111-250_400-0b-01

General information

Type	Main safety-valves - 250/400 type
Subtype:	High parameters valves
Operating medium:	steam
Body material:	20ГСЛ

Description

Safety-valves are designed to prevent equipment damage under extreme pressure level by means of automatic vent of liquid, gaseous, vaporized medium excesses from vessels and systems with overpressure.

We provide a full range of customer service including full warranty, 24/7 consultation and support, valuable insights into the ideal technical solutions in accordance with your requirements and expectations. At your desire we will be glad to supervise or execute the installation and commissioning process. Thanks to strict control over manufacturing process each equipment unit is inspected and recorded so the aftermarket support and spare parts delivery are notable for promptness and full interchangeability. To prolong the life-time of your equipment we are always ready to render on-site services from scheduled maintenance to troubleshooting, equipment inspection and emergency & repair works. All-time we keep our customers informed concerning possible improvements, up-to-date solutions and technical developments which can help to upgrade your equipment and enhance efficiency.

Technical data

Diameter, DN:	250/400	mm
Pressure, PN:	1	MPa
Maximum steam rate:	87-280	t/h
Temperature:	450	C˚
Minimum passage area:	193	cm²
Flow coefficient:	0.65
Operating stroke:	40	mm

Dimensions

L:	760	mm
H:	1200	mm
A:	240	mm
DP1:	254	mm
DH1:	285	mm
DP2:	401	mm
DH2:	440	mm
Weight:	767	kg

Drawing

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Capacity ^?:		ths. m³
Total pressure ^?:		Pa
Temperature ^?:		С ^о
Permissible variation ^?:		%

Capacity:		t/h
Output pressure:		MPa
Output temperature:		С ^о
Permissible variation ^?:		%

Capacity:		MW
Output pressure:		MPa
Permissible variation ^?:		%

① Fan type:	FD Fan ID Fan
② Subtype:
③ Climatic modification ^?:
④ Scroll layout ^?:	° - °
⑤ Rotation direction ^?:	Right-hand Left-hand
⑥ Quantity:	pcs.
⑦ Delivery date:

① Capacity:	ths. m³/h
② Handled medium temperature:	°C
③ Total pressure:
④ Atmospheric pressure: ^?:
⑤ Required efficiency:
⑥ Capacity regulation: ^?:	Yes No

DN:		mm
Pressure:		MPa
Temperature:		^оС
Permissible variation ^?:		%

① Type: Asynchronous squirrel cage Asynchronous with phase-wound rotor Synchronous
② Climatic modification ^?:
③ Rate speed:	rpm
④ IP ^?:	IP
⑤ Supply-line voltage:	V
⑥ Frequency:	Hz

① Density	kg/Nm³
② Dustiness:	g/Nm³
③ Agressive agents content:	%
④ Sticking tendency: ^?

① Company name:*
② Contact person:*
③ Telephone:*
④ Fax:
⑤ Email:*
* - fields are to be filled.

① Boiler type:	Steam Hot-water
② Application:	Heating Hot-water supply Process needs Power generation
③ Fuel ^?:	1: 2:
④ Quantity:	шт.
⑤ Delivery date:

① Steam capacity:	t/h
② Output pressure:
③ Output temperature:	°C
④ Supply water temperature:	°C

① Capacity:
② Operating output pressure:
③ Water temperature graph:	°C

Combustion chamber:
Steam superheater	Economizer
Air heater	Coal pulverization
Mill fan	FD Dan
ID Fan	Ash catcher
Chimney	Ash and slag removal
CPCS	Phosphatizing
Water treatment	Soot blowers

① Grade:
② Calorific value:	kcal/kg
③ Lump size:	mm
④ Humidity:	%
⑤ Ash:	%
⑥ Ultimate composition:	% - Carbon (C) % - Hydrogen (H) % - Oxygen (O) % - Nitrogen (N) % - Sulfur(S)

① Calorific value: ^?:	kcal/m³
② Gas cubic meter weight:	kg/m³
③ Gas temperature:	°С
④ Ultimate composition:	% - Carbon monoxide (СО) % - Carbon dioxide (СО2) % - Hydrogen (H2) % - Oxygen (O2) % - Nitrogen (N2) % - Methane (CH4) % - Heavy hydrocarbon (СmHm) % - Hydrogen sulphide (H2S)

① Control type:	Manual Actuator
② Actuator producer:	Russian Other
③ Total opening (closing) time:	s

① Pipeline	Outer diameter: mm Wall thickness: mm
② Type of connection:	Welded neck Flanges
③ Additional requirements:

① Calorific value:	kcal/kg
② Ash:	%
③ Lump size:	mm
④ Humidity:	%

① Fuel grade:
② Calorific value:	kcal/kg
③ Flash point:	°С

① Type:
② Subtype:
② Subtype:
② Subtype:
③ Operating medium:	Steam Water
④ DN:	Input: mm Output: mm
⑤ Climatic modification ^?:
⑥ Leakage class ^?:
⑦ Body material:
⑧ Quantity:	pcs.
⑨ Date of delivery:

① Fluid temperature:	°С
② Input pressure:	MPa
③ Output pressure:	MPa
② PN:	MPa
③ Operating pressure:	MPa
④ Max. flow rate under min. pressure differential, Gмах:	t/h
⑤ Max. flow rate Gмах:	t/h
⑥ Min. pressure differential unde max. flow rate:	MPa
⑦ Max. pressure differential under min flow rate:	MPa
⑧ On-stream time under max. pressure differential:	h/year
④ Opening pressure:	MPa
⑤ Reverse-seat pressure:	MPa

① Main steam capacity:	t/h
② Desuperheated steam capacity:	t/h
③ Main steam pressure	MPa
④ Main steam temperature	°С
⑤ Desuperheated steam pressure	MPa
⑥ Desuperheated steam temperature	°С
⑦ Cooling water pressure	MPa
⑧ Cooling water temperature	°С