Protection Systems

Protection Systems

Since 2004 we offer complete Safety Systems usable for the explosion-technical decoupling. This Safety Systems are consisting of a combination of two
Shut-Off Valves (GS type series: shock pressure resistant and flame tight proofed), a corresponding surge drum as well as an EG-type tested locking system. The reliability principle of the Safety System is based on the fact that one valve is closed at any time. To insure the necessary functionality a locking system was developed which is working independent from the superior control mode. Particularly with regard to vacuum application Protective Systems are used alternatively to rotary airlocks due to their lower leakage air. For more details see also chapter DKZ GS. The type series WA5E 103GS-ST3/… is applicable for aluminium dust / air mixtures and metallic dust of the dust explosion class St3 (Kst ≤1000 bar · m/s). The shock pressure resistance is 14 bar.

  • as a GS-ST3 version usable up to 150°C, with 14 bar shock pressure resistance see type test certificate
    BVS07ATEXH065X
  • usable within reduced explosion pressure (0.3 bar) up to 200°C, according to type test BVS07ATEXH060X, addition 1
  • version DKZ 103 GS available up to DN 500, Kst ≤ 500 bar* m/s
  • seals exchangeable on-site (exception vulcanized construction)
  • also available with white FDA conform seals (condition: dusts with a minimum ignition energy from greater than 3 mJ)
  • Shafts and armature head qualified for the construction of the different drive possibilities, cutting sites after DIN / ISO 5211
Housing
Silumin (Aluminium), steel, stainless steel
Valve Disk
stainless steel, ground and polished
Sleeve
NBR, Hypalone, EPDM, FPM, Silicone, amongst others
Shafts
stainless steel 1.4571 + 1.4057 + 1.4542
Bearing bush
MS, PTFE-coal, bronze
O-Rings
NBR, FPM
  1. Butterfly Valve, type: DKZ 103 GS
  2. With mounted pneumatic actuator
  3. Solenoid Valve
  4. Electro-pneumatic lock
  5. Container
  6. Nameplate
  7. Terminal box

WA5E 103 GS

Consisting of two Butterfly Valves of the DKZ 103 GS series,
an intermediate tank and an EG type-approved control (interlocking).

  • Range of Nominal Widths: DN 50 – DN 500
  • Operating Temperature: – 10°C to + 60°C*
  • Explosion pressure proof: up to 10 bar*
  • Sleeve: replaceable or fix vulcanized
  • According to EC-Type Examination Certificate BVS03AtexH023X
  • Design of surge drum on customer request

WA5E 103 GS-ST

Consisting of two Butterfly Valves series DKZ 103 GS,
a surge drum and an EG-type tested control system (locking).

  • Range of Nominal Widths: DN 50 – DN 200
  • Operating Temperature: – 10°C bis + 150°C*
  • Explosion pressure proof: up to 14 bar*
  • Sleeve: replaceable or fix vulcanized
  • According to EC-Type Examination Certificate BVS07AtexH065X
  • Design of surge drum on customer request

* Operational limitations depend on nominal width, temperature and composite materials. Crucial are the parameters set in the confirmation.

EXHIBITION DATES

Technical Days 2019 Hanau
24. – 25.09.2019

VRAC TECH-BULK TECH 2019
01. – 03.10.2019

NEWS

EXHIBITION DATES

POWTECH 2019 09. – 11.04.2019
VRAC TECH-BULK TECH 2019 01. – 03.10.2019

NEWS