Pressure Reducing Valve0 pages

نسخه متنی

Armstrong GD-30/30S

For Steam, Air and Non-Corrosive Gases

The GD-30 is a compact, high performance direct acting valve. Economical to buy and use, it's ideal for those low to moderate flow applications where accuracy of +/-10% is acceptable. The GD-30 is well suited for laundry and dry

cleaning equipment, hospital equipment, tire molds, humidifiers, small heaters and applications in food processing. It provides tight shutoff for dead-end service on steam.

For a fully detailed certified drawing, refer to: GD-30 (bronze only) CDY #1038 GD-30S (stainless steel) CDY #1089

GD-30/30S Specifications

Model Number	Inlet Pressure psig (bar)	Reduced Pressure psig (bar)	Spring Color	Minimum Differential psig (bar)	Application	Maximum Temp. °F(°C)	Materials
							Body	Valve/Seat	Bellows
GD-30	15-250 (1-17)	3 - 15 (.21 - 1.0) 7 - 60 (.48 - 4.0) 50 - 140 (3.4 - 9.6)	Yellow Blue Green	7 (.48)	Steam, Air, Non-Corrosive Gases	410 (210)	Cast Bronze ASTM B584	Stainless Steel AISI 440/304	Phosphor Bronze ASTM B103*
GD-30S	15-300 (1-20)				Steam	430 (220)	Stainless Steel AISI 316		Stainless Steel AISI 316L

'Stainless steel optional

GD-30/30S Dimensions and Weights
Symbol	Connection Size
	in	mm	in	mm	in	mm	in	mm	in	mm
	1/2	15	3/4	20	1	25	1-1/2*	40	2*	50
L	3-1/8	80	3-3/8	85	3-3/4	95	5-1/2	140	5-7/8	150
H1	2	47	2	47	2	47	3	77	3	77
H	7-1/2	191	7-1/2	191	7-1/2	191	12-1/8	307	12-1/8	307
Weight lb (kg)	4-1/4 (1.9)		4-1/4 (1.9)		4-1/2 (2.0)		21-3/8 (9.7)		22 (10)
Cv	1.3		1.5		2.5		5.6		8.5

NOTE: GD-30 capacities cannot be determined with a formulaconsult capacity tables. Reference note under formula key on page PTC-8. *GD-30S available in 1/2", 3/4", and 1" only.

-> r

"ra

L-H

All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.

238

PTC-11

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Pressure Reducing Valve0 pages

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