Yoshitake GLV-1 globe valve features wetted parts made of bronze or dezincification resistant brass. It is widely applicable for steam, air, cold and hot water, oil, and other non-dangerous fluids. The valve operates at a maximum pressure of 1.0 MPa and handles maximum temperatures up to 185℃.

Specifications

Application	Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids
Maximum pressure	1.0 MPa
Maximum temperature	185℃
Body Material	Bronze
Bonnet Material	Brass or bronze
Disc Material	Brass or bronze
Connection	JIS Rc screwed

INFO

Valve is closed at the time of shipment from factory.

Dimensions (mm) and Weight (kg) - JIS Rc

Nominal size	d	L	H	D	Weight
15A	Rc 1/2	50	76	54	0.3
20A	Rc 3/4	57	86	61	0.4
25A	Rc 1	65	100	68	0.6
32A	Rc 1-1/4	75	123	77	0.9
40A	Rc 1-1/2	85	135	77	1.1
50A	Rc 2	100	159	83	1.7

Structure and Materials

No.	Part Name	Material	Qty
1	Body	Bronze	1
2	Bonnet	DZR or Bronze	1
3	Disc	DZR or Bronze	1
4	Stem	DZR	1
5	Gland Packing	PTFE	1
6	Packing Ring	Brass	1
7	Gland Nut	Brass	1
8	Handlewheel	Aluminium	1
9	Name Plate	Aluminium	1
10	Nut	Steel	1

Dimensions and Weight - NPT Connection

Size	d	L	H	D	Weight(kg)
15A	NPT 1/2	50	76	54	0.3
20A	NPT 3/4	57	86	61	0.4
25A	NPT 1	65	100	68	0.6
32A	NPT 1-1/4	75	123	77	0.9
40A	NPT 1-1/2	85	135	77	1.1
50A	NPT 2	100	159	83	1.7

Storage and Installation

WARNING

• Store the product indoors in a dust free, low humidity, dry and ventilated environment.
• Installation should be conducted by suitably trained personnel, wearing protective head, eye, hand and foot protection.
• To install the product, check the direction of the product so that the fluid flowing and the arrow marked on the product are in the same direction.
• Be careful that the threaded connection between the mating pipe and the internal threaded connections of the valves are in line to avoid piping stresses in the valves.
• During transportation or storage of the product leakage may occur from the gland nut due to decreasing of tightening pressure by stress relaxation of the packing. Be sure to retighten the gland nut before use.
• When connecting the product and the piping, apply seal agent (such as seal tape) to the screw part of the piping. Use seal agent appropriate for temperature, fluid, etc.
• In case that the product is expected to be frozen, be sure to conduct freezing prevention measures.

DANGER

Before applying fluid, make sure that there is no danger if the fluid flow into the end of the piping. Failure to follow this notice may result in property damage due to fluid leakage.

Operation

TIP

• When using the product with its valve fully open, turn the handle counterclockwise by 45 degrees from the fully open position to prevent the valve from being stuck.
• Be sure to open/close the valve by turning the handle only by hand without using a tool.

Troubleshooting

Trouble	Cause	Remedy
Outside leakage	1. The gland nut is loosened. 2. The gland packing is damaged. 3. The spindle is damaged.	1. Tighten the gland nut additionally. 2. Replace the product with new one. 3. Replace the product with new one.
Leakage from the valve and/or valve seat on complete closing	1. The valve and/or valve seat is damaged. 2. Foreign substance is stuck.	1. Replace the product with new one. 2. Remove the foreign substance.
Operation torque of the handle is abnormally large	1. Too much tightening of the gland nut. 2. Foreign substance is stuck on spindle and screw part.	1. Loosen the gland nut and tighten it again to the no leakage degree. 2. Remove the foreign substance.
Abnormal sound	1. Each screw part is loosened.	1. Retighten the loosened parts.

Maintenance

WARNING

Completely discharge the pressure inside of the product, line and equipment before inspection and maintenance. For high temperature fluid, cool down the product till it can be touched with bare hands. Failure to follow this notice may result in injury or burns due to residual pressure.

Periodic inspection

Please conduct periodic inspection about once a year in order to maintain optimal performance and function of the product.

• Opening and closing operation
• Abnormal sound
• Outside leakage