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Liquid back pressure valve LTY71
Liquid back pressure valve LTY71

Liquid back pressure valve LTY71

Liquid back pressure valve LTY71(welded): Shanghai Pressure Regulating Industry Co., Ltd. Is an integrated design and manufacturing manufacturer, SHZDH product: Liquid Back Pressure Valves, Stainless steel back pressure valve etc. Products, More choices, Many proven cases, Saves your sourcing effort,Strong technical capability, Ample spare parts, Fast repair, Fast response,Engineering pipe routing, Chemical fluids.

LTY71 low pressure series liquid back pressure valve, stainless steel diaphragm pressure transmission, accurate pressure control, for regulating upstream pressure, suitable for liquids such as water, oil, organics and acids or alkalis, can be panel mounted.


  • Liquid control
    Liquid control
  • Liquid control
    Liquid control
  • Liquid control
    Liquid control

Design FeaturesDesign features

● Panel or wall mounting available.

● Body and diaphragm adopts hard sealed and soft sealed type.

Body Thread: 1/4"NPT(F)3/8"NPT(F).

SpecificationsCharacteristic parameters

➣ max. Control pressure: 800psig
➣ control pressure: 0~25, 0~50, 0~100, 0~250, 0~300, 0~500, 0~800psig
Safety Test Pressure: 1.5 times of max. Inlet pressure
Temperature Range: -40℃ to +100℃(above 100℃ consult technical)
Leak rate: 2×10-8 atm cc/sec He
Cv value: 0.06, 0.08, 0.2, 0.4, 0.6

Product materialProduct material

Body: 316L, Brass, C276, TA2, PVD, FPTFE, stainless steel pTFE-lined
Bonnet: 304
Diaphragm: 316L, C276, PTFE, PEEK
Valve Seat: PCTFE, PTFE, Vespel, 316L
Spring: 316L
Plug Stem: 316L

Flow Curve ChartFlow curve

Flow Curve Chart

Installation Dimension DrawingInstallation dimensions

Installation Dimension Drawing

Body port layout drawingMatrix bitmap

Body port layout drawing


Ordering GuideORDERING INFORMATION
Body material Body port layout Control pressure Pressure Gauges Inlet gas type Outlet gas type Options
LTY71 liquid back pressure valve L A G G  00 00 P
L:316L
B:Brass
C:C276
T:TA2
PC:PVC
PD:PVDF
PF:PTFE
CF: PTFE-lined
Others available on request
A
B
L:0-25psig
K:0-50psig
I:0-100psig
G:0-250psig
F:0-300psig
E:0-500psig
D:0-800psig
G: With pressure gauge
 (Mpa)
P: With pressure gauge
(psig/bar)
W: Without pressure gauge
00:1/4NPT(F)
01:1/4NPT(M)
02:3/8NPT(F)
10:1/8 tube fitting
11:1/4 tube fitting
12:3/8 tube fitting
91:1/4"VCR(F)
92:1/4"VCR(M)
92:1/4" welded tube
Other fittings available
00:1/4NPT(F)
01:1/4NPT(M)
02:3/8NPT(F)
10:1/8 tube fitting
11:1/4 tube fitting
12:3/8 tube fitting
91:1/4"VCR(F)
92:1/4"VCR(M)
92:1/4" welded tube
Other fittings available
P: Panel-mount mounting