2" DN50 Pneumatic Diaphragm Globe Shut-off Valve

2 inch DN 50 pneumatic diaphragm shut-off valve with pneumatic actuator for sale, widely used in industrial fluid control. 304 stainless steel valve body material, rated stroke 12mm, nominal pressure PN16. Adopt pneumatic actuator, reliable operation, suitable for automation system.

SKU: CCHN-PGV-DN50

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Delivery date: 6-25 days

Overview

Note: This globe valve cannot be used for drinking water.

High quality 2 inch pneumatic globe shut-off valve adopts advanced pneumatic technology to ensure precise control and long service life, single seated conical spool, soft seal + hard seal, max working pressure PN16, with high durability and stability, reliably meets all kinds of fluid pipeline needs.

Specification

Model	CCHN-810D-1S2A-4DK41-DN50
Pipe Diameter	2" DN50
Nominal Pressure	PN16 MPa
Rated Flow Coefficient	48 KV
Rated Stroke	12 mm
Film Effective Area	200 cm²
Allowable Pressure Difference	Positive Action: 1.33
Allowable Pressure Difference	Opposite Reaction: 1.77
Signal Pressure	0 or 250
Allowable Leakage	Hard Seal: General: 10^-4 × valve rated capacity; Tight type: single-seat: 1.2 × 10^-7
Allowable Leakage	Soft Seal: Class VI
Operating Temperature	≤ 250℃
Connection Method	Flangeless
Medium of Use	Gas and Liquid
Valve Body Material	304
Bonnet Type	Standard type (-17 ~ +250℃)
Cover Type	Screw compression type
Sealing Material	V-shaped PTFE packing, reinforced PTFE packing, graphite braided packing, flexible graphite
Valve Core Type	Single-seat spool
Flow Characteristics	Quick opening characteristic
Included Accessories	Pneumatic diaphragm actuator, DC24V solenoid valve, limit switch, and air filter regulator.

Dimension (Unit: mm)

Pneumatic globe valve dimension

DN	A	L	H	H1	H4
50	290	254	85.5	185	310

Application

Pneumatic globe valve application

Tips: 2" Pneumatic Globe Valve Troubleshooting

First, check if the air supply is normal, make sure the pneumatic actuator can get enough air pressure. If the air supply is normal, but the actuator does not respond, it may be an internal problem of the pneumatic actuator, and you need to check whether the piston, cylinder and seals of the actuator are intact.

Next, check to see if the connection between the body and bonnet of the 2-inch pneumatic globe valve is tight. If there is looseness or air leakage, you need to retighten the bolts or replace the sealing gasket.

Further, check that the spool is not contaminated or clogged. Contamination may cause the spool to move poorly or the valve may not close completely. Clean the spool and its surrounding parts to ensure that the spool can move freely.

Finally, check the control system to ensure proper signaling. Check that the pneumatic shutoff valve and associated sensors are working properly to rule out the possibility of a faulty control system. Effectively troubleshoot the 2 inch pneumatic globe valve to ensure that it is functioning properly. If the problem is still not solved, it is recommended to seek professional technical support.