Yoshitake GLV-10 is a ductile cast iron globe valve designed for steam, air, cold and hot water, oil, and other non-dangerous fluids. It features a JIS Rc threaded connection, a maximum operating pressure of 1.4 MPa, and handles temperatures up to 220°C. The valve body and bonnet are constructed from FCD450 ductile cast iron, ensuring durability in industrial isolation applications.

Specifications

Application	Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids
Maximum Pressure	1.4 MPa *1
Maximum Temperature	220°C *1
Body / Bonnet Material	Ductile cast iron (FCD450)
Disc / Spindle Material	Stainless steel (SUS410 equivalent)
Connection	JIS Rc screwed

*1 The relation between pressure and temperature depends on JIS B 2051 pressure-temperature standard. Valve is closed at the time of shipment from the factory.

Dimensions and Weights

Nominal Size	d	D (mm)	L (mm)	H (mm)	l (mm)	Weight (kg)
8A	Rc 1/4	63	65	100	6	0.5
10A	Rc 3/8	63	65	100	6	0.5
15A	Rc 1/2	63	65	100	6	0.5
20A	Rc 3/4	70	80	110	7	0.7
25A	Rc 1	80	90	126	8	1.0
32A	Rc 1 1/4	100	105	148	10	1.7
40A	Rc 1 1/2	100	120	161	11	2.3
50A	Rc 2	125	140	179	13	3.5

Installation and Storage Cautions

• 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 equipment.
• Install the product so that the fluid flow aligns with the arrow marked on the product.
• During transportation or storage, leakage may occur from the gland nut due to stress relaxation of the packing. Be sure to retighten the gland nut before use.

Operating Warnings

• Before applying fluid, make sure that there is no danger if the fluid flows into the end of the piping. Failure to follow this may result in property damage.
• Before inspection and maintenance, completely discharge the pressure inside the product, line, and equipment.
• For high-temperature fluids, allow the product to cool down until it can be touched with bare hands to prevent injury or burns.

Troubleshooting

Conduct periodic inspection about once a year to check for opening/closing operation, abnormal sound, and outside leakage.

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. 2. Replace the product with a new one. 3. Replace the product with a 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 a 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.