of body, the valve opens/closes.
4.3 Structure Description
4.3.1 This series uses
packing seal structure. PTFE or NYLON is used as the seat ring material,
PTFE or GRAPHITE is used as the stem packing material.
4.3.2 In the event of fire, when
all the soft seals are damaged, ball valve have post-fire metal-to metal
contact of all sealing areas such as:
Contact
between ball and body;
Contact
between stem and body;
Contact between coupling flanges of split
body.
4.3.3 This series uses
packing seal structure. PTFE or NYLON is used as the seat ring material,
PTFE or GRAPHITE is used as the stem packing material.
4.3.4 Double “D” stem head design
provides mounting of the lever handle always in parallel
to the flow passage. Misalignment of the handle is thus presented.
4.3.5 The
lower end of the stem is designed with an integral collar to be blowout-proof.
For more information, please contact：
ZHEJIANG TIANSHENG VALVE CO., LTD.
Linyang Industrial Zone,Wenzhou City,ZhejiangProvince. P. R. China
Tel: +86-577-67379608
E-mail:tsv@tsv.cn
