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LN Series block and bleed valves are used in demanding oil & gas exploration, refining, high pressure instrumentation, test stands, steam systems and many other applications having pressures up to 6000 psig (413 bar), temperatures from -100 to 1200°F (-73 to 648°C), high vibration, and frequent cycling.  There are two designs:

  • LNBB Series are block and bleed valves featuring LN Series bonnets for both isolation and bleed functions to allow safe maintenance of instruments in systems with media that must be contained.
  • LNBP Series are block and bleed valves featuring an LN Series isolation valve and an integral bleed port to allow maintenance of instruments having non-hazardous media.

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 and Pipe Socket Weld. Others avialable.

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 Cleaning in accordance with ASTM 93G Level C
  • Sour Gas Service (NACE MR01-75/ ISO 15156)
  • Panel Mount Nut
  • Rebuild Kits
  • Extended inlets:  2, 4 and 6 in.
  • Needle Gauge Valves
  • Rising Plug Gauge Valves

 

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Items
Block & Bleed valves LN Series Series MF Solidworks Render

Locked Bonnet Block & Bleed Valves
Block & Bleed valves LN Series Series MF Solidworks Render

Locked Bonnet Block & Bleed Valves
Block & Bleed valves LN Series Series SOLIDWORKS RENDER

Locked Bonnet Block & Bleed Valves
Block & Bleed valves LN Series Series MF Solidworks Render

Locked Bonnet Block & Bleed Valves
Block & Bleed valves LN Series Series MF Solidworks Render

Locked Bonnet Block & Bleed Valves
Body Material N/A 316 SS N/A 316 SS N/A 316 SS N/A Alloy 400 N/A Alloy 400
Inlet Type N/A MNPT
Inlet Size N/A 1/2-14
Outlet Type N/A MNPT N/A FNPT N/A FNPT N/A FNPT N/A MNPT
Outlet Size N/A 1/2-14
Shape N/A Block & Bleed N/A Block & Bleed N/A Block With Bleed Port N/A Block & Bleed N/A Block & Bleed
A N/A 3.07 in N/A 2.66 in N/A 3.07 in N/A 5.58 in N/A 5.58 in
C N/A 0.63 in
D N/A 1.46 in
E N/A 2.5 in
F N/A 3.95 in
G N/A 1.25 in
H N/A 11/16 or 23/32 in
Cv N/A 0.86
Orifice N/A 0.250 in
Handle Type N/A T-Bar
Stem Type N/A Non-Rotating V-Type Shutoff
B1 N/A 2.44 in N/A 2.25 in N/A 2.25 in N/A 2.25 in N/A 2.44 in
B N/A 0 in
I N/A 1.50 in N/A 1.30 in N/A 1.30 in N/A 1.30 in N/A 1.50 in
Packing Material N/A PTFE
Stem Material N/A Chrome-Plated 316 SS N/A Chrome-Plated 316 SS N/A Chrome-Plated 316 SS N/A Chrome-Plated Alloy 400 N/A Chrome-Plated Alloy 400
Gauge Port Size N/A 1/2
Production Category N/A 1 N/A 1 N/A 1 N/A 4 N/A 4
Handle Color N/A Stainless Steel
Product Descriptions N/A Male NPT N/A Male NPT to Female NPT N/A Male NPT to Female NPT N/A Male NPT to Female NPT N/A Male NPT
Description Text N/A Locked Bonnet Block & Bleed Valves N/A Locked Bonnet Block & Bleed Valves N/A Locked Bonnet Bleed Port Valves N/A Locked Bonnet Block & Bleed Valves N/A Locked Bonnet Block & Bleed Valves
Inlet Size N/A 1/2
Outlet Size N/A 1/2
A_NUM N/A 3.07 in N/A 2.66 in N/A 3.07 in N/A 5.58 in N/A 5.58 in
B2 N/A 2.44 in N/A 2.25 in N/A 2.25 in N/A 2.25 in N/A 2.44 in
B2_NUM N/A 2.44 in N/A 2.25 in N/A 2.25 in N/A 2.25 in N/A 2.44 in
B_NUM N/A 0 in