Yoshitake GLV-16 ductile cast iron globe valve is widely applicable for steam, air, cold and hot water, oil, and other non-dangerous fluids. The wetted parts are made of ductile cast iron, ensuring durability. The valve is closed at the time of shipment from the factory.

Specifications

Application	Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids
Maximum pressure	2.2 MPa *1
Maximum temperature	220℃ *1
Body Material	Ductile cast iron
Bonnet Material	Ductile cast iron
Disc Material	Stainless steel
Connection	JIS Rc screwed

Note

*1 The relation between pressure and temperature depends on P.2-3 JIS B 2051, pressure-temperature standard.

Dimensions and Weights

Nominal size	d	L	H	D	Weight (kg)
15A	Rc 1/2	75	126	83	0.9
20A	Rc 3/4	90	135	105	1.1
25A	Rc 1	105	150	112	1.7
32A	Rc 1-1/4	120	162	132	2.7
40A	Rc 1-1/2	135	183	132	3.8
50A	Rc 2	160	186	132	5.6

Structural Parts

No.	Part	Material	Qty
13	Nut	Steel	1
12	Name Plate	Aluminium	1
11	Handle	Aluminium	1
10	Gland Nut	Ductile Cast Iron (FCD450)	1
9	Gland Cover	Stainless Steel (SUS403)	1
8	Gland Packing	Expanded Graphite	1 set
7	Bonnet Ring	Ductile Cast Iron (FCD450)	1
6	Gasket	Copper (C1100)	1
5	Spindle	Stainless Steel (SUS403)	1

Storage and Installation

Caution

(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) 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. (4) 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. (5) 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. (6) When connecting the product and the piping, apply seal agent (such as seal tape) to the screw part of the piping. (7) In case that the product is expected to be frozen, be sure to conduct freezing prevention measures.

Operation

Warning

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

Caution

(1) 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. (2) Be sure to open/close the valve by applying torque within the limit specified in "the valve User's Guide" published by the Japan Valve Manufactures Association. Do not apply torque more than specified. (3) Do not try to turn the handle beyond its fully open/closed positions. Otherwise the valve may be damaged.

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 until 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.

Inspection items:

• Opening and closing operation
• Abnormal sound
• Outside leakage