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LN Series gauge valves are designed to allow replacement and calibration of pressure gauges, pressure transmitters, and other instruments. They are multi-port gauge valves featuring LN Series bonnets for both isolation and three outlet ports for instrument mounting and maintenance.

Our website contains the most popular LN Series needle valve configurations - more options and accessories are available.  For more information, contact SSP Customer Service.

Specifications

  • Pressure:  Up to 6,000 psig (413 bar)
  • Temperatures:-100 to 1200° F (-73 to 648° C)
  • Stems:
    • Metal Seal: Vee Tip
    • Soft Seal:  PCTFE Tip
  • Material
    • Body: 316 SS, Alloy 400, and Alloy C-276.
    • Packing: PTFE, Grafoil
  • Orifice Sizes: 0.250 
  • End Connection
    • Size: 1/4, 1/2, and 3/4 in. 
    • Type:  MNPT, FNPT threaded pipe ends and Pipe Socket Weld, Pipe Butt Weld, Doulok, Griplok and Unilok tube end. Others are avialable
    • Extended inlets: 4 and 6 in. on three port gauge valves.

LN Series Gauge Valve Options and Accessories
In addition to the product offered on our website, other options and and accessories are available.  These include:

  • Pipe Socket Weld End Connections
  • Speciall Clean in accordance with ASTM 93G Level C
  • Sour Gas Service (NACE MR01-75/ ISO 15156)
  • Panel Mount Nut
  • Rebuild Kits
  • Block & Bleed Valves
  • Rising Plug Gauge Valves.
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Unit of Measure
Items
Gauge valves LN Series Series Gauge Valves Webr

Locked Bonnet Needle Gauge Valves
Gauge valves LN Series Series Gauge Valves Webr

Locked Bonnet Needle Gauge Valves
Gauge valves LN Series Series Gauge Valves Webr

Locked Bonnet Needle Gauge Valves
Gauge valves LN Series Series Gauge Valves Webr

Locked Bonnet Needle Gauge Valves
Gauge valves LN Series Series Gauge Valves Webr

Locked Bonnet Needle Gauge Valves
Body Material N/A 316 SS
Inlet Type N/A Pipe Butt Weld-4" Extended Inlet N/A MNPT N/A MNPT-4" Extended Inlet N/A Pipe Socket Weld-4" Extended Inlet N/A Pipe Butt Weld-4" Extended Inlet
Inlet Size N/A 3/4 in. N/A 3/4-14 N/A 3/4-14 N/A 3/4 in. N/A 1/2 in.
Outlet Type N/A FNPT
Outlet Size N/A 1/2-14
Shape N/A Gauge
A N/A 2.86 in72.6 mm N/A 2.25 in57.2 mm N/A 3.15 in80 mm N/A 3.15 in80 mm N/A 3.04 in77.2 mm
C N/A 0.63 in16 mm N/A 0.63 in16 mm N/A 0.63 in16 mm N/A 0.75 in19.1 mm N/A 0.63 in16 mm
D N/A 1.46 in37.1 mm N/A 1.46 in37.1 mm N/A 1.46 in37.1 mm N/A 1.59 in40.4 mm N/A 1.46 in37.1 mm
E N/A 2.5 in63.5 mm
F N/A 3.95 in100.3 mm N/A 3.95 in100.3 mm N/A 3.95 in100.3 mm N/A 4.08 in103.6 mm N/A 3.95 in100.3 mm
G N/A 1.25 in31.8 mm N/A 1.25 in31.8 mm N/A 1.25 in31.8 mm N/A 1.5 in38.1 mm N/A 1.25 in31.8 mm
H N/A 11/16 or 23/32 in
Cv N/A 0.86
Orifice N/A 0.250 in6.4 mm
Handle Type N/A T-Bar
Stem Type N/A Non-Rotating V-Type Shutoff
B1 N/A 4.93 in125.2 mm N/A 2.97 in75.4 mm N/A 4.93 in125.2 mm N/A 4.93 in125.2 mm N/A 4.93 in125.2 mm
B2 N/A 2.32 in N/A 2.41 in N/A 2.32 in N/A 2.32 in N/A 2.32 in
I N/A 1.50 in
Packing Material N/A PTFE
Stem Material N/A Chrome-Plated 316 SS
Gauge Port Size N/A 1/2
Production Category N/A 3 N/A 1 N/A 4 N/A 3 N/A 3
Connection 3 - Type N/A FNPT
Connection 3 - Size N/A 1/2-14
Connection 4 - Type N/A FNPT
Connection 4 - Size N/A 1/2-14
Handle Color N/A Stainless Steel
Product Descriptions N/A Pipe Butt Weld to Female NPT N/A Male NPT to Female NPT N/A Male NPT to Female NPT N/A Pipe Socket Weld to Female NPT N/A Pipe Butt Weld to Female NPT
Description Text N/A Locked Bonnet Needle Gauge Valves
Inlet Size N/A 3/4 N/A 3/4 N/A 3/4 N/A 3/4 N/A 1/2
Outlet Size N/A 1/2
A_NUM N/A 3.15 in
B N/A 0 in0 mm
B_NUM N/A 0 in