Yoshitake BLV-2SF is a full bore type ball valve made of stainless steel. It is designed for various non-dangerous fluids including steam, air, cold and hot water, and oil. The valve incorporates an anti-static design that prevents static electricity charging on the valve and a collar on the lower end of the stem that prevents it from popping out due to internal pressure.

Features

1. Body of BLV–2SF is made of stainless steel.
2. Full bore type ball valve.
3. Anti-static design prevents static electricity charging on the valve.
4. The collar on the lower end of the stem prevents the stem from popping out due to the internal pressure even if the gland is removed.

WARNING

Please confirm that the indications on the product correspond with the specifications of the ordered product model before use. If they are different, please contact us without using the product.

Specifications

Model	BLV-2SF
Nominal size	15 - 100A
Application fluid	Steam, air, water, oil and other non-dangerous fluids
Connection	JIS 10K RF flanged ASME Class 150 flanged EN PN16 flanged
Maximum pressure / temperature	According to the pressure-temperature rating
Valve material	Stainless steel
Seat material	PTFE

Pressure and Temperature Rating

(According to manual, max using pressure is 1.4 MPa / 1.6 MPa / 1.9 MPa depending on connection; max using temperature is 167 °C)

Dimensions and Weight

Nominal size	L (JIS 10K, ANSI 150lb)	L (EN PN16)	H	K	Weight (JIS 10K)	Weight (ANSI 150lb)	Weight (EN PN16)
15A	108	130	73	145	1.9	1.6	2.1
20A	117	150	79	145	2.3	1.9	2.8
25A	127	160	91	165	3.8	2.8	4.3
32A	140	180.3	94	165	4.8	3.7	5.8
40A	165	200	113	230	6.5	5.9	7.5
50A	178	230	122	230	8.6	8.5	10.2
65A	190	290	144	230	12.7	12.6	15
80A	203	310	151	320	17.8	18.1	20.7
100A	229	350	165	320	24	28.2	28.5

Structure and Materials

No.	Name of Parts	Material	Q.TY
1	Body	Cast Stainless Steel	1
2	Cap	Cast Stainless Steel	1
3	Ball	Cast Stainless Steel	1
4	Seat	PTFE	2
5	Gasket	PTFE	1
6	Stem	Stainless Steel	1
7	Thrust Washer	PTFE	1
8	Gland Packing	PTFE	3
9	Stem Packing	PTFE	1
10	Gland	Cast Stainless Steel	1
11	Nut	Stainless Steel	1set
12	Stud Bolt	Stainless Steel	1set
13	Bolt	Stainless Steel	2
14	Spring Washer	Stainless Steel	2
15	Unti Static Device	Stainless Steel	2
16	Stopper	Stainless Steel	1
17	Snap Ring	Stainless Steel	2
18	Handle	Cast Stainless Steel	1

Storage and Installation

Storage and Installation

(1) Store the product indoors in a dust free, low humidity, dry and ventilated environment. (2) Installation should be conducted by suitably trained personnel, wearing protective head, eye, hand and foot protection. (3) Connect the product firmly so that the fluid will not leak. (4) In order to avoid excessive piping stress in the valve, carefully align the center of the valve and the connected pipe so that they will be in line. (5) In case that the product is expected to be frozen, be sure to conduct freezing prevention measures or water draining treatment (after use). (6) The valve can be installed in both horizontal and vertical pipes, but the position must be from upright to sideways. Do not install the valve upside down.

Operation

(1) Before applying fluid, make sure that there is no danger if the fluid flow into the end of the piping. (2) When using with a high temperature fluid, do not touch the product with your bare hands. When disassembling and inspecting the product, ensure that pressure in the valve and pipe is released to atmospheric pressure. If using with high temperature fluids, cool the product down well until it can be touched with bare hands.

INFO

(1) When applying the fluid into the valve, operate the valve slowly to prevent water hammer and condensate problem. (2) The product should be used fully open or fully close.

Troubleshooting

Trouble	Cause	Remedy
External leak	1. Nut is loose. 2. Bolt is loose. 3. Gasket is damaged. 4. Gland packing is damaged.	1. Tighten nut. 2. Tighten bolt. 3. Replace the product. 4. Replace the product.
Seat leak	1. Seat is damaged. 2. Ball is damaged. 3. Foreign substances are stuck.	1. Replace the product. 2. Replace the product. 3. Remove the foreign substances.
Abnormally high operation torque	1. Bolt is overtightened. 2. Foreign substances are stuck.	1. Loosen bolt and re-tighten so that there is no leak (but not too tightly). 2. Remove the foreign substances.
Abnormal sound	1. Bolt is loose.	1. Tighten bolt.