GL Series Discharge Valve

GL series up-spreading/down-spreading discharge valve is a special single-seat regulating valve, the valve body adopts integrated dc y-type structure, the valve chamber has no blocking channel, the internal surface is sandblasting treatment, the valve has no dead Angle, suitable for fine chemical, pharmaceutical and other industries to easy to precipitate or contain particles of fluid on and off control

Product Description

Product Overview

GL series upper and lower spreading type discharge valve is a special single-seat adjustment valve, which can be equipped with pneumatic film actuator and pneumatic piston actuator. It is widely used in fine chemical, pharmaceutical and other industries for discharging materials. It is a special control valve. It has been used for thousands of times in fine chemical, petrochemical, pharmaceutical and other industries.


Performance advantages

The valve body adopts one-piece DC Y structure, the valve cavity has no blocking flow channel, the inner surface is sandblasted or polished, the pressure drop loss is small, the valve has no dead space.

The valve spool adopts floating design, with good automatic in performance, to ensure reliable sealing performance.

The sealing surface adopts tapered form to ensure good sealing performance of the sealing sub.

Inner parts can be welded or sprayed carbide way to ensure the life of the sealing sub.

Good use in the temperature range of -17 to 593℃.

Leakage level to meet in line with GB/T 17213.4-2005 / IEC 60534-4: 1999, hard seal up to level IV and V, soft seal up to level VI.

And the pipeline connection has RF, FM and other flange type.


Typical performance

Ltd., 16,000 tons per year of green high-end chemicals project of Shandong Tokyo Bo Biotechnology Co.

Shandong Guobang Pharmaceutical Co., Ltd, 20201201 Shandong Guobang Pharmaceutical Old Plant Additions Project

Zhejiang Guobang Pharmaceutical Co., Ltd, 407 workshop technical reform

Shangyu Xinhecheng Biochemical Co., 502 cut-off valve (Nine document renovation)

GL Series Discharge Valve


Nominal Size40*50/50*80/65*80/80*100*150/150*200
Pressure RatingPN6/PN10/PN16;CL150(PN20)
Operateing Temperature-17℃~200℃
CharacteristicsQuickly open
Seat Leakage ClassANSI B16.104: IV、V、VI
Body MaterialWCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A etc.
Trim Material304+ST/304+RTFE etc.
Seal MaterialPTFE, Flexible graphite

Nominal diameter: DN25×25, DN25×40, DN25×50, DN32×32, DN32×40, DN32×50, DN40×40, DN40×50, DN50×50, DN50×65, DN50×80, DN65×65, DN65×80, DN65×100 DN80×80, DN80×100, DN80×125, DN100×100, DN100×125, DN100×150, DN150×150, DN150×200, DN200×200, DN200×250

Pressure class: ANSI CL150; DIN PN6/10/16

Valve body and upper valve cover material: WCB, CF8, CF8M, etc.

Structure form: straight stroke upward, straight stroke downward

Packing type: PTFE+graphite V-shaped packing; flexible graphite ring packing; graphite+PTFE preparation packing; etc.

Flow characteristics: Quick-open (Q)

Allowable leakage: metal seal: ANSI B16.104 Class Ⅳ/V; soft seal: ANSI B16.104 Class Ⅵ