Pressure Relief Valve (NK-BV13 Series)

INTRODUCTION

Pressure relief valves are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal pressure.

Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising temperatures cause increased evaporation or expansion of existing vapor.

To prevent tank damaged, vapor must be allowed to vent into of the tank at specified pressure condition. The volume rate of venting depends upon the tank size, volatility of the tank contents, the pumping rates and the temperature. Refer to API Standard 2000 for the procedures to determine venting requirements.

A relief valve must be carefully maintained by a qualified valve technician. It should only be assembled under clean conditions, preferably in a service shop. Carefully read and understand this manual before installing or attempting to repair a valve. NEOTECHKOREA offers repair services for all products manufactured by us.

 

 

Model No	Type	Setting Pressure Range
NK-BV13W	Weight Loaded release to ATM	22 ~ 700 mmH2O
NK-BV13S	Spring Loaded to ATM	Above 700 mmH2O

 

 

PRESSURE RELIEF
 As the pressure in the storage tank increases. When the set pressure is reached, the pressure pallet lifts and relieves to atmosphere (or to a header if it a pipe away valve).Model NK-BV10, NK-BV13 of quick-opening type is designed for emergency relief of pressure above capacity that supplied by a standard operating valve used on tanks, piping and low pressure vessels. It provides relief from excessive internal pressure that may cause tank damage. Model NK-BV10, NK-BV13 has self-draining housing body and drip rings to protect seating surfaces from condensation and freezing. Model NK-BV13 is for use where pressure relief is required and all relieving vapors must be piped away.

 

 

DRAWING AND DIMENSION (NK-BV13W)  Unit : (mm)

 

 

SIZE	I.D1	I.D2	H1	H2	L1	L2
2"X3"	80	80	251	100	248	150
3"X4"	80	100	309	120	258	160
4"X6"	100	150	379	145	360	220
6"X8"	150	200	489	180	380	240
8"X10"	200	250	532	215	420	253
10"X12"	250	300	623	265	491	298
12"X14"	300	350	686	285	548	330

 

 

DRAWING AND DIMENSION (NK-BV13S)  Unit : (mm)

 

 

SIZE	I.D1	I.D2	H1	H2	L1	L2
2"X3"	50	80	280	100	248	150
3"X4"	80	100	340	120	258	160
4"X6"	100	150	400	145	360	220
6"X8"	150	200	489	180	380	240
8"X10"	200	250	550	215	420	253
10"X12"	250	300	623	265	491	298
12"X14"	300	350	700	285	548	330

 

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com