The document discusses guidelines for installing and maintaining gate valves, including proper storage, installation procedures, and maintenance tips. Key points include protecting the valve seat and seals during storage, verifying materials before installation, ensuring pipes are clean of debris, and properly aligning and supporting the valve during installation. Periodic inspection and exercising of valves is recommended to check for leaks and ensure proper operation.

1. Quarantine Mistakenly
We thankfully acknowledge the receipt of your inquiry. Our offer shall be submitted
shortly.
Mechanical (Maintenance & Project) & Process Work Progress
Report as on 06-04-2021 (Miti: 2077/12/24).
Dear Sir,
Please find the attached copy of the Mechanical Work Progress (Maintenance and
Project) report and Process Work Progress report as on date 06-04-2021 (Miti: 2077/12/24).
Please also find the Daily Manpower report as supplied by NICE ENGG & Prabhat Employers
as on 6th-April & 7th-April-2021 (Miti: 2077/12/24 & 2077/12/25).
This is for your kind notice.
With Thanks & Regards
Vinod Kumar Verma
HOD-Mechanical Department
Balaji Cement Industries (P) Limited,
Chandrauta, Nepal.

2. Need of Technical Support for mill optimization.
Dear Sir,
We are in an urgent need of your technical support regarding the grinding of OPC &
PPC cement for our Loesche Mill LM35.2 + 2CS. As, we are now suffering from the mill
performance from past week. In this regard you are kindly requested to please provide
required technical support in this matter. We are hereby sending all the screen shot taken
during the mill run from 3rd April-2021 to 6th April-2021, for your reference.
We would also like to offer your technical expert to visit our plant Balaji Cement
Industries (P) Limited, Chandrauta, Nepal to troubleshoot the existing issue and
simultaneously to proceed for the 2nd PG test for continuous run of the mill for 72 Hrs.
although we had already accepted & satisfy with your previously carried out PG; but due to
some issue from our side the PG had not carried out for 72 Hrs.
So, you are kindly requested to please either provide us technical online support or
arrange to visit a technical expert to our plant site.
We immensely expect for your technical support in this regard.
With Thanks & Regards
Alok Verma
Director
WELMECH ENGINEERING SERVICES
Kathmandu, Nepal.
Since very long we are regret to inform that there are many out of which
some are very important items of VNR which had already been generated by M/s.
LOESCHE & still not updated their current status and its scheduled delivery to our plant

3. site BCIPL-Chandrauta-Clinker-LM 35.2+2CS. Now we are finally suffering due to the
lack of these items pertaining to mechanical as well as E&I Departments, for our
smooth & continuous operation of the plant.
In this regard we would like to inform you that many items of VNR that are
still pending to full fill our needs & support us to run the plant smoothly. Also no any
step had been taken from your side to update the actual status of these pending items.
So you are kindly requested to please arrange to provide us the detailed
copy of all the VNR generated by you for our side BCIPL-Chandrauta-Clinker-LM
35.2+2CS with the current status and its scheduled delivery or its transition state if
delivered so far.
We hopefully expect an immediate response in this regard.
We would like to inform you that there are some pending VNR which had
already been generated by M/s. LOESCHE & still not updated their current status and
its scheduled delivery to our plant site Balaji Cement Industries (P) Limited, Shivraj-6,
Chandrauta, Nepal. That's why we are sporadically suffering due to the lack of these
items for our smooth & continuous operation of the plant.
In this reference, you are kindly requested to please arrange to provide us
the detailed copy of all the VNR generated by you for our plant site BCIPL-Chandrauta-
Clinker-LM 35.2+2CS. Please also take trouble to provide the current status and its
scheduled delivery or its transition state if delivered so far.
We hopefully expect a prompt reply in this regard and it will highly be
appreciable.
With Thanks & Regards
Vinod Kumar Verma
HOD-Mechanical Department
Balaji Cement Industries (P) Limited,
Chandrauta, Nepal.
Meanwhile, we are discussing with welding teams for hard facing job of grinding tyres. pl. let us know
the followings regarding tyre hard facing job:-

4. 1. Is the hard facing wire received at plant site?
2. What are Covid 19 guidelines in Nepal nowadays for vistors from India Via Barni Border ? Is
there any quarantine policy if any welding team visit is planned to Nepal from India?
3. Is Barni Border is operative nowadays or we have to come via Bhairwa?
4. When you are planning for shut down as we need to plan mobilise the tool and tackles first
and then movement of manpower
Respected Sir,
Good day, Sir.
Please find the attached copy of our quotation for manpower supply for plant
operation and maintenance purpose to your line-II clinkerization and grinding unit. We have
well maintained man-power to suit with all maintenance activities as per your need.
So you are kindly requested to please give us an opportunity to work with your
esteemed organization and our long term mutual relationship for our mutual groth.
With Thanks & Regards
Alok Verma
Director
WELMECH ENGINEERING SERVICES
Kathmandu, Nepal.
There are some important clinical guidelines as per recommendations of NMC,
(Nepal Medical Council) which are mentioned hereunder for a general awareness.

