Wellmite

Wessington’s Wellmite series of tanks are clas­si­fied as T75 UN Portable tanks under the rules of ADR and IMDG. Wellmites are designed, man­u­fac­tured and tested for stor­ing and trans­port­ing liq­uid nitro­gen by road, sea and from sup­ply ves­sel to off­shore platform.

The Wellmite con­sists of a cryo­genic tank and asso­ci­ated pipe work and valves pro­tected by a robust frame man­u­fac­tured and cer­ti­fied to meet the require­ments of DNV 2.71 and EN12079. Han­dling is by either fork­lift pock­ets or by slings attached to the frame pad eyes.

The tank has been designed for use in all areas of onshore & off­shore oper­a­tion where there is a lim­i­ta­tion on floor space and a restric­tion in crane lift­ing capacity.

Wellmite 500Wellmite 1000

The tanks can be pro­duced with work­ing pres­sures of 60 psig through to 250 psig. ASME ver­sions available.

The Wellmite also fea­tures high vac­uum super-​iunsulation , full set of decals (includ­ing logo’s where pro­vided by the cus­tomer), pres­sure build sys­tem and var­i­ous pipe work options for max­i­mum versatility.

Cus­tom paint­ing on spe­cial request.

Spe­cial Features :-

  • Lower roof plate to allow stack­ing with slings /​shack­les remain­ing in situ
  • Dual trycock valves
  • Optional Hast­ings vac­uum check valve

Spec­i­fi­ca­tion

Wellmite 500

6 Bar

Wellmite 1000

4 Bar ASME

Wellmite 1000

6 Bar

Wellmite 1000

17 Bar

Capac­ity (Litres) 1950 3176 3176 3176
Pres­sure 6 Bar 4 Bar 6 Barg 17 Barg
Tare Weight Kg 1500 2850 2850 3200 Nom­i­nal
Max­i­mum Gross Weight (LN2) Kg 3000 6000 6000 6000
Hold­ing Time Days * 6 8 10 18
Dimen­sions
Length 1750 2438 2438 mm 2438 mm
Width 1750 2175 2175 mm 2175 mm
Height 2510 2438 2438 mm 2438 mm

Mate­ri­als
Inner Shell Stain­less Steel
Outer Jacket Car­bon Steel
Skid /​Frame Car­bon Steel
Pipe Work Tp.316 Stain­less Steel Sch.10
Paint Spec­i­fi­ca­tion

Shot Blast SA 2.5, Zinc Rich Primer 50 Microns. Epoxy High Build 125 Microns. Polyurentane Top Coat 50 Microns.

Stan­dard Colour : White.

Cus­tom Paint Spec­i­fi­ca­tion On Request

Design Approval(s)** ADR, IMDG, IMO, UKDOT, DNV-2.71, EN12079, Optional ASME U Stamped At Lower Pres­sures On Request
Tem­per­a­ture Inner Shell –196°C, Outer Shell –20°C to +50°C
Cor­ner Castings Not applic­a­ble
Cou­plings NIT150 As Stan­dard. Cus­tomer Spe­cific Cou­plings On Request
Roof Plates Alu­minium (Dur­bar on request)

* Hold­ing times to EN 12213

** Design approvals may vary depend­ing on options and Coun­try of oper­a­tion. For details, please con­tact Tech­ni­cal Department

V1 Liq­uid Iso­la­tion Valve
V2 Liq­uid Top Fill Valve
V3 Trycock 95%
V4 Gas Vent Valve
V5 Road Valve
V6 Pres­sure Build Valve
V7 DP Gauge Low Pres­sure Line
V8 DP Gauge High Pres­sure Line
V9 DP Gauge Equal­is­ing Valve
V10 Liq­uid Decant /​Fill Valve
V11 Line Blow Down Valve
V12 Line Blow Down Valve
V13 Sec­ondary Trycock Valve
F1 Strainer
VC Vac­uum Pump­ing Port
PG Pres­sure Gauge
DP Dif­fer­en­tial Pres­sure Con­tents Gauge
C1 NIT150 As Stan­dard. Cus­tomer spec­i­fi­ca­tion on request
C2 NIT150 As Stan­dard. Cus­tomer spec­i­fi­ca­tion on request
RV1 Pri­mary Relief Valve
RV2 Pri­mary Relief Valve
RV3 Line Relief Valve
RV4 Road Relief Valve
NRV1 Non Return Valve
NRV2 Non Return Valve