BGV pneumatic gate valve NW50

B90003105

Overview
Prices & Options
Features & Benefits
Technical Data
Accessories

Overview

The BGV basement gate valves are a range of stainless steel, bellows-sealed basement isolation valves. They have been designed, in conjunction with VAT, to enable pumps to be kept running during foreline maintenance in order to maximise the reliability and up-time of pumps operating on harsh processes. The BGV valves are designed for an operating pressure range of 1 x 10^-9 mbar to 1.2 bar absolute (1 x 10^-7 to 1.2 x 10⁵ Pa). The valves withstand 1.2 bar absolute in either direction and can tolerate against a 1 bar differential pressure across the valve seal.
Although principally designed for isolation of pumps in a semiconductor fab basement, the BGV valves are ideal for other applications where a 1 bar differential at opening is desirable and 20000 cycles is acceptable.

BGV pneumatic gate valve NW50

B90003105

Features and Benefits

Jointly developed with VAT, a world leader in sealing technology.
Stainless steel construction and robust patented design for a long service life
Simple grease-free mechanism minimizes damage due to particulates in dusty processes
Can be operated with 1 bar pressure differential so pressure equalization is not required
Easy servicing with only inexpensive consumables for low cost of ownership
Smooth surfaces for easy cleaning
Available with solenoid fitted and wired for easy ordering and installation
Plug and play compatible with Edwards semiconductor dry pump when used with optional BGV TIM interface cable.

Technical Data

Leak rate
Body	< 1 x 10^-9 mbar ls^-1
Valve seat	< 1 x 10^-7 mbar ls^-1
Pressure range	1 x 10^-9 mbar to 1.2 bara
Differential pressure on the gate	1.2 bar in either direction
Differential pressure at opening	1 bar
Cycles until first service	5, 000
Maximum operating temperatures
Valve body	120 °C
Manual actuator	80 °C
Pneumatic actuator	80 °C
Position indicator	60 °C
Solenoid	50 °C
Molecular flow conductance
NW50	300 ls^-1
ISO63	400 ls^-1
ISO80	1100 ls^-1
ISO100	1700 ls^-1
ISO160	4600 ls^-1
Weight
NW50	3.3 kg (7.3 lbs)
ISO63	6.6 kg (14.6 lbs)
ISO80	7.0 kg (15.4 lbs)
ISO100	8.5 kg (18.7 lbs)
ISO160	17.7 kg (39.0 lbs)
Materials of construction:
Body	AISI 304 stainless steel
Bonnet	Black anodized aluminum
Gate	AISI 304 stainless steel
Gliders	PEEK
Bellows	AISI 633 stainless steel
Seals	Fluoroelastomer
Gate fixation screw	A2 stainless steel Ni-teflon coated
Handle	Reinforced polyamide
Pneumatic valves
Solenoid rating
Standard solenoid	24 V - 15% / + 10%, AC/DC, 2.4 W
Position indicator contact rating	12 - 30 V AC/DC, max 500 mA, max 10 W
Pneumatic supply
Min supply pressure	58 psig (4 bar gauge, 5 bar absolute, 5 x 10⁵Pa)
Max supply pressure	100 psig (7 bar gauge, 8 bar absolute, 8 x 10⁵ Pa)
Pneumatic connection	R1/8 inch (1/8 inch NPT for valves ordered in USA)

Dimensions 1

		NW50	ISO63	ISO80	ISO100	ISO160
A	mm/inch	60/2.36	70/2.75	70/2.75	70/2.75	90/3.54
B	mm/inch	36/1.41	43/1.69	43/1.69	43/1.69	52.5/2.06
C	mm/inch	63/2.48	69/2.71	69/2.71	69/2.71	87/3.42
D	mm/inch	60/2.36	68/2.67	68/2.67	68/2.67	87/3.42
E	mm/inch	57/2.24	57/2.24	57/2.24	57/2.24	73/2.87
F	mm/inch	13/0.51	15.5/0.61	15.5 /0.61	15.5/0.61	20.3/0.8
G	mm/inch	120/4.71	160/6.3	200/7.87	200/7.87	260/10.23
H	mm/inch	62.5/2.46	71/2.79	71/2.79	71/2.79	91/3.58
I	mm/inch	110/4.32	123/4.84	142/5.58	160/6.3	210/8.26
J	mm/inch	134/5.27	149/5.86	165/6.49	185/7.28	264/10.39
K	mm/inch	333/13.09	375/14.76	424/16.66	474/18.66	651/25.62
L	mm/inch	149/5.86	176/6.92	209/8.21	239/9.4	337/13.27
M	mm/inch	45/1.77	53.5/2.1	72/2.83	72/2.83	97/3.83
N	mm/inch	90/3.54	105/4.13	124/4.87	142/5.59	192/7.55