5. 1. Hard facing wire is yet not received at our site. Please send the details of it; so as to
inquire for the same.
2. As nowadays COVID-19 pandemic, the viral disease is affecting our lives most tragically
& India is badly suffering from it. Also, its grave impacts on the visitors of Nepal. There
are some important clinical guidelines as per recommendations of NMC, (Nepal Medical
Council); these points are mentioned hereunder for a general application & awareness
purpose.
i)
Quarantine Information:
(i) Nepal announced that all arrivals into Nepal will be self-quarantined for fourteen
(14) days.
(ii) Suspected cases will be quarantined for 14 days.
(iii) Private and non-government sectors are encouraged to postpone their international
programs scheduled to be held in Nepal.
Although, the public vehicles are prohibited at both the borders (Barhni &
Sonauli/Bhairhawa); but its open for general public movement by on foot to cross the borders.
Also there is no special check at the border for a common public until the person is suspected
for Covid-19. If such coincidence occurs, then the suspect may have to pass through the
Quarantine norms as imposed by Nepal government. The desired Quarantine Information is
mentioned hereunder for your notice.
We would like to remind you some Pending highlighted issues and VNR; which are
causing problem for the smooth running of plant. We finally need your technical support or
clarification for below mentioned points.
(a) Commissioning of HAG with rice husk is still pending,
(b) HAG diesel firing pump having no standby,
(c) Mill gearbox lubrication LP pump having no standby,

6. (d) Bag house all rotary air locks pin bush coupling were to be replaced by another suitable
pin bush coupling. However M/s. BCIPL received 2 Nos. of proposed couplings out of 8
Nos.
(e) Installation of stack monitoring device,
(f) Commissioning of fly ash handling system
(g) Mill Motor Coupling Guard replacement by a suitable modified coupling for adequate
cooling of main motor.
-----Ref: - Mailed to M/s. Loesche dated 24/12/2019 with reminders.
(h) Mill Inlet Draft Transmitter was showing error need your technical support,
-----Ref: - Mailed to M/s. Loesche dated 13/01/2020 with sanps.
(i) Mill Bag House Fan VFD repeated sporadic Problem
-----Ref: - Mailed to M/s. Loesche dated 23/11/2020 & 20/01/2021
(j) Mill Main Motor LRS related Problem as discussed earlier.
-----Ref: - Mailed to M/s. Loesche dated 02/02/2021
Another problem which is observed during the plant operation is that when
NEA power failure occurs, it was found that the fan was moving at the speed of set
point given at DCS until stop with inertia. This may cause regenerative power to flow
in the VFD & may cause component failure in the convertor circuit. It further needs
analysis for the component protection whether to implement DBR or not.

8. Pl.provide below dimensionsof Accumulatorshell.:
Gas valve OD or shell openingontopside.
We can checkour bladderfitmentafterreceiptof above details.
Due to intermittentslightrainfall sheetfixingworkwasstopped.
Parameters Unit
Max. Operating Pressure Bar
Min. Operating pressure Bar
Operating Temp range degC
Require stored volume/discharge volume Ltrs
System Flow rate LPM
Available pump flow LPM
Cycle time Sec
System fluid details
Application details
Dimensional constraints
Required certification

9. Tarpaulin

10. Worng
Gate Valves
Gate Valve Installation & Maintenance Instructions
Gate Valves of all materials and seat types are easy to use and long lasting when they are
installed and maintained correctly. The installation technique varies slightly for different end
connections (eg. flanged vs rolled groove vs victaulic) but the other instructions remain the same.
Storage Conditions
 To protect the seat and seals do not unpack the valves until they are ready for installation.
By doing this you are protecting the valve from dust and debris which may eventually cause
seat leakage.

11.  Keep in a cool well ventilated space if storing for a longer period of time.
Valve Installation
 Valves can be installed in any orientation however it is best if it can be installed upright
especially in bigger sizes for ease of hand wheel access.
 Verify the material of the gate valve, seat and disc before installation. Ensure that there are
no defects caused by storage or transportation.
 Complete all welding works before valve installation and be sure the flange has cooled to
ambient temperature before installing the gate valve using the appropriate gasket.
 Make sure there is no welding residue, waste, rust, pickle paste or other debris in the pipe
before installation. Wash with water or a mild detergent if needed.
 Make sure there is no warpage of the flange or misalignment of the gate valve in relation to
the flange. This is the most common cause of valve problems where it is not aligned with
the flange/pipe correctly. Support the valve where necessary to reduce load on the piping
assembly.
 Install the spacing bolts taking care not to damage the valve seat and adjust the face to face
of the two flanges so there is space when the piping is spread open (enough space to slip
the valve in or out for service).
 Once the pipes are centered, insert the bolts so that the bottom of the valve can rest upon
them to prevent the valve from falling through.
 Tighten the bolts one at a time doing it in stages so even pressure is applied and a seal is
formed between the valve, gasket and flanges.
 Once the installatiion is complete, operate the valve several times to ensure it has not
moved during installation.
Field Testing
 Rubber seated gate valves are designed to hold rated pressures only. Test pressures
above rated working pressure in the closed position can cause damage to the valve.
 With the valve in the open position the pipeline can be tested up to the valve hydrostatic test
pressure.
 Seat leakage can occur when foreign material is wedged between the seat and the body.
If this occurs, open the valve 10% to 15% to obtain high velocity flushing action. Close and
repeat if necessary.
Operation
 Do not use the valve at pressures above its working pressure.
 If the valve is jammed in a position between open and closed check the valve face and seat.
Remove and check for foreign objects (see maintenance).
 Excessive torque from actuators can damage internal valve parts.
Maintenance

12.  Cycle the valve at least once a month if not used regularly.
 Relieve the system pressure before performing any maintenance.
 To remove from pipework reverse the installation sequence (above).
 Replace valve gate by removing the top body (bonnet) and stem. Screw out the gate and
replace with new part. Install top of body and refit into line.
 See video link under each gate valve model for further instructions.
Design Guidance and Product Advantages
 When sizing the valve always consider available space for handwheel operation.
 Consider valve supports to carry excess weight.
 Extensions shafts in 316 Stainless Steel are available upon request. This will allow for the
valve to be mounted in a pit with above ground operation.
 These valves have Ductile Iron bodies for added strength. High finish moulded seats give
low torque operation for long maintenance free working life.